Scaling mitigation in membrane distillation: From superhydrophobic to slippery

doi:10.1016/j.desal.2019.05.006

	Scaling mitigation in membrane distillation: From superhydrophobic to slippery
	Xiao, Zechun 1,2; Li, Zhansheng 3; Guo, Hong 1; Liu, Yongjie1,4 ; Wang, Yanshai 3; Yin, Huabing 5; Li, Xuemei 1; Song, Jianfeng 1; Nghiem, Long D.6; He, Tao 1
	2019-09-15
发表期刊	DESALINATION (IF:8.3[JCR-2023],8.7[5-Year])
ISSN	0011-9164
卷号	466 页码:36-43
发表状态	已发表
DOI	10.1016/j.desal.2019.05.006
摘要	Scaling is a major obstacle to commercial application of membrane distillation (MD) for desalination. Contemporary understanding of scaling formation onto hydrophobic membrane was built on thermodynamic assumption of a non-slip condition. This research provides an alternative theory and a novel insight from a hydrodynamic view of slip boundary. We purposely selected three polyvinylidene difluoride (PVDF) membranes with different surface characteristics - namely a tailor made superhydrophobic micro-pillared (CF4-MP-PVDF), a micro-pillared (MP-PVDF) and a commercial (C-PVDF) membranes, for direct contact membrane distillation (DCMD) using a supersaturated CaSO4 feed. MD flux analysis showed that CF4-MP-PVDF was highly scaling resistant whereas the other two membranes were not. Nucleation energy barrier, wetting state factor and slip length were used to explain for the observed difference in scaling behavior. Results showed that hydrodynamic properties, such as the wetting state and slip length, play a critical role in determining the anti-scaling behavior of a hydrophobic membrane rather than the contact angle nor the thermodynamic nucleation energy barrier. New findings from this study serve as a new guideline for the fabrication of antiscaling membranes by creating a slippery surface.
关键词	Slippery surface Membrane distillation Scaling Wetting state Slip length
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 ; Water Resources
WOS类目	Engineering, Chemical ; Water Resources
WOS记录号	WOS:000471733100004
出版者	ELSEVIER SCIENCE BV
EI入藏号	20192106945325
EI主题词	Calcium compounds ; Contact angle ; Desalination ; Distillation ; Energy barriers ; Hydrodynamics ; Hydrophobicity ; Nucleation ; Wetting
EI分类号	Water Treatment Techniques:445.1 ; Chemical Reactions:802.2 ; Chemical Operations:802.3 ; Physical Properties of Gases, Liquids and Solids:931.2 ; Crystal Growth:933.1.2 ; Materials Science:951
WOS关键词	PVDF MEMBRANES ; CRYSTALLIZATION BEHAVIOR ; TIO2 NANOCOMPOSITE ; CONTACT ; DESALINATION ; ENHANCEMENT ; PERFORMANCE ; PREVENTION ; FRAMEWORK ; FLOW
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/48968
专题	物质科学与技术学院_硕士生
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.Dalian Univ Technol, Dept Polymer Mat, Natl Key Lab Fine Chem Engn, Dalian 116024, Peoples R China 4.ShanghaiTech Univ, Sch Phys Sci & Technol, Shanghai 201210, Peoples R China 5.Univ Glasgow, Sch Engn, Glasgow G12 8LT, Lanark, Scotland 6.Univ Technol Sydney, Ctr Technol Water & Wastewater, Ultimo, NSW 2007, Australia
推荐引用方式 GB/T 7714	Xiao, Zechun,Li, Zhansheng,Guo, Hong,et al. Scaling mitigation in membrane distillation: From superhydrophobic to slippery[J]. DESALINATION,2019,466:36-43.
APA	Xiao, Zechun.,Li, Zhansheng.,Guo, Hong.,Liu, Yongjie.,Wang, Yanshai.,...&He, Tao.(2019).Scaling mitigation in membrane distillation: From superhydrophobic to slippery.DESALINATION,466,36-43.
MLA	Xiao, Zechun,et al."Scaling mitigation in membrane distillation: From superhydrophobic to slippery".DESALINATION 466(2019):36-43.