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Modification of thin film composite polyamide membranes with 3D hyperbranched polyglycerol for simultaneous improvement in their filtration performance and antifouling properties
Liu, Zhongyun1,2; An, Xiaochan2; Dong, Chunhong2; Zheng, Sunxiang3; Mi, Baoxia3; Hu, Yunxia1,2
2017-11-28
Source PublicationJOURNAL OF MATERIALS CHEMISTRY A
ISSN2050-7488
Volume5Issue:44Pages:23190-23197
AbstractThis study investigated a novel surface modification strategy for thin film composite (TFC) polyamide membranes using hyperbranched polyglycerol (hPG), which is not only super-hydrophilic to mitigate fouling, but also has a unique three-dimensional globular architecture to enhance water transport. Membrane surface modification with hydrophilic polymers has been shown to improve the membrane fouling resistance, but often at the expense of decreased water flux. To solve this dilemma, a highly permeable antifouling layer was created by grafting hPG onto the polyamide surface of a TFC membrane via a layer-by-layer interfacial polymerization method. The grafted hPG remarkably enhanced the hydrophilicity of the TFC polyamide surfaces, resulting in an extremely low water contact angle (16.4 degrees), and significantly increased the water permeability by 41.5% compared to pristine TFC membranes. Furthermore, the hPG-grafted TFC polyamide membrane exhibited an improved antifouling performance with both reduced BSA protein adsorption in static fouling experiments and lower water flux decline in dynamic fouling tests. Therefore, our work sheds light on using novel 3D hyperbranched polymers for effectively and efficiently engineering membrane surfaces to simultaneously improve their antifouling properties and filtration performances in forward osmosis membrane processes.
DOI10.1039/c7ta07335f
Funding OrganizationNational Natural Science Foundation of China(21476249) ; Key Science and Technology Program of Shandong Province(2014GHY115021) ; Key Science and Technology Program of Yantai City(2015ZH063) ; China Scholarship Council (CSC)
Indexed BySCI
WOS KeywordREVERSE-OSMOSIS MEMBRANE ; ORGANIC FOULING RESISTANCE ; OSMOTIC POWER-GENERATION ; SURFACE MODIFICATION ; POLY(ETHYLENE GLYCOL) ; BIOFOULING MITIGATION ; ZWITTERIONIC POLYMER ; BLOCK-COPOLYMER ; RO MEMBRANES ; QCM-D
SubtypeArticle
Language英语
WOS Research AreaChemistry ; Energy & Fuels ; Materials Science
WOS SubjectChemistry, Physical ; Energy & Fuels ; Materials Science, Multidisciplinary
WOS IDWOS:000415070100035
PublisherROYAL SOC CHEMISTRY
Citation statistics
Document Type期刊论文
Identifierhttp://ir.yic.ac.cn/handle/133337/24044
Collection山东省海岸带环境工程技术研究中心
Corresponding AuthorHu, Yunxia
Affiliation1.Tianjin Polytech Univ, Sch Mat Sci & Engn, State Key Lab Separat Membranes & Membrane Proc, Tianjin 300387, Peoples R China
2.Chinese Acad Sci, Yantai Inst Coastal Zone Res, CAS Key Lab Coastal Environm Proc & Ecol Remediat, Yantai 264003, Shandong, Peoples R China
3.Univ Calif Berkeley, Dept Civil & Environm Engn, Berkeley, CA 94720 USA
First Author AffilicationYantai Institute of Coastal Zone Research, Chinese Academy of Sciences
Corresponding Author AffilicationYantai Institute of Coastal Zone Research, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Liu, Zhongyun,An, Xiaochan,Dong, Chunhong,et al. Modification of thin film composite polyamide membranes with 3D hyperbranched polyglycerol for simultaneous improvement in their filtration performance and antifouling properties[J]. JOURNAL OF MATERIALS CHEMISTRY A,2017,5(44):23190-23197.
APA Liu, Zhongyun,An, Xiaochan,Dong, Chunhong,Zheng, Sunxiang,Mi, Baoxia,&Hu, Yunxia.(2017).Modification of thin film composite polyamide membranes with 3D hyperbranched polyglycerol for simultaneous improvement in their filtration performance and antifouling properties.JOURNAL OF MATERIALS CHEMISTRY A,5(44),23190-23197.
MLA Liu, Zhongyun,et al."Modification of thin film composite polyamide membranes with 3D hyperbranched polyglycerol for simultaneous improvement in their filtration performance and antifouling properties".JOURNAL OF MATERIALS CHEMISTRY A 5.44(2017):23190-23197.
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