人工晶体学报2011，Vol.40Issue(6)：1607-1611,5.
可见光响应型ZnO/Bi2O3复相光催化剂的制备及其性能研究
Preparation and Properties of ZnO/Bi2O3 Multiphase Photocatalytic Materials Response to Visible Light
摘要
Abstract
Using Zn(Ac)2 -2H,O and Bi (NO3)3 · 5H2O as the main raw materials, ZnO/Bi2O3 multiphase photocatalytic materials response to visible light with excellent photocatalytic properties were successfully synthesized by sol-gel method. The as-prepared samples were characterized by XRD and SEM, their photocatalytic activities and reusability were investigated under the conditions of different light source using the methyl orange as a target pollutant. The effects of initial synthesis conditions and light source on photocatalytic properties were also studied. The results show that the gel prepared under the condition of a Zn/Bi molar ration of 1:1 and concentration of 0.Q5 mol/L were calcined at 600 Tl for 2 h , the as-prepared samples show to be compose of wurtzite ZnO, monoclinic a-Bi2O3, triclinic a)-Bi2O3. The decolorization rate of methyl orange were 95.73%, 68.36% under irradiation of 16 W UV and 500 W halogen lamp for 2.5 h, however under sunlight, that was only 53.8%, but continue to be placed on the balcony for 24 h, the decolorization rate is up to 97.6%. Li addition, the catalyst was reused the sixth times, decolorization rate was still up to 90%, indicating catalyst has a high reusability rate.关键词
ZnO/Bi2O3/光催化/溶胶-凝胶法Key words
ZnO/Bi2O3/ photocatalytic/ sol-gel method分类
数理科学引用本文复制引用
龙腾发,李磊,颜昌琪,何星存,陈孟林,钟山..可见光响应型ZnO/Bi2O3复相光催化剂的制备及其性能研究[J].人工晶体学报,2011,40(6):1607-1611,5.基金项目
珍稀濒危动植物生态与环境保护省部共建教育部重点实验室基金项目(桂科能1001Z005) （桂科能1001Z005）
广西师范大学青年骨干教师科研基金 （）
