作　　者： ; ; ; ;

机构地区： 台州学院

出　　处： 《水处理技术》 2011年第8期31-34,共4页

摘　　要： 采用阳极氧化法制备TiO2纳米管阵列,通过湿化学方法掺杂氮银元素,形成银、氮共掺杂TiO2纳米管阵列,研究其光催化降解染料废水性能及其动力学过程。结果表明,经过450℃煅烧的催化剂,在碱性条件下,掺银量为0.5 mol.L-1、掺氮为25%时,催化效果最好,光照射3 h后,亚甲基蓝溶液降解率达到99.78%。该催化剂稳定性好,可重复使用。 TiO2 nanotubes array was prepared by anodic oxidation,and the nitrogen and silver co-doped TiO2 nanotubes arrays were fabricated by a wet chemical methods,and the photocatalytic properties of degradation dyes wastewaters and the kinetics process were studied.The results showed that the catalytic activity was the best when the doped of silver was 0.5 mol·L-1 and the doped of nitrogen was 25% in the alkalescency condition at calcinated 450 ℃,and the degradation of the methylene blue attained to 99.78% after 180 minutes irradiation.The catalysts showed good stability and could reuse.

关 键 词： 阳极氧化 掺杂 纳米管阵列 光催化

领　　域： [化学工程] [环境科学与工程]