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I-TiO2 iyinto ye-semiconductor esetshenziselwa ukuguqulwa kwe-photoelectric. Ukuze kuthuthukiswe ukusetshenziswa kwayo kokukhanya, ama-nanoparticles e-nickel nesiliva e-sulfide akhiwe phezu kwezintambo ze-TiO2 ngendlela elula yokucwilisa kanye nokunciphisa i-photoreduction. Uchungechunge lwezifundo zesenzo sokuvikela se-cathodic sama-nanocomposites e-Ag/NiS/TiO2 ensimbini engagqwali engu-304 senziwe, futhi isimo, ukwakheka, kanye nezici zokumunca ukukhanya kwezinto kuye kwenezelwa. Imiphumela ikhombisa ukuthi ama-nanocomposites e-Ag/NiS/TiO2 alungisiwe anganikeza ukuvikelwa okungcono kakhulu kwe-cathodic kwensimbi engagqwali engu-304 lapho inani lemijikelezo ye-nickel sulfide impregnation-precipitation ingu-6 kanti ukuhlushwa kwe-silver nitrate photoreduction kungu-0.1M.
Ukusetshenziswa kwama-semiconductors ohlobo lwe-n ukuvikela i-photocathode kusetshenziswa ukukhanya kwelanga sekuyinto eshisayo eminyakeni yamuva nje. Uma evuswa ukukhanya kwelanga, ama-electron avela ku-valence band (VB) wezinto ze-semiconductor azovuswa aye ku-conduction band (CB) ukuze akhiqize ama-electron akhiqizwa yi-photo. Uma amandla e-conduction band ye-semiconductor noma i-nanocomposite engemihle kakhulu kunamandla okuzisika ensimbi eboshiwe, lawa ma-electron akhiqizwa yi-photo azodlulela ebusweni bensimbi eboshiwe. Ukuqongelela kwama-electron kuzoholela ekuqhekekeni kwe-cathodic kwensimbi futhi kuhlinzeke ngokuvikelwa kwe-cathodic kwensimbi ehlobene1,2,3,4,5,6,7. Izinto ze-semiconductor zibhekwa ngokwethiyori njenge-photoanode engeyona eyomhlatshelo, njengoba ukusabela kwe-anodic akulonakalisi izinto ze-semiconductor uqobo, kodwa ukuwohloka kwamanzi ngemigodi ekhiqizwa yi-photocathode noma ukungcola okungokwemvelo okufakwe emanzini, noma ukuba khona kwabaqoqi ukuze babambe imigodi ekhiqizwa yi-photocathode. Okubaluleke kakhulu, izinto ze-semiconductor kumele zibe namandla e-CB angemihle kakhulu kunamandla okugqwala kwensimbi evikelwe. Kungaleso sikhathi kuphela lapho ama-electron akhiqizwa nge-photogeneration angadlula khona esuka ebhendini lokuqhuba le-semiconductor aye ensimbini evikelwe. Izifundo zokumelana nokugqwala kwe-photochemical zigxile ezintweni ze-semiconductor ze-inorganic n-type ezinezikhala zebhendi ebanzi (3.0–3.2EV)1,2,3,4,5,6,7, ezisabela kuphela ekukhanyeni kwe-ultraviolet (<400 nm), okunciphisa ukutholakala kokukhanya. Izifundo zokumelana nokugqwala kwe-photochemical zigxile ezintweni ze-semiconductor ze-inorganic n-type ezinezikhala zebhendi ebanzi (3.0–3.2EV)1,2,3,4,5,6,7, ezisabela kuphela ekukhanyeni kwe-ultraviolet (<400 nm), okunciphisa ukutholakala kokukhanya. Исследования стойкости к фотохимической коррозии были сосредоточены на неорганических полупроводниковых материалах n-типа с широкой,3,3 EV)1,2,3,4,5,6,7, которые реагируют только на ультрафиолетовое излучение (< 400 нм), уменьшение доступности света. Ucwaningo mayelana nokumelana nokugqwala kwe-photochemical lugxile ezintweni ze-semiconductor ezingaphili zohlobo lwe-n ezine-bandgap ebanzi (3.0–3.2 EV)1,2,3,4,5,6,7 eziphendula kuphela emisebeni ye-ultraviolet (<400 nm), ukutholakala kokukhanya okunciphile.光化学耐腐蚀性研究主要集中在具有宽带隙(3.0–3.2EV)1,2,3,4,5,6,7 的无机n型半导体材料上，這些材料仅对紫外光（< 400 nm）有响应，减少光的可用性。光 化学 耐腐 蚀性 研究 主要 在 具有 宽带隙 宽带隙 宽带隙 (3.0–3.2ev) 1.2,3,4,7,6,材料 上， 這些 材料 仅 对 (<400 nm） 有 有 有 有 有 有 有 有 有 有 有 有 有 有响应，减少光的可用性. I-Исследования стойкости к фотохимической коррозии в основном были сосредоточены на неорганических полупроводниковых материалах n-тизешен (3,0–3,2EV)1,2,3,4,5,6,7, которые чувствительны только к УФ-излучению (<400 нм). Ucwaningo mayelana nokumelana nokugqwala kwe-photochemical lugxile kakhulu ezintweni ze-semiconductor ezingaphili zohlobo lwe-n ezingu-1,2,3,4,5,6,7 ezizwela kuphela emisebeni ye-UV. (<400 nm).Ngenxa yalokho, ukutholakala kokukhanya kuncipha.
Emkhakheni wokuvikela ukugqwala kolwandle, ubuchwepheshe bokuvikela i-cathodic be-photoelectrochemical budlala indima ebalulekile. I-TiO2 iyinto ye-semiconductor enokumuncwa okuhle kakhulu kokukhanya kwe-UV kanye nezakhiwo ze-photocatalytic. Kodwa-ke, ngenxa yesilinganiso esiphansi sokusetshenziswa kokukhanya, izimbobo ze-electron ezikhiqizwa nge-photo zihlangana kalula futhi azikwazi ukuvikelwa ngaphansi kwezimo ezimnyama. Ucwaningo olwengeziwe luyadingeka ukuthola ikhambi elifanele nelisebenzayo. Kubikwe ukuthi izindlela eziningi zokuguqula ubuso zingasetshenziswa ukuthuthukisa ukuzwela kwe-photosensitive kwe-TiO2, njengokusebenzisa i-doping nge-Fe, N, kanye nokuxuba ne-Ni3S2, Bi2Se3, CdTe, njll. Ngakho-ke, i-TiO2 composite enezinto ezisebenza kahle kakhulu ekuguqulweni kwe-photoelectric isetshenziswa kabanzi emkhakheni wokuvikela i-cathodic ekhiqizwa nge-photo.
