Fe^3＋-TiO2／AC光催化剂的制备及其光催化性能  

Preparation and Photocatalytic Capability on Fe^(3+)-TiO_2/AC

作　　者：谷冲[1] 于春玲[1,2] 周咏梅[1] 董晓丽[1] 王少君[1] 王岩[1] 

机构地区：[1]大连工业大学化学与材料学院,辽宁大连116034 [2]清华大学化学系,北京100084

出　　处：《环境科学与技术》2009年第5期57-61,共5页Environmental Science & Technology

基　　金：国家重点基础发展计划(2003CB615805);辽宁省科学技术基金项目资助(1050300);辽宁省教育厅科学计划项目资助(202073411)

摘　　要：以活性炭(AC)为载体,通过溶胶-凝胶法制备了Fe3+离子掺杂的TiO2/活性炭(Fe3+-TiO2/AC)负载型光催化剂,通过SEM、XRD、UV-Vis等手段对光催化剂进行了表征。以125W高压汞灯作为光源,通过对罗丹明B的光降解反应,主要考察了温度对Fe3+-TiO2/AC复合体的光催化活性的影响。结果表明,温度在600℃条件下焙烧的Fe3(+0.15%)-TiO2/AC具有最好的光催化活性。Complex photocatalyst of Fe^3＋--doped nano-sized titanium dioxide was prepared by sol-gel process via the cartier of activated carbon. As-prepared catalyst was then characterized by SEM, XRD and UV-Vis for detailed morphology, crystallization and optic property respectively. Photocatalytic activity of Fe^3＋-TiO2/AC was investigated by degradation reaction of Rhodamine B radiated with mercury lamp as light source. Effects of heat treatment temperature on photoactivity of Fe^3＋-TiO2/AC were studied. Results showed that the catalyst calcined at 600℃ held a higher photocatalytic activity.

关 键 词：溶胶-凝胶法 Fe3+-TiO2/AC 光催化 罗丹明B 

分 类 号：X131[环境科学与工程—环境科学] O647[理学—物理化学]