CAS OpenIR
Anion Exchange Nanocomposite Membranes Modified with Graphene Oxide and Polydopamine: Interfacial Structure and Antifouling Applications
Li, Yujiao1,2; Shi, Shaoyuan1,2,3; Cao, Hongbin1,2; Xu, Bin4; Zhao, Zhijuan1,2; Cao, Renqiang1,2; Chang, Junjun1,2; Duan, Feng1,2; Wen, Hao1,2
2020
Source PublicationACS APPLIED NANO MATERIALS
ISSN2574-0970
Volume3Issue:1Pages:588-596
Abstract

In this work, electrochemical impedance spectroscopy (EIS) was utilized to probe interfacial structures of antifouling anion exchange membranes (AEMs) with different modifying architectures fabricated by graphene oxide (GO) and polydopamine (PDA). Results showed that the GO@PDA modified AEMs with a compact GO@PDA layer exhibited a new interface between the modifying layer and membrane matrix, different from the loose GO-modified AEMs. After fouling experiments, from quantifying electrical equivalent circuits fitted to EIS results, it could be found that GO-modified AEMs and PDA-modified AEMs exhibited a significant foulants layer, although the modifying layer reduced the amount of foulants absorbed in the membrane matrix. For GO@PDA-modified AEMs, the increase in ohmic resistance and the foulants layer was almost negligible. Only a small amount of foulants accumulating on the GO@PDA layer affected the capacitive resistance of the interfacial layer obviously. It was concluded that the electrochemical properties and interface of modified AEMs was influenced by the structure of modifying layer, and a dense and compact modifying layer could be more effective to block the foulants from depositing on the surface of AEMs and entering the membrane matrix. The electrochemical characterizations helped to elucidate the antifouling mechanism of modified AEMs with different structures and get a good understanding of the correlation among the properties, structures, and antifouling performance of the modifying layer.

KeywordAnion Exchange Membrane Surface Modification Electrochemical Impedance Spectroscopy Interfacial Structure Antifouling
DOI10.1021/acsanm.9b02142
Language英语
WOS KeywordElectrochemical Impedance Spectroscopy ; Surface Modification ; Polyelectrolyte ; Electrodeposition ; Improvement ; Systems
Funding ProjectNational Science Foundation of China[51878645] ; Major Science and Technology Program for Water Pollution Control and Treatment[2017ZX07402001] ; National Key Research and Development Program of China[2016YFB0600S05] ; Beijing Natural Science Foundation[8132047]
WOS Research AreaScience & Technology - Other Topics ; Materials Science
WOS SubjectNanoscience & Nanotechnology ; Materials Science, Multidisciplinary
Funding OrganizationNational Science Foundation of China ; Major Science and Technology Program for Water Pollution Control and Treatment ; National Key Research and Development Program of China ; Beijing Natural Science Foundation
WOS IDWOS:000510073600062
PublisherAMER CHEMICAL SOC
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/39480
Collection中国科学院过程工程研究所
Corresponding AuthorCao, Hongbin
Affiliation1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Biochem Engn, Beijing Engn Res Ctr Proc Pollut Control, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Zhengzhou Inst Emerging Ind Technol, Zhengzhou 450000, Peoples R China
4.Hansteel Co, Hebei Iron & Steel Grp, Handan 005600, Peoples R China
Recommended Citation
GB/T 7714
Li, Yujiao,Shi, Shaoyuan,Cao, Hongbin,et al. Anion Exchange Nanocomposite Membranes Modified with Graphene Oxide and Polydopamine: Interfacial Structure and Antifouling Applications[J]. ACS APPLIED NANO MATERIALS,2020,3(1):588-596.
APA Li, Yujiao.,Shi, Shaoyuan.,Cao, Hongbin.,Xu, Bin.,Zhao, Zhijuan.,...&Wen, Hao.(2020).Anion Exchange Nanocomposite Membranes Modified with Graphene Oxide and Polydopamine: Interfacial Structure and Antifouling Applications.ACS APPLIED NANO MATERIALS,3(1),588-596.
MLA Li, Yujiao,et al."Anion Exchange Nanocomposite Membranes Modified with Graphene Oxide and Polydopamine: Interfacial Structure and Antifouling Applications".ACS APPLIED NANO MATERIALS 3.1(2020):588-596.
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