I-Nickel sulfide iyinto ye-semiconductor enegebe elincane lebhendi elingu-1.24 eV8.9 kuphela. Uma igebe lebhendi lincane, kulapho ukusetshenziswa kokukhanya kuqina khona. Ngemva kokuba i-nickel sulfide ixutshwe nobuso be-titanium dioxide, izinga lokusetshenziswa kokukhanya lingandiswa. Uma ihlanganiswe ne-titanium dioxide, ingathuthukisa ngempumelelo ukusebenza kahle kokuhlukaniswa kwama-electron nama-hole akhiqizwa nge-photo. I-nickel sulfide isetshenziswa kabanzi ekukhiqizweni kwe-hydrogen nge-electrocatalytic, amabhethri kanye nokubola kokungcola okungu-8,9,10. Kodwa-ke, ukusetshenziswa kwayo ekuvikelweni kwe-photocathode akukabikwa. Kulolu cwaningo, kwakhethwa into ye-semiconductor ye-bandgap encane ukuze kuxazululwe inkinga yokusebenza kahle kokukhanya kwe-TiO2 okuphansi. Izinhlayiya ezincane ze-nickel nesiliva ze-sulfide zaboshwa ebusweni be-nanowires ze-TiO2 ngokucwiliswa kanye nezindlela zokunciphisa ukukhanya, ngokulandelana. I-nanocomposite ye-Ag/NiS/TiO2 ithuthukisa ukusebenza kahle kokusetshenziswa kokukhanya futhi yandisa ububanzi bokumuncwa kokukhanya kusukela esifundeni se-ultraviolet kuya esifundeni esibonakalayo. Okwamanje, ukufakwa kwama-nanoparticles esiliva kunikeza i-Ag/NiS/TiO2 nanocomposite ukuzinza okuhle kakhulu kokukhanya kanye nokuvikelwa kwe-cathodic okuzinzile.
Okokuqala, i-titanium foil engu-0.1 mm ubukhulu obuhlanzekile obungu-99.9% yasikwa yaba usayizi ongu-30 mm × 10 mm ukuze kwenziwe izivivinyo. Ngemuva kwalokho, ubuso ngabunye be-titanium foil bapholishwa izikhathi eziyi-100 ngephepha lesihlabathi elingu-2500, bese begezwa ngokulandelana nge-acetone, i-ethanol ephelele, namanzi acwecwe. Beka ipuleti le-titanium engxubeni engu-85 °C (i-sodium hydroxide: i-sodium carbonate: amanzi = 5:2:100) imizuzu engama-90, susa bese ugeza ngamanzi acwecwe. Ubuso baqoshwa ngesisombululo se-HF (HF:H2O = 1:5) umzuzu owodwa, bese begezwa ngokushintshana nge-acetone, i-ethanol, namanzi acwecwe, bese ekugcineni bomiswa ukuze kusetshenziswe. Izintambo ze-titanium dioxide nanowires zenziwa ngokushesha ebusweni be-titanium foil ngenqubo yesinyathelo esisodwa ye-anodizing. Ukuze kufakwe i-anodizing, kusetshenziswa uhlelo lwendabuko lwama-electrode amabili, i-electrode esebenzayo iyishidi le-titanium, kanti i-counter electrode iyi-electrode ye-platinum. Beka ipuleti le-titanium ku-400 ml yesisombululo se-2 M NaOH ngama-clamp e-electrode. Amandla kagesi e-DC azinzile cishe ku-1.3 A. Izinga lokushisa lesisombululo ligcinwe ku-80°C imizuzu eyi-180 ngesikhathi sokusabela komzimba. Ishidi le-titanium lakhishwa, lagezwa nge-acetone ne-ethanol, lagezwa ngamanzi acwengekile, lase lomiswa ngokwemvelo. Ngemuva kwalokho amasampula afakwa esithandweni sokushisa esithambile ku-450°C (izinga lokushisa lingu-5°C/min), agcinwe ekushiseni okungaguquki imizuzu eyi-120, bese efakwa kuthreyi yokomisa.
I-composite ye-nickel sulfide-titanium dioxide itholakale ngendlela elula nelula yokucwilisa. Okokuqala, i-nickel nitrate (0.03 M) yancibilikiswa ku-ethanol futhi yagcinwa ngaphansi kokuxutshwa okunamandla imizuzu engama-20 ukuze kutholakale isisombululo se-ethanol se-nickel nitrate. Bese ulungisa i-sodium sulfide (0.03 M) ngesisombululo esixubile se-methanol (methanol:water = 1:1). Ngemuva kwalokho, amaphilisi e-titanium dioxide afakwa esixazululweni esilungiselelwe ngenhla, akhishwa ngemva kwemizuzu emi-4, bese egezwa ngokushesha ngesisombululo esixubile se-methanol namanzi (methanol:water = 1:1) umzuzu owodwa. Ngemva kokuba ubuso sebomile, amaphilisi afakwa esithandweni somlilo, ashiswa ku-vacuum ku-380°C imizuzu engama-20, apholiswe ekushiseni kwegumbi, bese omiswa. Inani lemijikelezo 2, 4, 6 kanye no-8.
Ama-nanoparticle e-Ag ashintshiwe ama-nanocomposites e-Ag/NiS/TiO2 nge-photoreduction12,13. I-nanocomposite ye-Ag/NiS/TiO2 ephume yafakwa esixazululweni se-nitrate yesiliva esidingekayo kulo mzamo. Amasampula abe esekhanyiswa ngokukhanya kwe-ultraviolet imizuzu engama-30, izindawo zawo zahlanzwa ngamanzi angenawo i-ion, kanti ama-nanocomposites e-Ag/NiS/TiO2 atholakala ngokomiswa kwemvelo. Inqubo yokuhlola echazwe ngenhla iboniswe kuMfanekiso 1.
Ama-nanocomposites e-Ag/NiS/TiO2 abonakaliswe kakhulu yi-field emission scanning electron microscopy (FESEM), i-energy dispersive spectroscopy (EDS), i-X-ray photoelectron spectroscopy (XPS), kanye nokukhanya okusabalele ku-ultraviolet kanye ne-visible ranges (UV-Vis). I-FESEM yenziwe kusetshenziswa i-Nova NanoSEM 450 microscope (FEI Corporation, USA). I-voltage esheshisa i-1 kV, usayizi we-spot 2.0. Idivayisi isebenzisa i-CBS probe ukuthola ama-electron esibili kanye nawasemuva ukuze kuhlaziywe i-topography. I-EMF yenziwe kusetshenziswa uhlelo lwe-Oxford X-Max N50 EMF (Oxford Instruments Technology Co., Ltd.) olune-voltage esheshisa i-15 kV kanye nosayizi we-spot 3.0. Ukuhlaziywa kwekhwalithi kanye nokwenani kusetshenziswa ama-X-ray ahlukile. I-X-ray photoelectron spectroscopy yenziwe ku-Escalab 250Xi spectrometer (Thermo Fisher Scientific Corporation, USA) esebenza kwimodi yamandla engaguquki enamandla okuvuselela angu-150 W kanye nemisebe ye-Al Kα e-monochromatic (1486.6 eV) njengomthombo wokuvuselela. Ububanzi bokuskena obuphelele bungu-0–1600 eV, amandla aphelele angu-50 eV, ububanzi besinyathelo esingu-1.0 eV, kanye ne-carbon engcolile (~284.8 eV) kwasetshenziswa njengezinkomba zokulungisa ukushaja kwamandla okubopha. Amandla okudlula kokuskena okunciphile ayengu-20 eV ngesinyathelo esingu-0.05 eV. I-Diffuse reflectance spectroscopy esifundeni esibonakala nge-UV yenziwe ku-Cary 5000 spectrometer (Varian, USA) enepuleti ejwayelekile ye-barium sulfate ebangeni lokuskena elingu-10–80°.
