氧化铋光催化剂.docx

氧化铋光催化剂
Selective preparation of Bi2O3 visible light-driven photocatalyst by dispersant and (Bi2(C2O4)3Á7H2O)andmicrorod-likehy-dratedbismuthoxalate((BiOHC2O4)2ÁH2O)byhydrothermalpro-cesseswithdifferentsolventandobtainedvariousmorphologicala-(AO7)dyeindicatedthatthehoneycombbrushlikea-Bi2O3synthesizedbysinteringhydratedbismuthoxalateat300°Cwasthemostef -cient[11].TherearealsoreportsaboutcontrollablepreparationofBi2O3photocatalystsviaadjustingdispersantdosage[12,13].Forexample,(PVP)surfactantandmicrosizedBi2O3rodswithoutPVP,degradationofmethylorange(MeO)showedthatthephotocatalystpreparedinpresenceofPVPhadbetterphotocatalyticactivitythanthatpreparedwithoutthesur-factant[12]..:+862227408813;fax:+862227403389.










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underdifferentpHvaluesanddifferentdosesoflysinedispersantandstudiedeffectofthesesynthesisparametersonmorphologyoftheas--itybydegradingRhBindicatedthatmesh-likenano akesBi2O3ob-[13].WeiLiproposedasimplemethodtopreparesphericalmonodisperseBi2O3nanoparticlesinpresenceofpolyethyleneglycol(PEG4000)dispersantunderlowtemperatureanddiscussedin uenceofpreparationconditionssuchasconcentrationo