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Fabrication of PES-based membranes with a high and stable desalination performance for membrane distillation
Liu, Lixia1,2; Shen, Fei1,2; Zhang, Bowu3; Jiang, Haiqing3; Li, Jingye3; Luo, Jianquan1,2; Wu, Huanhuan1,2; Khan, Rashid1,2; Wan, Yinhua1,2
2016
发表期刊RSC ADVANCES
ISSN2046-2069
卷号6期号:109页码:107840-107850
摘要

Polyethersulfone (PES)-based membranes with a high and stable desalination performance for vacuum membrane distillation (VMD) were fabricated by spraying a dispersion containing hydrophobic-modified PES grafted copolymers onto porous PES membranes. The copolymer (PES-g-PFMA-C-8) with different degrees of grafting (DG) was synthesized by grafting 1H,1H,2H,2H-perfluorodecyl methacrylate (FMA-C-8) onto PES by simultaneous irradiation in a homogeneous system wherein the kinetics of the radiation-induced graft polymerization was studied. The copolymers, pristine PES membrane and fabricated PES-based membranes were also characterized by Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy and scanning electron microscopy. After spraying, the hydrophobicity of the membrane increased and its maximum pore size reduced, which enhanced its desalination stability. During an intermittent 80 h VMD desalination operation, a flux of approximately 50.5 kg m(-2) h(-1) and a stable salt rejection of 99.98% were achieved when a 3.5 wt% NaCl solution was treated at 70 degrees C under vacuum of 92 kPa by the PES-based membrane using the copolymer with a DG of 20.3%, whereas salt leakage obviously occurred since the 52nd hour of operation when the pristine PES membrane was used. These results indicate that the modified PES membrane developed in this study is a promising candidate for VMD desalination due to its comparable flux.

文章类型Article
WOS标题词Science & Technology ; Physical Sciences
DOI10.1039/c6ra22193a
收录类别SCI
语种英语
关键词[WOS]SURFACE MODIFYING MACROMOLECULES ; HOLLOW-FIBER MEMBRANES ; POLYETHERSULFONE MEMBRANES ; SIMULTANEOUS IRRADIATION ; WATER DESALINATION ; PVDF MEMBRANES ; ACRYLIC-ACID ; POWDER ; FILMS
WOS研究方向Chemistry
WOS类目Chemistry, Multidisciplinary
项目资助者National Natural Science Funds of China(21106153) ; Solar Energy Initiative of the Chinese Academy of Sciences(KGCX2-YW-380) ; National High-Tech R&D Program of China(2012AA021202 ; 2014AA021005)
WOS记录号WOS:000389342400088
引用统计
文献类型期刊论文
条目标识符http://ir.ipe.ac.cn/handle/122111/21837
专题生化工程国家重点实验室
作者单位1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Biochem Engn, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China
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GB/T 7714
Liu, Lixia,Shen, Fei,Zhang, Bowu,et al. Fabrication of PES-based membranes with a high and stable desalination performance for membrane distillation[J]. RSC ADVANCES,2016,6(109):107840-107850.
APA Liu, Lixia.,Shen, Fei.,Zhang, Bowu.,Jiang, Haiqing.,Li, Jingye.,...&Wan, Yinhua.(2016).Fabrication of PES-based membranes with a high and stable desalination performance for membrane distillation.RSC ADVANCES,6(109),107840-107850.
MLA Liu, Lixia,et al."Fabrication of PES-based membranes with a high and stable desalination performance for membrane distillation".RSC ADVANCES 6.109(2016):107840-107850.
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