表面活性剂对水溶液中萘普生光解行为的影响  

Effects of surfactants on photo-degradation of naproxen in aqueous solution

作　　者：黎展毅[1] 刘国光[1] 金小愉 谢艳[1] 温小情 LI Zhanyi;LIU Guoguang;JIN Xiaoyu;XIE Yan;WEN Xiaoqing(School of Environmental Science and Engineering,Guangdong University of Technology,Guangzhou Guangdong 510006)

机构地区：[1]广东工业大学环境科学与工程学院,广东广州510006

出　　处：《环境污染与防治》2018年第3期270-273,共4页Environmental Pollution & Control

基　　金：国家自然科学基金资助项目(No.21377031);广东省科技发展专项(No.2013B020800009)

摘　　要：为探究水体中表面活性剂对萘普生(NPX)的光解行为影响,研究了不同类型的表面活性剂存在下的NPX光解行为。结果表明,NPX的吸收峰主要在200~250nm处,与十二烷基苯磺酸钠(SDBS)、吐温-80(Tween-80)的吸收峰基本重合,但与十六烷基三甲基溴化铵(CTAB)的吸收峰基本没有重叠。CTAB为阳离子型表面活性剂,对NPX的光解产生促进作用;SDBS为阴离子型表面活性剂,Tween-80为非离子型表面活性剂,对NPX的光解产生抑制作用,且SDBS的抑制作用更强。NPX的光解能力受pH的影响表现为酸性>碱性>中性,且CTAB存在时光解能力更强。Effects of surfactants on photo-degradation of naproxen(NPX)in aqueous solution were investigated using different surfactants.Results showed that NPX absorption peak were at 200-250 nm,overlapped with an anionic surfactant sodium dodecyl benzene sulfonate(SDBS)and a non-ionic surfactant Tween-80,but a cationic surfactant cetriamonium bromide(CTAB).CTAB enhanced the photo-degradation of NPX,while SDBS and Tween-80 not.The inhibition of SDBS was stronger than Tween-80.The effect of pH on NPX photo-degradation showed acidic condition>basic condition>central condition.NPX photo-degradation was enhanced when the presence of CTAB.

关 键 词：表面活性剂 萘普生 光解 十六烷基三甲基溴化铵 

分 类 号：X52[环境科学与工程—环境工程]