3-[[3-(Triethoxysilyl)-propyl] amino] propane-1-sulfonic acid zwitterion grafted polyvinylidene fluoride antifouling membranes for concentrating greywater in direct contact membrane distillation

doi:10.1016/j.desal.2019.01.009

	3-[[3-(Triethoxysilyl)-propyl] amino] propane-1-sulfonic acid zwitterion grafted polyvinylidene fluoride antifouling membranes for concentrating greywater in direct contact membrane distillation
	Wang, Jin 1,2; He, Hailong3 ; Wang, Mengliang1,3 ; Xiao, Zechun 1,2; Chen, Ying 1; Wang, Yanqiang 4; Song, Jianfeng 1,2; Li, Xue-Mei 1; Zhang, Yuebiao3 ; He, Tao1,3
	2019-04
发表期刊	DESALINATION
ISSN	0011-9164
卷号	455 页码:71-78
发表状态	已发表
DOI	10.1016/j.desal.2019.01.009
摘要	Direct contact membrane distillation (DCMD) is attractive for wastewater reuse where low-grade heat is highly abundant, but membrane fouling is of critical concerns. In this work, a zwitterion surface-grafted composite polyvinylidene fluoride membrane (PVDF-T) was introduced for DCMD treatment of greywater, a lightly polluted wastewater. Surface grafting was achieved by hydroxylation of a pristine PVDF membrane followed by silanization with the zwitterionomer 3-[[3-(triethoxysilyl)-propyl] amino] propane-1-sulfonic acid (TPAPS). The resulting composite PVDF-T membrane showed a significantly reduced water contact angle but nearly the same liquid entry pressure (LEP) indicating that silanization took place mostly at the surface, and the porous matrix remained hydrophobic. Elemental analysis confirmed that the TPAPS surface grafting was successful. Gas permeability tests indicated increased transport resistance, indicating the extra resistance imposed the zwitterionic modification. In concentrating the synthetic greywater, the PVDF-T membrane exhibited much more stable DCMD flux and constant permeate conductivity than the virgin PVDF membrane. Visual and scanning electron microscopy analysis after MD experiments showed that the PVDF-T membrane was fouled less than the pristine membrane. Improvement in surface hydrophilicity, electronegative charge and steric hindrance were ascribed as the main factors for the fouling resistance of a surface grafted zwitterionic composite PVDF membrane.
关键词	Hydrophilic-hydrophobic Grey water Membrane distillation Anti-fouling, zwitterionic
收录类别	SCI ; SCIE ; EI
语种	英语
资助项目	Newton Advanced Fellowships[NA170113]
WOS研究方向	Engineering ; Water Resources
WOS类目	Engineering, Chemical ; Water Resources
WOS记录号	WOS:000458944300005
出版者	ELSEVIER SCIENCE BV
EI入藏号	20190306384606
EI主题词	Contact angle ; Distillation ; Fluorine compounds ; Gas permeability ; Grafting (chemical) ; Hydrophilicity ; Hydrophobicity ; Membrane fouling ; Polyols ; Propane ; Scanning electron microscopy ; Surface resistance ; Wastewater reclamation ; Wastewater treatment
EI分类号	Industrial Wastes Treatment and Disposal:452.4 ; Chemical Reactions:802.2 ; Chemical Operations:802.3 ; Organic Compounds:804.1 ; Physical Properties of Gases, Liquids and Solids:931.2 ; Materials Science:951
WOS关键词	SUPERHYDROPHOBIC PVDF MEMBRANES ; WASTE-WATER TREATMENT ; SURFACE MODIFICATION ; CHARGE
原始文献类型	Article
引用统计
文献类型	期刊论文
条目标识符	https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/30409
专题	物质科学与技术学院_硕士生物质科学与技术学院_PI研究组_章跃标组物质科学与技术学院_特聘教授组_何涛组
通讯作者	He, Tao
作者单位	1.Chinese Acad Sci, Shanghai Adv Res Inst, Shanghai 201210, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.ShanghaiTech Univ, Sch Phys Sci & Technol, Shanghai 201210, Peoples R China 4.Disney Res Ctr China, Shanghai 200031, Peoples R China
通讯作者单位	物质科学与技术学院
推荐引用方式 GB/T 7714	Wang, Jin,He, Hailong,Wang, Mengliang,et al. 3-[[3-(Triethoxysilyl)-propyl] amino] propane-1-sulfonic acid zwitterion grafted polyvinylidene fluoride antifouling membranes for concentrating greywater in direct contact membrane distillation[J]. DESALINATION,2019,455:71-78.
APA	Wang, Jin.,He, Hailong.,Wang, Mengliang.,Xiao, Zechun.,Chen, Ying.,...&He, Tao.(2019).3-[[3-(Triethoxysilyl)-propyl] amino] propane-1-sulfonic acid zwitterion grafted polyvinylidene fluoride antifouling membranes for concentrating greywater in direct contact membrane distillation.DESALINATION,455,71-78.
MLA	Wang, Jin,et al."3-[[3-(Triethoxysilyl)-propyl] amino] propane-1-sulfonic acid zwitterion grafted polyvinylidene fluoride antifouling membranes for concentrating greywater in direct contact membrane distillation".DESALINATION 455(2019):71-78.