可见光光催化机理研究进展

整理文档很辛苦,赏杯茶钱您下走!

免费阅读已结束,点击下载阅读编辑剩下 ...

阅读已结束,您可以下载文档离线阅读编辑

资源描述

20073153INDUSTRIALCATALYSISMar.2007VoI.15No.32006-09-21050065532005A1070200219821968E-maiIcefpeng@scut.edu.cn510640TO0340643.31A1008-1143200703-0005-07Researchesinphotocatalyticmechanismundervisible-lightHUANCLeiPENCFengSchooIofChemicaIandEnergyEngineeringSouthChinaUniversityofTechnoIogyGuangzhou510640GuangdongChinaAbstractHeterogeneousphotocataIysisundervisibIe-Iighthasbeenafocusforresearches.Dye-photoac-tivationion-dopingsemiconductorcompositingandtheincreasingcrystaIdefectshavebeenusedtoen-hancethephototcataIyticactivityundervisibIe-IightirradiationandsomemechanismsforphotocataIysisundervisibIe-Iightwereproposed.ThemechanismsfortransmissionandseparationoftheeIectron-cavitypairswerediscussed.KeywordsphotocataIysisvisibIeIightphotocataIyticmechanismCLCnumberTO0340643.31DocumentcodeAArticleID1008-1143200703-0005-071972FujishimaA1nTi02!400nm5%400~750nm43%23-45671980BardAJ8Ti02--9-10620073!1965BourdonJ11212613!#!214/TiO215-17RuN3530nmRu-NCS!!TiO2LiuGM18-25TiO2O2O2O2HO2HO2H2O2H2O2HO2OH18-19HO2H2O2OHCO2H2O20-22LiJ24Febpy2+3BOHFebpy3+3O-2Febpy3=OLiXZ2524-DCP/LlievV26PcTiO2OHOHOH!#$TiO2BessekhouadY613Bi2S3/TiO2CdS/TiO2Cu2O/TiO2Bi2O3/TiO2ZnMn2O4/TiO2TiO2TiO2TiO2TiO2200737TiO2-TiO2TiO2TiO2-TiO2KimHG27PCDPCafe2O4nPbBi2Nb1.9W0.1O9p-n!420nmPCDnpPCafe2O4nPbBi2Nb1.9W0.1O9p-n--!AsahiRTiO2ZnO!#$ShanW28GaInAs2001AsahiR5TiO2LDAtheIocaIdensityapproximationCNfPSTiO2DOSsdensitiesofstatesNN2pO2pTiO21TiO22CBMconductionbandmini-mumTiO2H2/H2O3TiO2TiO2BarboriniE292eVTiO2HurSG30BaIn1/3Pb1/3M1/3*O3M*=NbTaPbSnZouZG31Bi2MNbO7M=AI3+Ga3+In3+InMO4M=Nb5+Ta5+BiMO4M=Nb5+Ta5+2.7~2.4eVH2O2!#!KischH322.2.1TiO233-34IrieH35TiO2AsahiR820073NOO2pN2pTiO2-XNXTiO2NOLincgrenT36NChoiW4TiO2/Mn++e-cbMn-1++1Mn++h+vbMn+1++2TiO237V4+Mn3+Ru3+Fe3+Cr3+Mn+/Mn-1+EcbM+/Mn+1+Evbc-cc-ctransitioninthecrystaIfieIc2.2.2N38-39S40C41F42H2TiO2ZnOCronemeyerDC7973KH2TiO2TiO20.75~1.18eVTiO2TiO2TiO22.02-2.45eV506-614nmNakamuraI43H2TiO2600nmESRg=2.004NONO3-TiO2CoInG44TiO2700CTiO2TiO2TiO2TiO2LiD45ZnO0.05%ZnOZnOZnOZnOZnOh!2.5eVh!0.8eVZnOTiO2ZnOZnOTiO246-47200739!TiO248-51TiO2TiO2--LiXZ48H2O2H2O2/TiO2ChoY49TiO2CCi4320~500nmTiO2AgriosAG50-51245-TiO2245-TiO2P25KimS52TiO24-4-CP4-CP420nmCO2TiO2#Ti-O-Ph4-PC4-PCTiO2O2/O-2OH-/H2O0.28eV+2.27eVpH=7532.55eV486nm486nm54-55540nm56-58TiO2#1FujishimaAHondaK.EiectrochemicaiphotocataiysisofwateratasemiconductoreiectrodeJ.Nature1972238535837.2reganBGratzeiM.Aiow-costhigh-efficiencysoiarceiibasedondye-sensitizedcoiioidaiTiO2fiimsJ.Nature19913536346737.3KarakitsouKEVerykiosXE.EffectsofaitervaientcationdopingoftitaniaonitsperformanceasaphotocataiystforwatercieavageJ.JPhysChem19939761184.4ChoiWTerminAHoffmannMR.Theroieofmetaiiondopantsinguantum-sizedTiO2Correiationbetweenphoto-reactivityandchargecarrierrecombinationdynamicsJ.JPhysChem1994985113669.5AsahiRMorikawaTOhwakiTetai.Visibie-iightpho-tocataiysisinnitrogen-dopedtitaniumoxidesJ.Science20012935528269.6BessekhouadYRobertDWeberJV.Bi2S3/TiO2andCdS/TiO2heterojunctionsasanavaiiabieconfigurationforphotocataiyticdegradationoforganicpoiiutantJ.JPhoto-chemPhotobioiAChem20041633569.7CronemeyerDC.InfraredabsorptionofreducedrutiieTiO2singiecrystaisJ.PhysRev195911351222.8BardAJ.PhotoeiectrochemistryJ.Science1980207139.9.TiO2-SO2J.2003244243.102007310.J.200222106.11BourdonJ.Spectraisensitizationofchemicaieffectsinsoi-idsJ.JPhysChem1965693705.12GratzeiM.PhotoeiectrochemicaiceiisJ.Nature20014146861338.13BessekhouadYRobertDWeberJV.Photocataiyticac-tivityofCu2O/TiO2Bi2O3/TiO2andZnMn2O4/TiO2het-erojunctionsJ.CataiToday20051013-4315.14WangPZakeeruddinSMMoserJEetai.Astabieguasi-soiid-statedye-sensitizedsoiarceiiwithanam-phiphiiicrutheniumsensitizerandpoiymergeieiectroiyteJ.NatureMateriais200326402.15AsburyJBHaoEWangYOetai.Bridgeiength-de-pendentuitrafasteiectrontransferfromrepoiypyridyicom-piexestonanocrystaiiineTiO2thinFiimsstudiedbyfemto-secondInfraredspectroscopyJ.JPhysChemB20001045011957.16SauvGCassMECoiaG.Dyesensitizationofnano-crystaiiinetitaniumdioxidewithosmiumandrutheniumpoiypyridyicompiexesJ.JPhysChemB2000104296821.17.M.2005.18LiuGMZhaoJCHidakaH.ESRspin-trappingdetec-tionofradicaiintermediatesintheTiO2-assistedphoto-oxi-dationofsuiforhodamineBundervisibieirradiationJ.JPhotochemPhotobioiAChem20001331-283.19LiuGMLiXZhaoJCetai.Photooxidationmecha-nismofdyeaiizarinredinTiO2dispersionsundervisibieiiiuminationanexperimentaiandtheoreticaiexaminationJ.JMoiCataAChem20001531-2211.20WuTXLiuGMZhaoJCetai.Photoassisteddegra-dationofdyepoiiutants.!.seif-photosensitizedoxidativetransformationofrhodamineBundervisibieiightirradiationinagueousTiO2dispersionsJ.JPhysChemB1998102305845.21LiuGMZhaoJCShenTetai.TiO2-assistedphotodeg-radationofdyepoiiutants.Adsorptionanddegradationki-neticsofeosininTiO2dispersionsundervisibieiightirradi-ationJ.AppiCataiBEnviron1998151-2147.22LiuGMWuTXZhaoJCetai.Photo-assistedphoto-degradationofdyepoiiutants#.Irreversibiedegradationofaiizarinredundervisibieiightirradiationinair-eguiii-bratedagueousTiO2dispersionsJ.EnvironSciTech199933122081.23ZhaoWChenCCMaWHetai.Efficientphotoin-ducedconversio

1 / 11
下载文档,编辑使用

©2015-2020 m.777doc.com 三七文档.

备案号:鲁ICP备2024069028号-1 客服联系 QQ:2149211541

×
保存成功