第43卷第3期2023年3月Vol.43,No.3Mar.,2023环境科学学报ActaScientiaeCircumstantiaeCeO2@C@NiO构筑及其光催化降解罗丹明B的研究谭贺云,肖忠连,蒋森杰,孙巧萍,郝仕油*浙江师范大学行知学院,生化学院,金华321004摘要:通过蒸发溶剂法制备CeO2⸱xH2O@AO7@Ni2+前驱体,在惰性气体中煅烧前驱体制备CeO2@C@NiO材料,并以罗丹明B(RhB)为探针分子考察CeO2@C@NiO的光催化活性.结果表明,CeO2@C@0.01NiO对RhB的光催化降解效果最好.同时,利用XRD、PL、FT-IR、XPS等技术对样品结构性能进行表征,结果表明,较多碳键的形成有利于光电子和空穴分离;碳层具有优异的导电性,可降低CeO2和NiO之间的电荷转移阻力,并提高催化剂对可见光的吸收;NiO可作为电子转移载体,有效抑制光生电子-空穴复合.关键词:CeO2@C@NiO;构筑;罗丹明B;光催化;电子-空穴对文章编号:0253-2468(2023)03-0077-12中图分类号:O614.13,X703文献标识码:AConstructionofCeO2@C@NiOanditsphotocatalyticdegradationofRhodamineBTANHeyun,XIAOZhonglian,JIANGSenjie,SUNQiaoping,HAOShiyou*XingzhiCollege,CollegeofChemistryandLifeSciences,ZhejiangNormalUniversity,Jinhua321004Abstract:Inthisstudy,CeO2⸱xH2O@AO7@Ni2+precursorwaspreparedbyanevaporationsolventmethod,andCeO2@C@NiOwasobtainedbycalcinationoftheprecursorunderinertatmosphere.RhodamineB(RhB)wasusedastheprobemoleculetoinvestigatethephotocatalyticactivityofCeO2@C@NiOandtheresultsillustratedthatCeO2@C@0.01NiOperformedthebestphotocatalyticefficiency.TheobtainedmaterialswerecharacterizedbyXRD,PL,FT-IR,XPS,etc.,andtheresultsshowedthatcarbonbondswereconducivetotheseparationofphotoelectronandhole.ThecarbonlayerwithanexcellentelectricalconductivitycanreducethechargetransferresistancebetweenCeO2andNiOandimprovetheabsorptionofvisiblelightoftheresultedsample.Moreover,NiOcouldbeusedaselectrontransfercarrierandcouldeffectivelyinhibittherecombinationofphotogeneratedelectron-hole.Keywords:CeO2@C@NiO;construction;RhB;photocatalysis;electron-holepair1引言(Introduction)染料及其副产物具有致突变、致毒和致癌等特性,且水溶性很高,难以通过常规方法去除,是主要的环境污染源之一.因此,染料废水净化对于维持社会健康发展...