Fabrication of PES-based membranes with a high and stable desalination performance for membrane distillation

doi:10.1039/c6ra22193a

CAS OpenIR > 中科院上海应用物理研究所2011-2018年

	Fabrication of PES-based membranes with a high and stable desalination performance for membrane distillation
	Liu, LX; Shen, F; Zhang, BW; Jiang, HQ; Li, JY; Luo, JQ; Wu, HH; Khan, R; Wan, YH; Wan, YH (reprint author), Chinese Acad Sci, Inst Proc Engn, State Key Lab Biochem Engn, Beijing 100190, Peoples R China.; Wan, YH (reprint author), Univ Chinese Acad Sci, Beijing 100049, Peoples R China.
	2016
发表期刊	RSC ADVANCES
ISSN	2046-2069
卷号	6 期号:109 页码:107840-107850
文章类型	期刊论文
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.
DOI	10.1039/c6ra22193a
收录类别	SCI
语种	英语
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.sinap.ac.cn/handle/331007/26505
专题	中科院上海应用物理研究所2011-2018年
通讯作者	Shen, F; Wan, YH (reprint author), Chinese Acad Sci, Inst Proc Engn, State Key Lab Biochem Engn, Beijing 100190, Peoples R China.; Wan, YH (reprint author), Univ Chinese Acad Sci, Beijing 100049, Peoples R China.
推荐引用方式 GB/T 7714	Liu, LX,Shen, F,Zhang, BW,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, LX.,Shen, F.,Zhang, BW.,Jiang, HQ.,Li, JY.,...&Wan, YH .(2016).Fabrication of PES-based membranes with a high and stable desalination performance for membrane distillation.RSC ADVANCES,6(109),107840-107850.
MLA	Liu, LX,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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