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智能微球复合膜的制备及其Pb2+检测性能研究
作者:颜培洁  伟*   巨晓洁   褚良银 
单位:四川大学化学工程学院 
关键词:智能复合膜 痕量检测 智能微球 铅离子 冠醚 
分类号:TQ317
出版年,卷(期):页码:2018,38(4):1-7
摘要:

 通过将Pb2+响应性聚(N-异丙基丙烯酰胺-共聚-苯并-18--6-丙烯酰胺)智能微球结合至尼龙6/聚醚砜复合膜的膜孔中作为Pb2+响应型智能开关,成功构建了一种能检测痕量Pb2+浓度的高灵敏智能微球复合膜;系统研究了智能微球的形貌结构及Pb2+响应性,确定了37 oC时其Pb2+响应性能最佳;系统研究了智能微球复合膜的形貌结构及Pb2+检测性能,发现其检测限可低至10-7 M,低于工业废水中Pb2+含量标准,展现出高灵敏Pb2+检测特性。研究结果为制备新型高灵敏Pb2+浓度智能检测系统提供了新思路。

 A novel type of smart-microsphere-based nylon-6/polyethersulfone membrane is developed by incorporating Pb2+-responsive poly(N-isopropylacrylamide-co-benzo-18-crown-6- acrylamide) microspheres in the membrane pores for highly-sensitive detection of trace Pb2+.  The morphology, structure and Pb2+-responsive property of the microspheres are systematically investigated.  The results show that the microspheres can exhibit the best Pb2+-responsive property at 37 oC.  Meanwhile, the morphology, structure and Pb2+-detection performance of the smart-microsphere-based membrane are systematically studied.  The results show that the Pb2+-detection limit of the membrane can be as low as 10-7 M, lower than the standard of Pb2+ for industrial wastewater indicating highly-sensitive Pb2+-detection.  This work provides new opportunities for fabricating novel highly-sensitive Pb2+-detection systems.

基金项目:
国家自然科学基金项目(21490582)、教育部创新团队发展计划滚动支持项目(IRT_15R48)
作者简介:
第一作者介绍:颜培洁(1992-),女,山东泰安人,硕士研究生,主要研究方向为化工新技术,E-mail:415999369@qq.com. *通讯作者,E-mail:wangwei512@scu.edu.cn
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