膜科学与技术

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Formation of micro reaction locations and its effect on the properties of polymer membranes

Authors： Yuqing Zhang*, Ming Yong, Shuai Sun

Units： School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072

KeyWords： inorganic functional material, non-stoichiometric material, solid super acid, micro reaction locations

ClassificationCode：TQ316.6

year,volume(issue):pagination： 2018,38(3):134-143

Abstract：

The formation of micro reaction locations (MRLs) and its effect on the properties of polymer membranes were studied. Though the performance of polymer membranes can be enhanced by adding functional inorganic materials, further enhancement is limited because there are few Lewis acid sites and hydroxide radicals on the surface of these inorganic functional materials. In pursuit of better performance, nonstoichiometric inorganic functional materials with various point defects and numerous exposed hydroxide radicals were used as filler to improve the hydrophilicity and antifouling properties of the membranes. However, the above methods just doped inorganic functional materials into polymer membranes by physical interaction on the interface between aqueous solution and the membrane, without any chemical interaction. In order to further enhance anti-fouling property and hydrophilicity of membranes, the membranes should be modified by doping novel small size functional materials, which can form MRLs inside channels and on the surface of the membrane to effectively degrade organic, inorganic pollutants and microbes.

Funds：

国家自然科学基金(21676180), 天津市科技支撑重点项目(15ZCZDSF00160), 天津市科技兴海计划 (KJXH2014-05)

AuthorIntro：

张裕卿，博士(后)，教授，从事化工功能材料及在化工分离、环境、能源和生物医药等方面的研究工作。Tel：86-22-13602077041，E-mail：zhangyuqing@tju.edu.cn

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