文档介绍：330· 石油化丁 PETR0CHEMICALTECHN0L0GY 2013年第42卷第3期光敏化Ag/TiO2催化剂的制备及其催化性能徐志兵,严家平, (,安徽淮南232001; 钮志远。,万正强 ,安徽安庆246011) [摘要]采用溶胶一凝胶法和水热法制备~'Ag/TiO催化剂,并对该催化剂试样进行了XRD和TEM表征。表征结果显爪,纳米 Ag/TiO催化剂颗粒的直径在5~20am之间,催化剂***@Ag纳米颗粒包裹在TiO。颗粒内部。将Ag/TiO催化剂在叶绿素提取液巾浸泡24h,制成光敏化Ag/TiO催化剂。以cr溶液为研究对象,分别在紫外光和可见光下考察了纳米TiO、纳米Ag/TiO,、光敏化TiO:和光敏化Ag/TiO:催化剂的光催化性能。实验结果表明,与其他3种催化剂相比,光敏化Ag/TiO催化剂光催化还原 Cr6的性能最好,特别是在可见光下,光敏化Ag/TiO催化剂光催化还原Cr”150min后,% [关键词]光敏化;叶绿素;银/二氧化钛催化剂;六价铬离子还原[文章编号]1000—8144(2013)03—0330—04 [中图分类号] [文献标志码]A PreparationandPropertiesofPhotosensitizedAg/TiO2Catalyst XuZhibing'2YanJiaping NiuZh~uan。,WanZhengqiang2 (,AnhuiUniversityofScienceandTechnology,HuainanAnhui232001,China ,AnqingNormalUniversity,AnqingAnhui246011,China) lAbstractJAg/TiO2catalystswerepreparedbyasol-gelmethodandahydrothermalmethod,and particleswerebetween5nmand20nm,andtheAgnanoparticleswereenwrappedintheTiO2crystal —catalyticactivityofTiO2,Ag/TiO2,phot0sensitizedTiO2 andphotosensitizedAg/TiO2catalystsforthereductionofCrinCrsolutionunderUVorvisible —catalyticactivityofthep