Preparation of omniphobic PVDF membrane with hierarchical structure for treating saline oily wastewater using direct contact membrane distillation

doi:10.1016/j.memsci.2018.03.041

	Preparation of omniphobic PVDF membrane with hierarchical structure for treating saline oily wastewater using direct contact membrane distillation
	Zheng, Rui 1,2; Chen, Ying 1; Wang, Jin 1,2; Song, Jianfeng 1; Li, Xue-Mei 1; He, Tao1,3
	2018-06
发表期刊	JOURNAL OF MEMBRANE SCIENCE (IF:8.4[JCR-2023],8.1[5-Year])
ISSN	0376-7388
卷号	555 页码:197-205
发表状态	已发表
DOI	10.1016/j.memsci.2018.03.041
摘要	Thermally driven membrane distillation process, for desalination of a wide spectrum of water, has attracted both scientific and industrial attention for decades. However, membrane fouling by contaminants in the feed stream was of great concern. Mitigating membrane fouling requires insights from surface and material science. We reported an omniphobic polyvinylidene fluoride (PVDF) membrane with hierarchical structure which was created by spray coating of the nano/microspheres onto a commercial PVDF porous substrate. The multiscale microspheres were prepared based on electrostatic interactions between silica nanoparticles (SiNPs) and polystyrene (PS) microsphere. A chemical binding agent, polymer 3-methacryloxypropyltrimethoxysilane (PA174) synthesized via free radical polymerization, was utilized to enhance the adhesion of the particles to the membrane support, leading to a robust structure. The final fluorination step using 1H, 1H, 2H, 2H-perfluorodecyltrimethoxysilane (17-FAS) attributed the membrane omniphobicity. The water/hexadecane contact angle of the present membrane surface was 176 degrees/138.4 degrees, and the water sliding angle was 7 degrees. Challenged with a hexadecane emulsion feed solution stabilized with the SDS surfactant in membrane distillation, the membrane showed a very stable flux and decrease in conductivity on the permeate side in contrast to decreased flux and increase in permeate conductivity for other benchmark membranes. This performance indicates that omniphobic membranes with hierarchical morphology are promising in addressing membrane wetting and fouling issues in the DCMD processes.
关键词	Omniphobic Hierarchical Re-entrant Membrane distillation Antifouling
收录类别	SCI ; SCIE ; EI
语种	英语
资助项目	Newton Advanced Fellowship[NA170113]
WOS研究方向	Engineering ; Polymer Science
WOS类目	Engineering, Chemical ; Polymer Science
WOS记录号	WOS:000432587300021
出版者	ELSEVIER SCIENCE BV
EI入藏号	20181304963952
EI主题词	Desalination ; Distillation ; Emulsification ; Fluorine compounds ; Free radical polymerization ; Free radicals ; Membrane fouling ; Microspheres ; Silica nanoparticles ; Wastewater treatment ; Wetting
EI分类号	Water Treatment Techniques:445.1 ; Industrial Wastes Treatment and Disposal:452.4 ; Chemical Operations:802.3 ; Polymerization:815.2 ; Materials Science:951
WOS关键词	ELECTROSPUN NANOFIBER MEMBRANE ; SUPERHYDROPHOBIC MEMBRANES ; CRYSTALLIZATION BEHAVIOR ; SURFACE-ENERGY ; FILMS ; HYDROPHOBICITY ; DESALINATION ; WETTABILITY ; PERFORMANCE ; FABRICATION
原始文献类型	Article
引用统计	正在获取...
文献类型	期刊论文
条目标识符	https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/20198
专题	物质科学与技术学院_特聘教授组_何涛组
通讯作者	Li, Xue-Mei; 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
通讯作者单位	物质科学与技术学院
推荐引用方式 GB/T 7714	Zheng, Rui,Chen, Ying,Wang, Jin,et al. Preparation of omniphobic PVDF membrane with hierarchical structure for treating saline oily wastewater using direct contact membrane distillation[J]. JOURNAL OF MEMBRANE SCIENCE,2018,555:197-205.
APA	Zheng, Rui,Chen, Ying,Wang, Jin,Song, Jianfeng,Li, Xue-Mei,&He, Tao.(2018).Preparation of omniphobic PVDF membrane with hierarchical structure for treating saline oily wastewater using direct contact membrane distillation.JOURNAL OF MEMBRANE SCIENCE,555,197-205.
MLA	Zheng, Rui,et al."Preparation of omniphobic PVDF membrane with hierarchical structure for treating saline oily wastewater using direct contact membrane distillation".JOURNAL OF MEMBRANE SCIENCE 555(2018):197-205.