锌锡复合掺杂纳米二氧化钛的光催化性能研究  

Photocatalytic degradation performance of nanometer Titania of Zn^(2+) and Sn^(4+) composite doping

作　　者：王京城[1] 孙晓艳 裴欣[3] 

机构地区：[1]辽宁省环境科学研究院 [2]辽宁省环境保护局,辽宁沈阳110033 [3]沈阳建筑大学市政与环境工程学院,辽宁沈阳110168

出　　处：《气象与环境学报》2008年第4期23-26,共4页Journal of Meteorology and Environment

摘　　要：采用溶胶—凝胶法制备了Zn2+、Sn4+复合掺杂的TiO2光催化剂,通过XRD、TEM、UV—Vis测试手段对样品进行分析,以对硝基苯酚为研究对象,对其进行光催化降解。结果表明:复合掺杂Zn2+、Sn4+提高了催化剂对波长在200—450 nm范围内的光的吸光度,发生"红移"。在氙灯激发下,其催化活性优于纯TiO2。Photocatalyst TiO2 of Zn^2＋ and Sn^4＋ composite doping was prepared by the sol-gel method. And the samples were analyzed by XRD,TEM and UV-Vis methods. As the target contamination, P-nitrophenol was degraded by TiO2 catalyst. The results show that Zn^2 ＋ and Sn^4 ＋ composite doping can improve the absorbency from 200 nm to 450 nm, and it causes the red-shift. By irradiation of xenon lamp, the photocatalytic activity is better than that of pure TiO2.

关 键 词：锌锡复合掺杂 纳米 二氧化钛 对硝基苯酚 光催化 

分 类 号：TQ426.6[化学工程]