Photoassisted defluorination of fluorinated substrates and pharmaceuticals by Ga2O3 and TiO2 for aquatic remediation

摘要：

　　Persistent fluorinated substances,such as the fluorine-bearing pharmaceutical drugs Fluoxetine (FLX; Prozac) and Fluvoxamine maleate (FOM) together with several other substrates (fluorobenzoic acid and fluoroaliphatic model compounds) were photochemically defluorinated and degraded under UVC illumination in relatively good yields in the presence of a wide band gap metal oxide (β-Ga2O3) in heterogeneous aqueous media.Formation of fluoride ions increased with increasing illumination time under an inert nitrogen atmosphere,although the transformation of the aromatic moiety was slower under these conditions,but nonetheless did occur.The optimal amount of β-Ga2O3 loading for defluorination was 50 mg in aqueous media (0.10 mM,100 mL); the optimal pH to defluorinate FLX was pH 6.

作者: Hisao Hidaka Yoshihiro Mitsutsuka Tohru Tsukamoto

作者单位: Meisei University, Hino, Tokyo, Japan

会议类型: 国际会议

会议名称: 2013 International Symposium on Environmental Science and Technology(2013环境科学与技术国际会议)

会议地点: 大连

会议语种:英文

页码: 728-728

在线出版日期: 2013-06-04（万方平台首次上网日期，不代表论文的发表时间）