Kulo msebenzi, ukwakheka (iphesenti lesisindo) kwensimbi engagqwali engu-304 kungu-0.08 C, 1.86 Mn, 0.72 Si, 0.035 P, 0.029 s, 18.25 Cr, 8.5 Ni, kanti okusele yi-Fe. 10mm x 10mm x 10mm 304 insimbi engagqwali, i-epoxy efakwe embizeni ene-1 cm2 eveziwe. Ubuso bayo bagcotshwa ngephepha le-silicon carbide elingu-2400 grit futhi bagezwa nge-ethanol. Insimbi engagqwali yabe isifakwa emanzini acwebezelwe imizuzu emi-5 bese igcinwa kuhhavini.
Ekuhlolweni kwe-OCP, insimbi engagqwali engu-304 kanye ne-photoanode ye-Ag/NiS/TiO2 kwafakwa esitokisini sokugqwala kanye neseli le-photoanode, ngokulandelana (Isithombe 2). Iseli lokugqwala lagcwaliswa ngesisombululo se-NaCl esingu-3.5%, kwathi i-0.25 M Na2SO3 yathululelwa esitokisini se-photoanode njengesicupho sembobo. Ama-electrolyte amabili ahlukaniswa nengxube kusetshenziswa ulwelwesi lwe-naphthol. I-OCP yalinganiswa endaweni yokusebenza ye-electrochemical (P4000+, e-USA). I-electrode yokubhekisela kwakuyi-electrode ye-calomel egcwele (SCE). Umthombo wokukhanya (isibani se-xenon, i-PLS-SXE300C, i-Poisson Technologies Co., Ltd.) kanye nepuleti elinqunyiwe elingu-420 kwabekwa endaweni yokukhipha umthombo wokukhanya, okuvumela ukukhanya okubonakalayo ukuthi kudlule engilazini ye-quartz kuya ku-photoanode. I-electrode yensimbi engagqwali engu-304 ixhunywe ku-photoanode ngentambo yethusi. Ngaphambi kokuhlolwa, i-electrode yensimbi engagqwali engu-304 yacwiliswa kusisombululo se-NaCl esingu-3.5% amahora ama-2 ukuqinisekisa isimo esizinzile. Ekuqaleni kokuhlolwa, lapho ukukhanya kuvuliwe futhi kucinywa, ama-electron avuselelwe e-photoanode afinyelela ebusweni bensimbi engagqwali engu-304 ngentambo.
Ekuhlolweni kobuningi be-photocurrent, ama-photoanode angu-304SS kanye ne-Ag/NiS/TiO2 abekwe kumaseli okugqwala kanye namaseli e-photoanode, ngokulandelana (Isithombe 3). Ubuningi be-photocurrent bulinganiswe ekusethweni okufanayo ne-OCP. Ukuze kutholakale ubuningi be-photocurrent bangempela phakathi kwensimbi engagqwali engu-304 kanye ne-photoanode, i-potentiostat yasetshenziswa njenge-ammeter yokumelana ne-zero ukuxhuma insimbi engagqwali engu-304 kanye ne-photoanode ngaphansi kwezimo ezingezona ezi-polarized. Ukuze kwenziwe lokhu, ama-electrode okubhekisela kanye nama-counter ekusethweni kokuhlola ancishisiwe, ukuze indawo yokusebenza ye-electrochemical isebenze njenge-ammeter yokumelana ne-zero engalinganisa ubuningi bamanje bangempela. I-electrode yensimbi engagqwali engu-304 ixhunywe phansi kwendawo yokusebenza ye-electrochemical, futhi i-photoanode ixhunywe ku-clamp ye-electrode esebenzayo. Ekuqaleni kokuhlolwa, lapho ukukhanya kuvulwa futhi kucinywa, ama-electron avuselelwe e-photoanode ngentambo afinyelela ebusweni bensimbi engagqwali engu-304. Ngalesi sikhathi, ushintsho ekubunjweni kwe-photocurrent ebusweni bensimbi engagqwali engu-304 lungabonakala.
Ukuze kuhlolwe ukusebenza kokuvikelwa kwe-cathodic kwama-nanocomposites ensimbi engagqwali engu-304, kuhlolwe izinguquko emandleni e-photoionization ensimbi engagqwali engu-304 kanye nama-nanocomposites, kanye nezinguquko ekubunjweni kwamanje kwe-photoionization phakathi kwama-nanocomposites kanye nezinsimbi ezingagqwali ezingu-304.
Ku-Fig. 4 kubonisa izinguquko kumandla okuvula wesekethe yensimbi engagqwali engu-304 kanye nama-nanocomposites ngaphansi kokukhanya okubonakalayo nangaphansi kwezimo ezimnyama. Ku-Fig. 4a kubonisa ithonya lesikhathi sokufakwa kwe-NiS ngokucwiliswa kumandla okuvula wesekethe, kanti ku-Fig. 4b kubonisa umphumela wokuhlushwa kwe-nitrate yesiliva kumandla okuvula wesekethe ngesikhathi sokunciphisa ukukhanya. Ku-Fig. 4a kubonisa ukuthi amandla okuvula wesekethe ye-NiS/TiO2 nanocomposite eboshwe ku-304 stainless steel ancishiswe kakhulu ngesikhathi isibani sivuliwe uma kuqhathaniswa ne-nickel sulfide composite. Ngaphezu kwalokho, amandla okuvula wesekethe aphansi kakhulu kunalawo e-nanowires e-TiO2 ahlanzekile, okubonisa ukuthi i-nickel sulfide composite ikhiqiza ama-electron amaningi futhi ithuthukisa umphumela wokuvikela i-photocathode kusuka ku-TiO2. Kodwa-ke, ekupheleni kokuvezwa, amandla okungenamthwalo akhuphuka ngokushesha abe amandla okungenamthwalo wensimbi engagqwali, okubonisa ukuthi i-nickel sulfide ayinawo umphumela wokugcina amandla. Umphumela wenani lemijikelezo yokufakwa kokucwiliswa ku-open circuit potential ungabonakala ku-Fig. 4a. Ngesikhathi sokufakwa esingu-6, amandla amakhulu e-nanocomposite afinyelela ku--550 mV uma kuqhathaniswa ne-calomel electrode egcwalisiwe, futhi amandla e-nanocomposite afakwe nge-factor engu-6 aphansi kakhulu kunalawo e-nanocomposite ngaphansi kwezinye izimo. Ngakho-ke, ama-nanocomposites e-NiS/TiO2 atholakale ngemuva kwemijikelezo yokufakwa engu-6 anikeze isivikelo se-cathodic esingcono kakhulu sensimbi engagqwali engu-304.
Izinguquko ku-OCP zama-electrode ensimbi engagqwali angu-304 anama-nanocomposites e-NiS/TiO2 (a) kanye nama-nanocomposites e-Ag/NiS/TiO2 (b) anokukhanya nangaphandle kokukhanya (λ > 400 nm).
