摘要
制备高活性可见光响应型掺钒TiO2光催化剂,以荧光灯为光源,光催化降解亚甲基蓝为模型反应,对可见光下TiO2的催化活性进行评价。研究了掺钒TiO2制备方法、掺钒量及氧化剂对光催化氧化的影响。结果表明,溶胶-凝胶法制备的TiO2催化活性较高,且工序简单,钒离子掺杂均匀;掺钒能使TiO2具有可见光响应,最佳掺钒量为1%;外加氧化剂H2O2能提高掺钒TiO2催化活性。
Vanadium test on photoeatalytie doped TiO2 was prepared by sol-gel method and degrading of methylene blue （MB） under visible common deposition method. The light was carried out using TiO2 as catalyst and fluorescence light as simulation light resource. The effects of preparation methods, vanadium dosage and additional oxidant on photocatalytic oxidation were investigated. It＇ s found that the sol-gel method is easy to control, V is well-proportioned in sample and photocatalytic activity of TiO2 is high. TiO2 have visible light response by vanadium doped, the best vanadium dosage was 1%, the additional oxidant H2O2 can improve vanadium doped TiO2 photocatalytic activity.
出处
《应用化工》
CAS
CSCD
2006年第2期117-119,共3页
Applied Chemical Industry
关键词
二氧化钛
掺钒
可见光
光催化活性
titanium dioxide
vanadium doped
visible light
photocatalytic activity
