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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，汪伟，谢锐，巨晓洁，刘壮，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

DOI号：

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-冠-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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