Njengoba kuboniswe ku-Fig. 4b, amandla okuvula isekethe yensimbi engagqwali engu-304 kanye nama-nanocomposites e-Ag/NiS/TiO2 ancishiswe kakhulu lapho evezwa ekukhanyeni. Ngemva kokufakwa ebusweni kwama-nanoparticles esiliva, amandla okuvula isekethe ancishiswe kakhulu uma kuqhathaniswa nama-nanowires e-TiO2 ahlanzekile. Amandla e-nanocomposite ye-NiS/TiO2 aphansi kakhulu, okubonisa ukuthi umphumela wokuvikela we-cathodic we-TiO2 uthuthuka kakhulu ngemva kokufakwa kwama-nanoparticles e-Ag. Amandla okuvula isekethe anda ngokushesha ekupheleni kokuvezwa, futhi uma kuqhathaniswa ne-electrode ye-calomel egcwalisiwe, amandla okuvula isekethe angafinyelela ku--580 mV, okwakungaphansi kune-304 stainless steel (-180 mV). Lo mphumela ubonisa ukuthi i-nanocomposite inomphumela wokugcina amandla omangalisayo ngemva kokufakwa kwama-particles esiliva ebusweni bayo. Ku-Fig. 4b futhi kukhombisa umphumela wokugcwala kwe-nitrate yesiliva kumandla okuvula isekethe. Ekugcwalisweni kwe-nitrate yesiliva engu-0.1 M, amandla okukhawulela maqondana ne-electrode ye-calomel egcwalisiwe afinyelela ku--925 mV. Ngemva kwemijikelezo emine yokufaka, amandla ahlala ezingeni ngemuva kokufaka kokuqala, okubonisa ukuzinza okuhle kakhulu kwe-nanocomposite. Ngakho-ke, ekugxilweni kwe-nitrate yesiliva engu-0.1 M, i-nanocomposite ye-Ag/NiS/TiO2 ephumelayo inomphumela omuhle kakhulu wokuvikela i-cathodic ensimbi engagqwali engu-304.
Ukufakwa kwe-NiS ebusweni bezintambo ze-TiO2 nanowires kuyathuthuka kancane kancane ngokuhamba kwesikhathi sokufakwa kwe-NiS. Lapho ukukhanya okubonakalayo kushaya ubuso bentambo ye-nanowire, izindawo eziningi ezisebenzayo ze-nickel sulfide ziyakujabulela ukukhiqiza ama-electron, futhi amandla e-photoionization ancipha kakhulu. Kodwa-ke, lapho izinhlayiya ze-nickel sulfide zibekwe kakhulu ebusweni, i-nickel sulfide ekhungathekile iyancishiswa esikhundleni salokho, okungafaki isandla ekumuncweni kokukhanya. Ngemva kokuba izinhlayiya zesiliva zibekwe ebusweni, ngenxa yomphumela we-plasmon resonance wezingxenye zesiliva, ama-electron akhiqiziwe azodluliselwa ngokushesha ebusweni bensimbi engagqwali engu-304, okuholela emphumeleni omuhle kakhulu wokuvikela i-cathodic. Lapho izinhlayiya zesiliva eziningi kakhulu zibekwe ebusweni, izinhlayiya zesiliva ziba yindawo yokuhlanganisa ama-photoelectron kanye nezimbobo, okungafaki isandla ekwakhiweni kwama-photoelectron. Ekuphetheni, ama-nanocomposites e-Ag/NiS/TiO2 anganikeza isivikelo se-cathodic esingcono kakhulu sensimbi engagqwali engu-304 ngemuva kokufakwa kwe-nickel sulfide okuphindwe kasithupha ngaphansi kwe-nitrate yesiliva engu-0.1 M.
Inani lobuningi be-photocurrent limelela amandla okuhlukanisa ama-electron nama-hole akhiqizwa nge-photo, futhi uma ubukhulu be-photocurrent bukhulu, kulapho amandla okuhlukanisa ama-electron nama-hole akhiqizwa nge-photo aqina khona. Kunezifundo eziningi ezibonisa ukuthi i-NiS isetshenziswa kabanzi ekuhlanganiseni izinto ze-photocatalytic ukuthuthukisa izakhiwo ze-photoelectric zezinto kanye nokuhlukanisa imigodi15,16,17,18,19,20. UChen nabanye bafunde ama-graphene angenansimbi enhle kanye nama-composites e-g-C3N4 ahlanganiswe ne-NiS15. Ubukhulu obukhulu be-photocurrent ye-g-C3N4/0.25%RGO/3%NiS eguquliwe bungu-0.018 μA/cm2. UChen nabanye bafunde i-CdSe-NiS enobuningi be-photocurrent obungaba ngu-10 µA/cm2.16. ULiu nabanye bahlanganise i-composite ye-CdS@NiS enobuningi be-photocurrent obungu-15 µA/cm218. Kodwa-ke, ukusetshenziswa kwe-NiS kokuvikela i-photocathode akukabikwa. Esifundweni sethu, ubuningi be-photocurrent be-TiO2 banda kakhulu ngokuguqulwa kwe-NiS. Ku-Fig. 5 kukhombisa izinguquko kubuningi be-photocurrent bensimbi engagqwali engu-304 kanye nama-nanocomposites ngaphansi kwezimo zokukhanya okubonakalayo futhi ngaphandle kokukhanya. Njengoba kuboniswe ku-Fig. 5a, ubuningi be-photocurrent be-nanocomposite ye-NiS/TiO2 bukhula ngokushesha ngesikhathi ukukhanya kuvulwa, futhi ubuningi be-photocurrent buyakha, okubonisa ukugeleza kwama-electron avela ku-nanocomposite kuya phezulu nge-electrochemical workstation. 304 insimbi engagqwali. Ngemva kokulungiswa kwama-composites e-nickel sulfide, ubuningi be-photocurrent bukhulu kunobe-nanowires ze-TiO2 ezimsulwa. Ubuningi be-photocurrent be-NiS bufinyelela ku-220 μA/cm2, obuphindwe izikhathi ezingu-6.8 kunobe-nanowires ze-TiO2 (32 μA/cm2), lapho i-NiS icwiliswa futhi ifakwa izikhathi ezingu-6. Njengoba kuboniswe ku-Fig. 5b, ubuningi be-photocurrent phakathi kwe-nanocomposite ye-Ag/NiS/TiO2 kanye nensimbi engagqwali engu-304 babuphakeme kakhulu kunaphakathi kwe-TiO2 emsulwa kanye ne-nanocomposite ye-NiS/TiO2 lapho ivulwa ngaphansi kwesibani se-xenon. Ku-Fig. Isithombe 5b sibonisa nomphumela wobuningi be-AgNO ekubuneni kwe-photocurrent ngesikhathi sokunciphisa i-photoreduction. Ekubunjeni kwe-nitrate yesiliva engu-0.1 M, ubuningi bayo be-photocurrent bufinyelela ku-410 μA/cm2, obuphakeme ngokuphindwe ka-12.8 kunobe-nanowires ze-TiO2 (32 μA/cm2) kanye nobukhulu ngokuphindwe ka-1.8 kunobe-nanocomposites ze-NiS/TiO2. Insimu kagesi ye-heterojunction yakhiwa esibonakalayo se-nanocomposite ye-Ag/NiS/TiO2, esiza ukuhlukaniswa kwama-electron akhiqizwa yi-photo emigodini.
Izinguquko ekubunjweni kwe-photocurrent kwe-electrode yensimbi engagqwali engu-304 ene-(a) i-nanocomposite ye-NiS/TiO2 kanye ne-(b) i-nanocomposite ye-Ag/NiS/TiO2 ene-lighting kanye ne-inless (λ > 400 nm).
