光催化氧化法处理高聚物废水的研究  

A Study of Photocatalytic Degradation of Polymer in Wastewater

作　　者：吴缨[1] 范崇政[2] 

机构地区：[1]合肥学院化学与材料工程系,安徽合肥230022 [2]中国科学技术大学化学物理系,安徽合肥230022

出　　处：《化学世界》2007年第12期730-733,共4页Chemical World

摘　　要：以纳米锐钛矿型TiO2为光催化剂,对高聚物聚乙二醇水溶液进行光催化降解实验。生成物CO2的量及反应物剩余率与反应时间的关系表明该组反应为零级反应,且催化反应速率与平均相对分子质量成反比。根据热重分析、红外光谱的检测结果,对聚乙二醇光催化氧化反应的机理进行了探讨。The photocatalytic degradation of polyethylene glycol （PEG） was investigated using nano anatase TiO2 as the photocatalyst. The change of the amount of CO2 and the reactant with reaction time indicated that this was a reaction of zero order and the degradation rate of PEG was reciprocally-related with the molecular weight of PEG. The mechanism of oxidation of PEG was studied by meano of TG and FT IR.

关 键 词：聚乙二醇 纳米二氧化钛 光催化 

分 类 号：X703[环境科学与工程—环境工程]