Property characterization and mechanism analysis on organic fouling of structurally different anion exchange membranes in electrodialysis

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 环境水质学国家重点实验室

	Property characterization and mechanism analysis on organic fouling of structurally different anion exchange membranes in electrodialysis
	Cao, Hongbin; Zhao, Zhijuan; Sheng, Yuxing; Shi, Shaoyuan; Shan, Baoqing
刊名	DESALINATION
	2018-02-15
卷号	428 页码:199-206
关键词	Anion exchange membrane Structure differences Membrane fouling Surface properties Electrochemical impedance spectroscopy
ISSN号	0011-9164
文献子类	Article
英文摘要	The physicochemical and structural properties of the AMX (homogeneous AEM), AMA (semi-homogeneous AEM) and HAEM (heterogeneous AEM) were characterized systematically to examine their effects on membrane fouling from sodium dodecyl sulfate (SDS) in electrodialysis. Results demonstrated that the fouling of three AEMs was closely related to their membrane structure, and the denser membrane structure caused more SDS accumulated on the membrane surface to make the severer membrane fouling. The existence of SDS in the dilute solution caused the desalination rate of AMX, AMA and HAEM decreased by 42.3%, 15.3% and 9.2%, respectively. Different fouling layer was formed on the surface of AMX and AMA except HAEM, which was demonstrated firstly by element mapping of membrane cross-section. Electrochemical impedance spectroscopy (EIS) suggested the ionic migration through the fouled AMX was restricted completely, different from the trans membrane migration of partial ions through the fouled AMA and HAEM. Compared with the fouled AMA and HAEM, the performance of the fouled AMX caused by SDS was more difficult to be recovered due to its denser membrane structure.
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/41171]
专题	生态环境研究中心_环境水质学国家重点实验室
推荐引用方式 GB/T 7714	Cao, Hongbin,Zhao, Zhijuan,Sheng, Yuxing,et al. Property characterization and mechanism analysis on organic fouling of structurally different anion exchange membranes in electrodialysis[J]. DESALINATION,2018,428:199-206.
APA	Cao, Hongbin,Zhao, Zhijuan,Sheng, Yuxing,Shi, Shaoyuan,&Shan, Baoqing.(2018).Property characterization and mechanism analysis on organic fouling of structurally different anion exchange membranes in electrodialysis.DESALINATION,428,199-206.
MLA	Cao, Hongbin,et al."Property characterization and mechanism analysis on organic fouling of structurally different anion exchange membranes in electrodialysis".DESALINATION 428(2018):199-206.