几种外加试剂对TiO_2光催化降解吡啶的影响  

Effect of Regents on Photocatalytic Degradation of Pyridine Solution with TiO_2

作　　者：沈昱[1] 于丽华[1] 徐锁洪[1] 

机构地区：[1]大连交通大学环境与化学工程学院,辽宁大连116028

出　　处：《大连铁道学院学报》2006年第4期86-89,共4页Journal of Dalian Railway Institute

摘　　要：以钛酸四丁酯为原料,用溶胶-凝胶法制备TiO2,在UV-TiO2体系中对吡啶进行光催化降解,考察了集中外加试剂对TiO2光催化降解吡啶的影响.结果表明:H2O2、Cu2++I-可影响吡啶光催化反应速率,S2O82-、IO4-、Ag+能加快吡啶光催化反应速率.TiO2 was used to degrade methyl orange solution with ultraviolet radiation. The effect of several regents on photocatalytic degradation of pyridine solution was investigated in details. The results reveal that additions of H2O2 and Cu^2＋ ＋ I^- can affect the degradation rate of pyridine, adding S2Os^2 -, IO4^ and Ag^＋ can accelerate the degradation rate of pyridine. Further attention should be focus on the effect of ions on the photooxidation of dyes in practice.

关 键 词：TIO2 光催化 吡啶 外加试剂 

分 类 号：X703[环境科学与工程—环境工程]