Membrane Science and Technology

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Preparation and Application of Bipolar Membrane of Extracting Potassium Selectively from Seawater

Authors： XIAO Yan-chun1,2 ,CHEN Biao1,HUANG Jing1,LIU Ming-hua3

Units： 1Institute of Agri- engineering Technology,Fujian Academy of Agricultural Science Fuzhou 350003;

KeyWords： 18–Crown–6; IIBPM; Preparation; Characterization; Application

ClassificationCode：TQ443.3

year,volume(issue):pagination： 2015, 35(3):85-91

Abstract：

Sodium carboxymethyl cellulose (CMC) and Chitosan (CS) were prepared as natural materials,then modified by 18–crown–6 (18–C–6) and glutaraldehyde (GA), respectively. mCMC+18–C–6/mCS ion imprinted bipolar membrane(IIBPM)was prepared by a paste method.The IIBPM was characterized by moisture content,Infrared Spectroscopy (IR), transmembrane voltage, AC impedance,thermal stability,respectively. The results showed that the property of IIBPM was improved after modified by 18–C–6.mCMC+18–C–6/mCS IIBPM was applied to extract potassium resources in Ningde city. When the penetration time was 150 min, the permeability rate of K+ through the mCMC+18–C–6/mCS IIBPM was up to 95%.

Funds：

福建省省属公益类优势领域项目(2014R1015-13)；2014年度农科院院青年科技创新项目（2014CX-14、2014CX-13）

AuthorIntro：

第一作者简介：肖艳春（1984-），女，工学硕士，福建省农业科学院，助理研究员，主要从事农业环境保护技术研究。 *通讯作者：陈彪，副研究员，0591-87869461，E-mail：ny_chenbiao@sohu.com。]*，

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