Fabrication and characterization of high-strength PVDF/nonwoven fabric electrospun composite membranes for direct contact membrane distillation

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 中国科学院饮用水科学与技术重点实验室

	Fabrication and characterization of high-strength PVDF/nonwoven fabric electrospun composite membranes for direct contact membrane distillation
	Li, Kuiling; Chang, Jiang; Hou, Deyin; Ding, Chunli; Wang, Jun
刊名	DESALINATION AND WATER TREATMENT
	2017-11-01
卷号	95 期号:0 页码:61-73
关键词	Membrane Distillation Hydrophobic Surface Electrospinning Polyvinylidene Fluoride Nonwoven Fabric Mechanical Strength
英文摘要	The polyvinylidene fluoride (PVDF) nanofibers composite membranes were fabricated for membrane distillation using polyester nonwoven fabric as a substrate via electrospinning. The influences of nonwoven fabric and electrospinning time on membrane morphology, hydrophobicity, pore size and pore size distribution, porosity, mechanical strength and permeability were evaluated. All the electrospun composite membranes had a three-dimensional bead-fiber interconnected open structure and a rough membrane surface with water contact angle of greater than 140 degrees. The composite membranes obtained high-mechanical strength because of nonwoven fabric substrate, which was important for industrial application. The resultant membranes were tested through direct contact membrane distillation (DCMD) using 3.5 wt% sodium chloride solution as feed, and the highest permeate flux was up to 54.0 kg/m(2) h at feed temperature of 80 degrees C. The anti-fouling properties of the fabricated membrane were investigated by DCMD experiment with mixed solution including sodium chloride, calcium chloride and humic acid, and the composite membrane presented excellent anti-fouling performance. During sodium chloride solution concentration process, it was demonstrated that the permeability and hydrophobicity of the composite membrane can maintain well after repeated use and rinse. The results suggested the potential of the electrospun PVDF/nonwoven fabric composite membrane for membrane distillation application.
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/39698]
专题	生态环境研究中心_中国科学院饮用水科学与技术重点实验室
推荐引用方式 GB/T 7714	Li, Kuiling,Chang, Jiang,Hou, Deyin,et al. Fabrication and characterization of high-strength PVDF/nonwoven fabric electrospun composite membranes for direct contact membrane distillation[J]. DESALINATION AND WATER TREATMENT,2017,95(0):61-73.
APA	Li, Kuiling,Chang, Jiang,Hou, Deyin,Ding, Chunli,&Wang, Jun.(2017).Fabrication and characterization of high-strength PVDF/nonwoven fabric electrospun composite membranes for direct contact membrane distillation.DESALINATION AND WATER TREATMENT,95(0),61-73.
MLA	Li, Kuiling,et al."Fabrication and characterization of high-strength PVDF/nonwoven fabric electrospun composite membranes for direct contact membrane distillation".DESALINATION AND WATER TREATMENT 95.0(2017):61-73.