Ngakho-ke, ngemva kwemijikelezo eyi-6 yokucwiliswa kwe-nickel sulfide ku-nitrate yesiliva egxilile engu-0.1 M, ubuningi be-photocurrent phakathi kwama-nanocomposites e-Ag/NiS/TiO2 kanye nensimbi engagqwali engu-304 bufinyelela ku-410 μA/cm2, okuphakeme kunokwe-calomel egcwalisiwe. Ama-electrode afinyelela ku--925 mV. Ngaphansi kwalezi zimo, insimbi engagqwali engu-304 ehlanganiswe ne-Ag/NiS/TiO2 inganikeza isivikelo se-cathodic esingcono kakhulu.
Ku-Fig. 6 kukhombisa izithombe ze-surface electron microscope ze-nanowires ze-titanium dioxide ezimsulwa, ama-nanoparticles e-nickel sulfide ahlanganisiwe, kanye nama-nanoparticles esiliva ngaphansi kwezimo ezifanele. Ku-Fig. 6a, d kukhombisa ama-nanowires e-TiO2 ahlanzekile atholwe nge-anodization yesigaba esisodwa. Ukusatshalaliswa kobuso be-nanowires ze-titanium dioxide kuyafana, izakhiwo ze-nanowires ziseduze, futhi ukusatshalaliswa kosayizi we-pore kuyafana. Izibalo 6b kanye no-e ziyi-electron micrographs ye-titanium dioxide ngemuva kokuminywa okuphindwe kasithupha kanye nokufakwa kwama-composites e-nickel sulfide. Kusukela esithombeni se-electron microscopic esikhuliswe izikhathi ezingu-200,000 ku-Fig. 6e, kungabonakala ukuthi ama-nanoparticles e-nickel sulfide ahlanganisiwe afanayo futhi anosayizi omkhulu wezinhlayiya ongaba ngu-100–120 nm ububanzi. Amanye ama-nanoparticles angabonakala endaweni ye-nanowires, kanti ama-nanowires e-titanium dioxide abonakala ngokucacile. Ku-Fig. I-6c,f ikhombisa izithombe ezincane kakhulu zama-electron zama-nanocomposites e-NiS/TiO2 ekugxilweni kwe-AgNO okungu-0.1 M. Uma kuqhathaniswa ne-Figs. 6b kanye ne-fig. 6e, i-fig. 6c kanye ne-fig. 6f ikhombisa ukuthi ama-nanoparticles e-Ag abekwe ebusweni bezinto ezihlanganisiwe, kanti ama-nanoparticles e-Ag asatshalaliswa ngokulinganayo ngobubanzi obungaba ngu-10 nm. Ku-fig. 7 ikhombisa ingxenye ephambene yama-nanofilms e-Ag/NiS/TiO2 ebekwe emijikelezweni engu-6 ye-NiS dip deposition ekugxilweni kwe-AgNO3 okungu-0.1 M. Kusukela ezithombeni zokukhulisa okuphezulu, ubukhulu befilimu obulinganisiwe babungu-240-270 nm. Ngakho-ke, ama-nanoparticles e-nickel nesiliva sulfide ahlanganiswe ebusweni be-nanowires ze-TiO2.
Ama-nanocomposites e-TiO2 amsulwa (a, d), e-NiS/TiO2 anemijikelezo engu-6 ye-NiS dip deposition (b, e) kanye ne-Ag/NiS/NiS anemijikelezo engu-6 ye-NiS dip deposition ku-0.1 M AgNO3 SEM izithombe zama-nanocomposites e-TiO2 (c, e).
Ingxenye ephambene yama-nanofilms e-Ag/NiS/TiO2 ibekwe emijikelezweni eyi-6 ye-NiS dip deposition ekugxilweni kwe-AgNO3 okungu-0.1 M.
Ku-fig. 8 kukhombisa ukusatshalaliswa kobuso bezinto phezu kobuso be-nanocomposites ye-Ag/NiS/TiO2 etholakale emijikelezweni engu-6 ye-nickel sulfide dip deposition ekugxilweni kwe-nitrate yesiliva engu-0.1 M. Ukusatshalaliswa kobuso bezinto kubonisa ukuthi i-Ti, i-O, i-Ni, i-S kanye ne-Ag kutholakale. kusetshenziswa i-energy spectroscopy. Ngokuphathelene nokuqukethwe, i-Ti kanye ne-O yizinto ezivame kakhulu ekusatshalalisweni, kuyilapho i-Ni kanye ne-S cishe zifana, kodwa okuqukethwe kwazo kuphansi kakhulu kune-Ag. Kungafakazelwa futhi ukuthi inani lama-nanoparticles esiliva ahlanganisiwe ebusweni likhulu kunele-nickel sulfide. Ukusatshalaliswa okufanayo kwezinto ebusweni kubonisa ukuthi i-nickel kanye ne-silver sulfide ziboshwe ngokulinganayo ebusweni be-nanowires ye-TiO2. Ukuhlaziywa kwe-X-ray photoelectron spectroscopic kwenziwa futhi ukuze kuhlaziywe ukwakheka okuthile kanye nesimo sokubopha kwezinto.
Ukusatshalaliswa kwezinto (i-Ti, i-O, i-Ni, i-S, ne-Ag) zama-nanocomposites e-Ag/NiS/TiO2 ekugxilweni kwe-AgNO3 okungu-0.1 M kwemijikelezo engu-6 yokufakwa kwe-NiS dip.
Ku-Fig. Isithombe 9 sibonisa ama-spectra e-XPS ama-nanocomposites e-Ag/NiS/TiO2 atholakala kusetshenziswa imijikelezo engu-6 ye-nickel sulfide deposition ngokucwiliswa ku-0.1 M AgNO3, lapho i-Fig. 9a iyi-full spectrum, kanti amanye ama-spectra angama-high-resolution spectra ezinto. Njengoba kungabonakala ku-full spectrum ku-Fig. 9a, ama-absorption peaks e-Ti, O, Ni, S, kanye ne-Ag atholakale ku-nanocomposite, okufakazela ukuba khona kwalezi zinto ezinhlanu. Imiphumela yokuhlolwa yayihambisana ne-EDS. I-excess peak ku-Fig. 9a iyi-carbon peak esetshenziselwa ukulungisa amandla okubopha esampula. Ku-Fig. 9b kukhombisa i-high resolution energy spectrum ye-Ti. Ama-absorption peaks ama-orbital angu-2p atholakala ku-459.32 kanye no-465 eV, ahambisana nokumuncwa kwama-orbital e-Ti 2p3/2 kanye ne-Ti 2p1/2. Iziqongo ezimbili zokumunca zifakazela ukuthi i-titanium ine-valence ye-Ti4+, ehambisana ne-Ti ku-TiO2.
Ama-spectra e-XPS okulinganisa i-Ag/NiS/TiO2 (a) kanye nama-spectra e-XPS anesinqumo esiphezulu se-Ti2p(b), O1s(c), Ni2p(d), S2p(e), kanye ne-Ag 3d(f).
