超声-Cd^(2+)/N共掺杂TiO_2可见光催化降解苯酚研究  

Preparation of Cd^(2+)/N Co-doped TiO_2 and Degradation of Phenol in Water with Visible Photocatalysis and Ultrasound

作　　者：吴国枝[1] 吴纯德[1] 张捷鑫[1] 朱文明[1] 

机构地区：[1]华南理工大学环境科学与工程学院,广州510640

出　　处：《环境科学与技术》2007年第9期1-3,共3页Environmental Science & Technology

基　　金：国家自然科学基金项目(20277011)

摘　　要：以钛酸丁酯为原料,用溶胶-凝胶法合成Cd^(2+)/N共掺杂的二氧化钛,采用X光衍射仪对其粉体的物相进行了表征。进而研究此合成掺杂光催化剂在US(超声波)/Vis(可见光)下降解水中苯酚的降解效果,结果表明,在Cd^(2+)、N共掺杂的二氧化钛作为催化剂的情况下,可见光光催化降解苯酚有一定的效果;超声波的加入能够明显提高可见光光催化降解苯酚的降解率。Cd^(2+)/N co-doped TiO_2 were prepared by Sol-Gel method. The size structure appearance and thermostabile properties were analyzed by TEM and XRD.Degradation of phenol was observed under visible light and ultrasound with co-doped TiO_2.Results showed that the effect of degradation with co-doped TiO_2 under visible light was 3 times of that with pure TiO_2 after 1 hour,and ultrasonic wave can greatly increase the visible light induced photocatalytic degradation of phenol.

关 键 词：超声波 可见光光催化 苯酚 掺杂二氧化钛 

分 类 号：X131[环境科学与工程—环境科学]