Preparation and Pb2+-Detection Performance of Composite Membranes Based on Smart Microspheres |
Authors: YAN Peijie, WANG Wei, XIE Rui, JU Xiaojie, LIU Zhuang, CHU Liangyin |
Units: School of Chemical Engineering,Sichuan University |
KeyWords: Smart composite membrane; Trace signal detection; Smart microsphere; Pb2+; Crown ether |
ClassificationCode:TQ317 |
year,volume(issue):pagination: 2018,38(4):1-7 |
Abstract: |
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. |
Funds: |
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) |
AuthorIntro: |
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 |
Reference: |
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