Photodegradation of Bisphenol A Induced by Metal Ions in Aqueous Solution in the Presence of Ascorbic Acid  

作　　者：PENG Zhang＇e ZHANG Xu YANG Liu WU Feng DENG Nansheng 

机构地区：[1]School of Resources and Environmental Sciences, Wuhan University, Wuhan 430079, Hubei, China

出　　处：《Wuhan University Journal of Natural Sciences》2008年第1期107-112,共6页武汉大学学报（自然科学英文版）

基　　金：Supported by the National Natural Science Foundation of China (20177017, 20477031)

摘　　要：The photodegradation of bisphenol A （BPA） in aqueous solution containing metal ions and ascorbic acid （AsA） was investigated. After strong irradiation, the aqueous solution containing AsA and Cu^2＋ could produce hydroxyl radicals that induced the photodegradation of BPA. The photodegradation efficiency of BPA in the solution containing 70 μmol·L^1 Cu^2＋ and 15 mg·L^1 AsA reached 59% at pH 6.0 after 4 hours irradiation with high pressure mercury lamp. The photodegradation efficiency of BPA reached 10% after 4 hours irradiation with daylight lamp in the presence of 70 μmol·L^1 Cu^2＋ and 15 mg·L^1 ascorbic acid. BPA was not degraded in the aqueous solution only containing AsA or Cu^2＋. The BPA photodegradation in aqueous solution containing AsA and Fe^3＋ was weaker than in aqueous solution that containing AsA and Cu^2＋ at the same concentration. This work showed a new route of the BPA photodegradation in aqueous environment.The photodegradation of bisphenol A （BPA） in aqueous solution containing metal ions and ascorbic acid （AsA） was investigated. After strong irradiation, the aqueous solution containing AsA and Cu^2＋ could produce hydroxyl radicals that induced the photodegradation of BPA. The photodegradation efficiency of BPA in the solution containing 70 μmol·L^1 Cu^2＋ and 15 mg·L^1 AsA reached 59% at pH 6.0 after 4 hours irradiation with high pressure mercury lamp. The photodegradation efficiency of BPA reached 10% after 4 hours irradiation with daylight lamp in the presence of 70 μmol·L^1 Cu^2＋ and 15 mg·L^1 ascorbic acid. BPA was not degraded in the aqueous solution only containing AsA or Cu^2＋. The BPA photodegradation in aqueous solution containing AsA and Fe^3＋ was weaker than in aqueous solution that containing AsA and Cu^2＋ at the same concentration. This work showed a new route of the BPA photodegradation in aqueous environment.

关 键 词：bisphenol A PHOTODEGRADATION metal ions hydroxyl radicals 

分 类 号：X131[环境科学与工程—环境科学]