Njengoba indawo ezungezile iwohloka, abantu banaka kakhulu ukuvikelwa kwemvelo.Ezinye izindlela zokwelapha zamanzi angcolile angokwemvelo zinzima ukuhlangabezana nezidingo zokuthuthukiswa ngenxa yemikhiqizo eminingi etholakalayo, ukwelapha okuyinkimbinkimbi ngemva kokwelashwa, ukungcoliswa kwesibili nokunye ukulinganiselwa.Ubuchwepheshe be-Photocatalytic oxidation buye bathola ukunakwa okukhulayo ngezinzuzo zabo ezivelele ezifana nokusetshenziswa kwamandla okuphansi, izimo zokusabela okuthambile, ukusebenza okulula, futhi akukho ukungcola kwesibili. 

I-Semiconductor photocatalysis isho ukuthi i-semiconductor catalyst ikhiqiza amapheya e-electron-hole ngaphansi kwesenzo sokukhanya okubonakalayo noma ukukhanya kwe-ultraviolet.I-O2, H2I-O kanye nama-molecule angcolile akhangisiwe endaweni ye-semiconductor amukela ama-electron akhiqizwe isithombe noma izimbobo, futhi uchungechunge lokusabela kwe-redox luyenzeka.Kuyindlela ye-photochemical yokwehlisa ukungcola okunobuthi kube izinto ezingenabuthi noma ezinobuthi obuncane.Le ndlela ingenziwa ekamelweni lokushisa, ingasebenzisa ukukhanya kwelanga, inohlu olubanzi lwemithombo ye-catalyst, ayibizi, ayinobuthi, izinzile, futhi isetshenziswa kabusha, akukho ukungcola kwesibili nezinye izinzuzo.Njengamanje, ama-photocatalyst amaningi alulaza ukungcola kwe-organic ayizinto ze-N-type semiconductor, njenge-TiO.2, ZnO, CdS, WO, SnO2, Fe2O3, njll.

Eminyakeni yamuva nje, njengendlela ephumelelayo, ubuchwepheshe be-photocatalytic bunomphumela omuhle wokwelapha ezintweni ezingcolisa imvelo.Phakathi kwazo, i-semiconductor heterogeneous photocatalysis isibe ubuchwepheshe obusha obudonsa amehlo kakhulu ngoba ingakwazi ukuvuselela ngokuphelele futhi yonakalise izinto ezihlukahlukene eziphilayo nezingaphili emoyeni ongcolile kanye namanzi angcolile.Lobu buchwepheshe bungalulaza ngokuphelele ukungcola okuningi kwemvelo ku-CO2, H2O, C1-, P043- nezinye izinto ezingaphili, ukunciphisa kakhulu inani lengqikithi ye-organic (TOC) yohlelo;ukungcola okuningi okungaphili njenge-CN-, NOx, NH3, H2S, njll. futhi kungehliswa ngokusabela kwe-photocatalytic.

Phakathi kwama-photocatalyst amaningi e-semiconductor, i-titanium dioxide ne-nano cuprous oxide bezilokhu ziwumnyombo wocwaningo lwe-photocatalysis ngenxa yekhono lawo eliqinile le-oxidizing, umsebenzi ophezulu we-catalytic, nokuzinza okuhle.Ochwepheshe abaningi bakholelwa ukuthi uCu2I-O inamathemba amahle okusebenza ekonakalisweni kwe-photocatalytic yezinto ezingcolisa izinto eziphilayo, futhi kulindeleke ukuthi ibe isizukulwane esisha sama-photocatalyst we-semiconductor ngemva kwe-titanium dioxide.Cu2I-O nano inezinto zamakhemikhali ezizinzile kanye nekhono eliqinile lokuxilisa ngaphansi kokukhanya kwelanga, okungagcina kukhiphe ukungcola okuphilayo emanzini ukuze kukhiqizwe i-CO.2kanye no-H2O. Ngakho-ke, nano Cu2I-O ifaneleka kakhulu ekwelashweni okuthuthukisiwe kwamanzi angcolile odayi ahlukahlukene.Abacwaningi basebenzise i-nano Cu2O ukucekelwa phansi kwe-photocatalytic ye-methylene eluhlaza okwesibhakabhaka, njll., futhi kuzuze imiphumela emihle. 

Eminyakeni yakamuva,i-cuprous oxide nanoparticlesziye zasetshenziswa kabanzi ekuhlanzeni amanzi angcolile kanye nobuchwepheshe bokuhlanza.Uma kuqhathaniswa nobunye ubuchwepheshe bendabuko bokuhlanza amanzi, banezinzuzo zokusebenza kahle okuphelele, izindleko eziphansi, ukuzinza nokusebenzisa ukukhanya kwelanga, futhi banamathemba amahle nabanzi.I-TiO2ijwayele ukusetshenziselwa ukugeza indle ngokukhanya kwelanga.Kodwa-ke, le nto idinga ukusebenza kwe-ultraviolet futhi inezinkinga eziningi.Ngakho-ke, ukukhanya okubonakalayo njengomthombo wamandla alula wokuhlanza indle bekulokhu kuwumgomo oqhutshwa ososayensi.

I-Guangzhou Hongwu Material Technology Co., Ltd. inokunikezwa okuzinzile kwesikhathi eside kwe-cuprous oxide (Cu2O) nanoparticles ngamaqoqo anokuthengiswa okuqondile kwasefekthri, ukuqinisekiswa kwekhwalithi, kanye nentengo evumayo.I-Hongwu Nano ilindele ukubambisana nawe.

 


Isikhathi sokuthumela: Jan-18-2022

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