碳纳米管改性TiO_2的光催化性能  

Study on the photocatalytic character of the CNT doped TiO_2 catalyst

作　　者：詹雪艳[1] 宋丹丹[1] 

机构地区：[1]华中师范大学化学学院,湖北武汉430079

出　　处：《化学研究与应用》2003年第4期471-474,共4页Chemical Research and Application

基　　金：湖北省重点基金计划项目(2000J001)资助

摘　　要：本文研究碳纳米管改性TiO2光催化剂的制备和影响其光催化性能的因素。实验结果表明,CNT的加入方法,CNT的含量,催化剂的灼烧温度等均影响光催化剂的光催化性能。制备的CNT TiO2光降解低浓度的甲胺膦农药(40 71mg/L)具有很好的效果,光催化降解过程符合一级反应动力学方程。Specific surface area, pore structure and its adsorption behaviors of CNT were characterized.CNTTiO2 was prepared by using solgel method to enhance the catalytic activity of TiO2. The factors influencing its photocatalytic character and degradation of methamidophos were discussed in this paper.As a result, the CNT doped methods,CNT content, and calcination temperature affect the photocatalytic character of CNTTiO2. CNTTiO2 was used for degradation of methamidophos (initial concentration is 4071mg/L)in aqueous solution, and the results showed that the photocatalyst has high catalytic activity and the procedure of photocatalytic degradation fits the firstorder kinetic relationship well.In addition,CNTTiO2 is stable and not inclined to aggregate.

关 键 词：碳纳米管 改性 TIO2 制备 光催化性能 光催化降解 甲胺膦 污染治理 

分 类 号：O643.36[理学—物理化学] X592[理学—化学]