人造沸石负载型TiO_2光催化剂的制备与光降解甲基橙的性能研究  

Study on Preparation of Artificial Zeolite Loading Titanium Dioxide Photocatalyst and Its Catalytic Performance on Methyl Orange

作　　者：郭延红[1] 郭莉[1] 赵峭梅[1] 

机构地区：[1]延安大学化工学院陕西省化学反应工程省级重点实验室,陕西延安716000

出　　处：《化学与生物工程》2006年第1期13-15,共3页Chemistry & Bioengineering

基　　金：陕西省教育厅科研基金资助项目(03J5014)

摘　　要：采用溶胶-凝胶法制备了人造沸石负载型TiO2光催化剂，用XRD分析了其物相结构，以紫外灯为实验光源、甲基橙溶液为目标降解物对其进行了光降解性能的研究，考察了TiO2负栽量、催化剂用量、热处理温度等不同条件下催化刑的光催化活性。结果表明，焙烧温度为240℃、TiO2负载量为33．3％、催化剂用量为2～3g·L^-1、紫外光连续照射5hN，甲基橙溶液的脱色率可达到83．8％。The TiO2/AZ photocatalyst was prepared by a sol-gel process. The samples were characterized by XRD technique after heating treatment at different temperature. The photocatalytic activity of the sample was examined by using methyl orange as model contaminant under ultraviolet lamp as light source. The results indicated that the best loading capacity and calcining temperature was 33. 3%,240℃ respectively. When the TiO2/AZ concentration was 2-3g·L^-1,the photodegradation rate was 83.8% after illuminated for five hours.

关 键 词：二氧化钛 人造沸石 光催化 甲基橙 

分 类 号：TQ174.75[化学工程—陶瓷工业]