雌酮在铁(Ⅲ)-草酸盐配合物体系中的光降解  

Photodegradation of estrone in water by Fe(Ⅲ)-oxalate system

作　　者：陈勇[1] 张长波[1] 吴峰[1] 邓南圣[1] 

机构地区：[1]武汉大学资源与环境科学学院,武汉430079

出　　处：《环境污染治理技术与设备》2006年第3期45-47,共3页Techniques and Equipment for Environmental Pollution Control

基　　金：国家自然科学基金资助项目(20177017);武汉大学青年博士基金资助项目

摘　　要：以125W高压汞灯为光源，研究了水中雌酮（E1）在铁（Ⅲ）-草酸盐体系中的光降解；考察了初始pH值、铁（Ⅲ）／草酸盐配比、E1初始浓度对E1光降解的影响。结果表明，铁（Ⅲ）／草酸盐体系能引发E1的光降解。在pH=3．5，Fe（Ⅲ）／Ox配比为10／120／zmol／L时，2mg／LE1光照160min可以降解59％。在pH3-6范围内，pH为3～4时E1降解效率最高；在2-10mg／L范围内，光降解效率随水溶液中E1初始浓度的增加而降低。Photodegradation of estrone （ E1 ） in water by Fe （ Ⅲ ）-oxalate system was studied under a 125 W high-pressure mercury lamp （λ≥365nm）. The influence of initial pH value, initial concentration of E1 and Fe（ Ⅲ ）-oxalate ratios on photodegradation efficiency of E1 were discussed in detail. The results show that Fe（ Ⅲ ）-oxalate system can induce photodegradation of E1 efficiently. 59% of E1 can be degradaded after 160 min radiation in the solution containing Fe（Ⅲ ）-oxalate 10/120μmol/L at pH 3.5. The optimum pH for the degradation of E1 in water is between 3 and 4 over pH range of 3 ～ 6 ; the photodegradation efficiency decreases with increasing the initial concentration of El.

关 键 词：雌酮(E1) 光降解铁(Ⅲ)-草酸盐配合物 羟基自由基 

分 类 号：X131.2[环境科学与工程—环境科学]