光解水催化剂介绍photocatalysts.ppt

《光解水催化剂介绍photocatalysts.ppt》由会员上传分享，免费在线阅读，更多相关内容在行业资料-天天文库。

1、赵宇黄子健王宏宇2016年11月23日Photo-catalystsforwatersplittingcontents1、Basicprinciplesanddevelopinghistory2、Strategiestoimprovethephotocatalyticactivity3、TheoutlooksofthephotocatalyticmaterialsfirstdiscoveryandbasicprinciplesFirstdiscoveredat1972initiatedbythedem

2、onstrationofphoto-electrochemical(PEC)well-knownastheHonda-Fujishimaeffectfirstdiscoveryandbasicprinciplesenergybandtheoryfull-occupiedhalf-occupiedunoccupiedbandgapCBVBdifferentenergylevelscorrespondwithdifferentbandssemi-conductorsareveryusefulinthisa

3、reaK.Maeda/JournalofPhotochemistryandPhotobiologyC:PhotochemistryReviews12(2011)237–268firstdiscoveryandbasicprinciplesHalf-reactionsusingsacrificialelectrondonorsandacceptorstestreactionsforoverallwatersplittingfirstdiscoveryandbasicprinciplesspecificn

4、eedsthatmustbemet1、thebandgaprestriction2、migratewithoutrecombination3、inhibitthebackwardreactionK.Maeda/JournalofPhotochemistryandPhotobiologyC:PhotochemistryReviews12(2011)237–268generallytobeparticlesexample:Pt-TiO2at1980withNaOHloadedonthecocatalyst

5、firstdiscoveryandbasicprinciplesmajordevelopinghistoryspecialstructures—thewell-knownlamellarparticlemajordevelopinghistoryspecialstructures—perovskitesCubicPerovskitesDoublePerovskitesmajordevelopinghistoryAurivilliusphasesDion-JacobsonphasesRuddleson-

6、Popperphasesspecialstructures—perovskitesmajordevelopinghistoryamazingeffectsofthenetworkofoctahedralunitsofmetalcationsprobablyfromitsuniqueelectronicpropertiesspecialstructures—perovskitesmajordevelopinghistoryspecialstructures：Ruddlesden–Poppertypela

7、yeredperovskitesofA2La2Ti3O10[32]T.Takata,K.Shinohara,A.Tanaka,M.Hara,J.N.Kondo,K.Domen,J.Photochem.Photobiol.A:Chem.106(1997)45.aseriesoflayeredperovskiteshaveAQYshigherthan20%underUVirradiationmajordevelopinghistoryspecialstructures—perovskites:tunnel

8、structuredBaTi4O9andNa2Ti6O9built-inpolarizationfieldpentagonalprismtunnel[26]Y.Inoue,T.Niiyama,Y.Asai,K.Sato,J.Chem.Soc.,Chem.Commun.(1992)579.majordevelopinghistoryspecialelectronicstructures—d10-Typemetaloxidesthepoorsymmetryo