Ku-Fig. 9d kukhombisa i-high-resolution Ni energy spectrum eneziqongo ezine zokumunca ze-orbital ye-Ni 2p. Iziqongo zokumunca ku-856 kanye ne-873.5 eV zihambelana ne-orbital ye-Ni 2p3/2 kanye ne-Ni 2p1/2 8.10 ye-Ni, lapho iziqongo zokumunca zingezika-NiS. Iziqongo zokumunca ku-881 kanye ne-863 eV ze-nickel nitrate futhi zibangelwa yi-reagent ye-nickel nitrate ngesikhathi sokulungiselela isampula. Ku-Fig. 9e kukhombisa i-S-spectrum ene-resolution ephezulu. Iziqongo zokumunca ze-orbital ze-S 2p zitholakala ku-161.5 kanye ne-168.1 eV, ezihambisana ne-orbital ye-S 2p3/2 kanye ne-S 2p1/2 21, 22, 23, 24. Lezi ziqongo ezimbili zingezika-compounds ze-nickel sulfide. Iziqongo zokumunca ku-169.2 kanye ne-163.4 eV ze-reagent ye-sodium sulfide. Ku-Fig. I-9f ikhombisa i-Ag spectrum enesinqumo esiphezulu lapho iziqongo zokumuncwa kwesiliva ze-orbital ze-3d zitholakala ku-368.2 kanye no-374.5 eV, ngokulandelana, futhi iziqongo ezimbili zokumuncwa zihambisana nezindlela zokumuncwa ze-Ag 3d5/2 kanye no-Ag 3d3/212, 13. Iziqongo kulezi zindawo ezimbili zifakazela ukuthi izinhlayiya zesiliva zikhona esimweni sesiliva esiyisisekelo. Ngakho-ke, ama-nanocomposites akhiwa kakhulu yi-Ag, i-NiS kanye ne-TiO2, eyanqunywa yi-X-ray photoelectron spectroscopy, eyafakazela ukuthi izinhlayiya zesiliva ze-nickel kanye ne-silver sulfide zihlanganiswe ngempumelelo ebusweni bezintambo ze-TiO2.
Ku-Fig. 10 kukhombisa ama-spectra okukhanya asakazekile e-UV-VIS ama-nanowires e-TiO2 asanda kulungiswa, ama-nanocomposites e-NiS/TiO2, kanye nama-nanocomposites e-Ag/NiS/TiO2. Kungabonakala esithombeni ukuthi umkhawulo wokumuncwa kwama-nanowires e-TiO2 ungama-390 nm, futhi ukukhanya okumuncwayo kugxile kakhulu esifundeni se-ultraviolet. Kungabonakala esithombeni ukuthi ngemva kokuhlanganiswa kwama-nanoparticles e-nickel ne-silver sulfide ebusweni be-nanowires ye-titanium dioxide 21, 22, ukukhanya okumuncwayo kusakazeka esifundeni sokukhanya esibonakalayo. Ngesikhathi esifanayo, i-nanocomposite ikhuphule ukumuncwa kwe-UV, okuhlotshaniswa negebe elincane lebhendi le-nickel sulfide. Uma igebe lebhendi lincipha, kulapho isithiyo samandla sokushintsha kwe-elekthronikhi sincipha futhi izinga lokusetshenziswa kokukhanya liphakeme. Ngemva kokuhlanganisa ubuso be-NiS/TiO2 nama-nanoparticles esiliva, ukuqina kokumuncwa kanye nobude bokukhanya akuzange kukhuphuke kakhulu, ikakhulukazi ngenxa yomphumela we-plasmon resonance ebusweni be-nanoparticles esiliva. Ubude besikhathi sokumuncwa kwama-nanowires e-TiO2 abuthuthuki kakhulu uma kuqhathaniswa negebe elincane lebhendi lama-nanoparticles e-composite NiS. Ngamafuphi, ngemva kwama-nanoparticles e-composite nickel sulfide kanye nesiliva ebusweni bama-nanowires e-titanium dioxide, izici zayo zokumuncwa kokukhanya zithuthukiswa kakhulu, futhi ububanzi bokumuncwa kokukhanya bunwetshwa kusukela ku-ultraviolet kuya ekukhanyeni okubonakalayo, okuthuthukisa izinga lokusetshenziswa kwama-nanowires e-titanium dioxide.
Ama-spectra okukhanya asakazekile e-UV/Vis wezintambo ezintsha ze-TiO2, ama-nanocomposites e-NiS/TiO2, kanye nama-nanocomposites e-Ag/NiS/TiO2.
Ku-Fig. 11 kukhombisa indlela yokumelana nokugqwala kwe-Ag/NiS/TiO2 nanocomposites ngaphansi kokukhanya okubonakalayo. Ngokusekelwe ekusakazweni okungenzeka kwe-nanoparticles yesiliva, i-nickel sulfide, kanye ne-conduction band ye-titanium dioxide, kuphakanyiswa imephu engaba khona yendlela yokumelana nokugqwala. Ngenxa yokuthi amandla e-conduction band ye-nanosilver aphansi uma kuqhathaniswa ne-nickel sulfide, kanye nekhono le-conduction band ye-nickel sulfide aliphansi uma kuqhathaniswa ne-titanium dioxide, isiqondiso sokugeleza kwe-electron cishe siyi-Ag→NiS→TiO2→304 insimbi engagqwali. Lapho ukukhanya kukhanyiswa ebusweni be-nanocomposite, ngenxa yomphumela we-surface plasmon resonance ye-nanosilver, i-nanosilver ingakha ngokushesha imigodi nama-electron aphansi, futhi ama-electron aphansi ahamba ngokushesha esuka endaweni ye-valence band aye endaweni ye-conduction band ngenxa yokuvuselela. I-Titanium dioxide kanye ne-nickel sulfide. Njengoba ukuhanjiswa kwe-nanoparticles yesiliva kunembi kakhulu kune-nickel sulfide, ama-electron aku-TS yama-nanoparticles esiliva aguqulwa ngokushesha abe yi-TS ye-nickel sulfide. Amandla okuhambisa i-nickel sulfide anembi kakhulu kune-titanium dioxide, ngakho ama-electron e-nickel sulfide kanye nokuhanjiswa kwe-silver kuqongelela ngokushesha ku-CB ye-titanium dioxide. Ama-electron akhiqizwa nge-photogenerated afinyelela ebusweni bensimbi engagqwali engu-304 nge-titanium matrix, kanti ama-electron acebile ahlanganyela enkambisweni yokunciphisa i-oxygen ye-cathodic yensimbi engagqwali engu-304. Le nqubo yehlisa ukusabela kwe-cathodic futhi ngesikhathi esifanayo icindezela ukusabela kwe-anodic dissolving kwensimbi engagqwali engu-304, ngaleyo ndlela kubonakale ukuvikelwa kwe-cathodic kwensimbi engagqwali engu-304. Ngenxa yokwakheka kwensimu kagesi ye-heterojunction ku-Ag/NiS/TiO2 nanocomposite, amandla okuhambisa i-nanocomposite ashintshelwa endaweni engemihle kakhulu, okuthuthukisa ngempumelelo umphumela wokuvikela i-cathodic wensimbi engagqwali engu-304.
Umdwebo weskimu wenqubo yokulwa nokugqwala kwe-photoelectrochemical yama-nanocomposites e-Ag/NiS/TiO2 ekukhanyeni okubonakalayo.
Kulo msebenzi, ama-nanoparticles e-nickel ne-silver sulfide akhiwe phezu kwama-nanowires e-TiO2 ngendlela elula yokucwilisa kanye nokunciphisa ukukhanya. Uchungechunge lwezifundo mayelana nokuvikelwa kwe-cathodic kwama-nanocomposites e-Ag/NiS/TiO2 ensimbi engagqwali engu-304 lwenziwe. Ngokusekelwe ezicini ze-morphological, ukuhlaziywa kokwakheka kanye nokuhlaziywa kwezimpawu zokumuncwa kokukhanya, kwenziwa iziphetho ezilandelayo eziyinhloko:
Ngemijikelezo eminingana yokufakwa kwe-nickel sulfide engu-6 kanye nokuhlushwa kwe-nitrate yesiliva yokunciphisa i-photoreduction engu-0.1 mol/l, ama-nanocomposites e-Ag/NiS/TiO2 aphume abe nomphumela ongcono wokuvikela i-cathodic ensimbi engagqwali engu-304. Uma kuqhathaniswa ne-electrode ye-calomel egcwele, amandla okuvikela afinyelela ku--925 mV, kanti amandla okuvikela afinyelela ku-410 μA/cm2.
Insimu kagesi ye-heterojunction yakhiwa esibonakalayo se-nanocomposite se-Ag/NiS/TiO2, esithuthukisa amandla okuhlukanisa ama-electron nama-hole akhiqizwa nge-photo. Ngesikhathi esifanayo, ukusebenza kahle kokusetshenziswa kokukhanya kuyandiswa futhi ububanzi bokumuncwa kokukhanya buyandiswa kusukela esifundeni se-ultraviolet kuya esifundeni esibonakalayo. I-nanocomposite izoqhubeka nokugcina isimo sayo sokuqala ngokuqina okuhle ngemva kwemijikelezo emi-4.
Ama-nanocomposite e-Ag/NiS/TiO2 alungiselelwe ngokuhlola anomphezulu ofanayo futhi oqinile. Ama-nanoparticles e-nickel sulfide kanye nesiliva ahlanganiswe ngokulinganayo ebusweni be-nanowires ze-TiO2. Ama-nanoparticles e-cobalt ferrite kanye nesiliva ahlanzekile kakhulu.
U-Li, MC, Luo, SZ, Wu, PF kanye no-Shen, JN Umphumela wokuvikela we-Photocathodic wamafilimu e-TiO2 ensimbi yekhabhoni kuzixazululo ze-NaCl ezingu-3%. U-Li, MC, Luo, SZ, Wu, PF kanye no-Shen, JN Umphumela wokuvikela we-Photocathodic wamafilimu e-TiO2 ensimbi yekhabhoni kuzixazululo ze-NaCl ezingu-3%. Li, MC, Luo, SZ, Wu, PF & Shen, JN Эффект фотокатодной защиты пленок TiO2 для углеродистой стали в 3% растворах NaCl. U-Li, MC, Luo, SZ, Wu, PF kanye no-Shen, JN Umphumela wokuvikela i-Photocathode wamafilimu e-TiO2 ensimbi yekhabhoni kuzixazululo ze-NaCl ezingu-3%. Li, MC, Luo, SZ, Wu, PF & Shen, JN TiO2 薄膜在3% NaCl 溶液中对碳钢的光阴极保护效果。 Li, MC, Luo, SZ, Wu, PF & Shen, JN TiO2 薄膜在3% NaCl 溶液中对碳钢的光阴极保护效果。 Li, MC, Luo, SZ, Wu, PF & Shen, JN Фотокатодная защита углеродистой стали тонкими пленками TiO2 в 3% растворе NaCl. Ukuvikelwa kwe-Li, MC, Luo, SZ, Wu, PF kanye noShen, JN kwe-photocathode yensimbi yekhabhoni enamafilimu amancane e-TiO2 kusisombululo se-NaCl esingu-3%.I-Electrochem. Acta 50, 3401–3406 (2005).
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UYun, H., Li, J., Chen, HB kanye noLin, CJ Ucwaningo mayelana ne-N, S kanye ne-Cl-modified nano-TiO2 coating yokuvikela ukugqwala kwensimbi engagqwali. UYun, H., Li, J., Chen, HB kanye noLin, CJ Ucwaningo mayelana ne-N, S kanye ne-Cl-modified nano-TiO2 coating yokuvikela ukugqwala kwensimbi engagqwali.UYun, H., Li, J., Chen, HB kanye noLin, SJ Uphenyo lwezimbozo ze-nano-TiO2 eziguqulwe nge-nitrogen, i-sulfur kanye ne-chlorine ukuze kuvikelwe ukugqwala kwensimbi engagqwali. Yun, H., Li, J., Chen, HB & Lin, CJ N、S 和Cl 改性纳米二氧化钛涂层用于不锈钢腐蚀防护的研究。 UYun, H., uLi, J., uChen, uHB kanye noLin, uCJ N、S noCl Yun, H., Li, J., Chen, HB & Lin, CJ Покрытия N, S и Cl, модифицированные нано-TiO2, для защиты от коррозии нержавеющей стали. UYun, H., Li, J., Chen, HB & Lin, CJ Nano-TiO2 modified N, S kanye ne-Cl coatings zokuvikela ukugqwala kwensimbi engagqwali.I-Electrochem. Umqulu 52, 6679–6685 (2007).
UZhu, YF, Du, RG, Chen, W., Qi, HQ kanye noLin, CJ Izakhiwo zokuvikela ze-Photocathodic zamafilimu enethiwekhi ye-titanate nanowire anezinhlangothi ezintathu alungiselelwe ngendlela ehlanganisiwe ye-sol-gel kanye ne-hydrothermal. UZhu, YF, Du, RG, Chen, W., Qi, HQ kanye noLin, CJ Izakhiwo zokuvikela ze-Photocathodic zamafilimu enethiwekhi ye-titanate nanowire anezinhlangothi ezintathu alungiselelwe ngendlela ehlanganisiwe ye-sol-gel kanye ne-hydrothermal. Zhu, YF, Du, RG, Chen, W., Qi, HQ & Lin, CJ золь-гель и гидротермическим методом. UZhu, YF, Du, RG, Chen, W., Qi, HQ kanye noLin, CJ Izakhiwo zokuvikela ze-Photocathodic zamafilimu anetha anezinhlangothi ezintathu ezintambo ezincane ze-titanate ezilungiselelwe ngendlela ehlanganisiwe ye-sol-gel kanye nendlela ye-hydrothermal. Zhu, YF, Du, RG, Chen, W., Qi, HQ & Lin, CJ 溶胶-凝胶 kanye Zhu, YF, Du, RG, Chen, W., Qi, HQ & Lin, CJ. Izakhiwo zokuvikela ze-消铺-铲和水热法发气小水小水化用线线电视电器电影电影电影电影电影. Zhu, YF, Du, RG, Chen, W., Qi, HQ & Lin, CJ гидротермическими методами. UZhu, YF, Du, RG, Chen, W., Qi, HQ kanye noLin, CJ Izakhiwo zokuvikela ze-Photocathodic zamafilimu amancane enethiwekhi ye-titanate nanowire anezinhlangothi ezintathu alungiselelwe yi-sol-gel kanye nezindlela ze-hydrothermal.I-Electrochemistry. xhumana 12, 1626–1629 (2010).
ULee, JH, uKim, SI, uPark, SM kanye noKang, M. Uhlelo lwe-pn heterojunction lwe-NiS-sensitive TiO2 photocatalytic lokunciphisa i-carbon dioxide ibe yi-methane ngempumelelo. ULee, JH, uKim, SI, uPark, SM kanye noKang, M. Uhlelo lwe-pn ​​heterojunction lwe-NiS-sensitive TiO2 photocatalytic lokunciphisa i-carbon dioxide ibe yi-methane ngempumelelo.ULee, JH, uKim, SI, uPark, SM, noKang, M. Uhlelo lwe-pn-heterojunction NiS photocatalytic lwe-TiO2 oluzwelayo ukuze kuncishiswe kahle i-carbon dioxide ibe yi-methane. Lee, JH, Kim, SI, Park, SM & Kang, M. 一种pn 异质结NiS 敏化TiO2 光催化系统，用于将二氧化碳高效光还效光还。 Lee, JH, Kim, SI, Park, SM & Kang, M.ULee, JH, uKim, SI, uPark, SM, noKang, M. Uhlelo lwe-pn-heterojunction NiS photocatalytic lwe-TiO2 oluzwelayo ukuze kuncishiswe kahle i-carbon dioxide ibe yi-methane.izinto zobumba. Incazelo. 43, 1768–1774 (2017).
UWang, QZ nabanye. I-CuS kanye ne-NiS zisebenza njenge-cocatalyst ukuthuthukisa ukuvela kwe-hydrogen ene-photocatalytic ku-TiO2. Incazelo. J.Hydro. Energy 39, 13421–13428 (2014).
ULiu, Y. kanye noTang, C. Ukuthuthukiswa kokuvela kwe-photocatalytic H2 phezu kwamafilimu e-nano-sheet e-TiO2 ngokulayisha ama-nanoparticles e-NiS ebusweni. ULiu, Y. kanye noTang, C. Ukuthuthukiswa kokuvela kwe-photocatalytic H2 phezu kwamafilimu e-nano-sheet e-TiO2 ngokulayisha ama-nanoparticles e-NiS ebusweni.ULiu, Y. kanye noTang, K. Ukuthuthukiswa kokukhishwa kwe-photocatalytic H2 kumafilimu e-nanosheet e-TiO2 ngokulayishwa kwendawo kwama-nanoparticles e-NiS. U-Liu, Y. & Tang, C. 通过表面负载NiS 纳米颗粒增强TiO2 纳米片薄膜上的光催化产氢。 ULiu, Y. kanye noTang, C.ULiu, Y. noTang, K. Kuthuthukiswe ukukhiqizwa kwe-hydrogen ene-photocatalytic kumafilimu amancane ama-nanosheet e-TiO2 ngokufaka ama-nanoparticles e-NiS phezu komhlaba.las. J. Ifiziksi. Amakhemikhali. A 90, 1042–1048 (2016).
UHuang, XW kanye noLiu, ZJ Ucwaningo lokuqhathanisa isakhiwo kanye nezakhiwo zamafilimu e-nanowire asekelwe ku-Ti–O alungiselelwe ngezindlela ze-anodization kanye ne-chemical oxidation. UHuang, XW kanye noLiu, ZJ Ucwaningo lokuqhathanisa isakhiwo kanye nezakhiwo zamafilimu e-nanowire asekelwe ku-Ti–O alungiselelwe ngezindlela ze-anodization kanye ne-chemical oxidation. U-Huang, XW & Liu, ZJ Сравнительное исследование структуры и свойств пленок нанопроводов на основе Ti-O, полученных методами анодирования и хиголеской. UHuang, XW kanye noLiu, ZJ Ucwaningo oluqhathanisayo lwesakhiwo kanye nezakhiwo zamafilimu e-nanowire e-Ti-O atholwe ngezindlela ze-anodizing kanye ne-chemical oxidation. U-Huang, XW & Liu, ZJ 阳极氧化法和化学氧化法制备的Ti-O 基纳米线薄膜结构和性能的比较研。 U-Huang, XW & Liu, ZJ 阳极oxidation法和chemicaloxidation法preparation的Ti-O基基基小线thin yesakhiwo sefilimu kanye nempahla yocwaningo lokuqhathanisa. U-Huang, XW no-Liu, ZJ Сравнительное исследование структуры и свойств тонких пленок из нанопроволоки на основе Ti-O, полученных анодированием кимнихический песни. UHuang, XW kanye noLiu, ZJ Ucwaningo oluqhathanisayo lwesakhiwo kanye nezakhiwo zamafilimu amancane e-nanowire e-Ti-O alungiselelwe yi-anodization kanye ne-chemical oxidation.J. Alma mater. ubuchwepheshe besayensi 30, 878–883 (2014).
Ama-photoanode e-TiO2 ahlanganiswe noLi, H., Wang, XT, Liu, Y. kanye noHou, BR Ag kanye ne-SnO2 ukuze kuvikelwe i-304SS ngaphansi kokukhanya okubonakalayo. Ama-photoanode e-TiO2 ahlanganiswe noLi, H., Wang, XT, Liu, Y. kanye noHou, BR Ag kanye ne-SnO2 ukuze kuvikelwe i-304SS ngaphansi kokukhanya okubonakalayo. U-Li, H., Wang, XT, Liu, Y. & Hou, BR Ag kanye ne-SnO2 совместно сенсибилизировали фотоаноды TiO2 для защиты 304SS в видимом свете. ULi, H., Wang, XT, Liu, Y. kanye noHou, BR Ag kanye noSnO2 basebenzise ama-photoanode e-TiO2 ukuze bavikele i-304SS ekukhanyeni okubonakalayo. Li, H., Wang, XT, Liu, Y. & Hou, BR Ag 和SnO2 共敏化TiO2 光阳极，用于在可见光下保护304SS. ULi, H., uWang, uXT, uLiu, uY. kanye noHou, uBR Ag U-Li, H., Wang, XT, Liu, Y. & Hou, BR Фотоанод TiO2, совместно сенсибилизированный Ag и SnO2, для защиты 304SS в видимом свете. ULi, H., Wang, XT, Liu, Y. kanye noHou, BR I-photoanode ye-TiO2 ehlanganiswe ne-Ag kanye ne-SnO2 ukuze kuvikelwe ukukhanya okubonakalayo kwe-304SS.i-koros. isayensi. 82, 145–153 (2014).
I-Wen, ZH, Wang, N., Wang, J. & Hou, BR Ag kanye ne-CoFe2O4 zihlanganise i-nanowire ye-TiO2 ezwelayo ukuze kuvikelwe i-photocathodic ye-304 SS ngaphansi kokukhanya okubonakalayo. I-Wen, ZH, Wang, N., Wang, J. & Hou, BR Ag kanye ne-CoFe2O4 zihlanganise i-nanowire ye-TiO2 ezwelayo ukuze kuvikelwe i-photocathodic ye-304 SS ngaphansi kokukhanya okubonakalayo.UWen, ZH, Wang, N., Wang, J. kanye noHowe, i-BR Ag kanye ne-CoFe2O4 zihlanganiswe ndawonye ne-TiO2 nanowire ukuze kuvikelwe i-304 SS photocathode ekukhanyeni okubonakalayo. Wen, ZH, Wang, N., Wang, J. & Hou, BR Ag 和CoFe2O4 共敏化TiO2 纳米线，用于在可见光下行对304 SS 进光阴极保。 Wen, ZH, Wang, N., Wang, J. & Hou, BR AgUWen, ZH, Wang, N., Wang, J. kanye noHowe, i-BR Ag kanye ne-CoFe2O4 bahlanganise ama-nanowire e-TiO2 ukuze kuvikelwe i-304 SS photocathode ekukhanyeni okubonakalayo.Incazelo. J. I-Electrochemistry. isayensi. 13, 752–761 (2018).
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