Commercial polysulfone membranes pretreated with ethanol and NaOH: Effects on permeability, selectivity and antifouling properties

doi:10.1016/j.seppur.2019.03.020

	Commercial polysulfone membranes pretreated with ethanol and NaOH: Effects on permeability, selectivity and antifouling properties
	Ji, Mingbo 1; Luo, Jianquan 2; Wei, Jiang 1; Woodley, John 1; Daugaard, Anders Egede 1; Pinelo, Manuel 1
刊名	SEPARATION AND PURIFICATION TECHNOLOGY
	2019-07-15
卷号	219 页码:82-89
关键词	Ethanol pretreatment Sodium hydroxide pretreatment Polysulfone ultrafiltration membrane Protein separation Fouling
ISSN号	1383-5866
DOI	10.1016/j.seppur.2019.03.020
英文摘要	This study explores the effect of three simple pretreatment methods - hot water, ethanol (EtOH) and sodium hydroxide (NaOH) - on the performance of commercial polysulfone (PSt) membranes. 100% EtOH and 1 M NaOH pretreated membranes exhibited increases of, respectively, 600% and 50% of water permeability compared to the hot water pretreated membrane (control). Such increases were partially ascribed to the removal of preservatives i.e. glycerol and polyvinylpyrrolidone (PVP) in the chemically pretreated membranes, as confirmed by FTIR spectra. The dramatic increase of water permeability in the ethanol pretreated membranes was also explained by pore enlargement, which was confirmed by decreased retention of dextran of selected molecular weights. Protein (BSA and pepsin) filtration experiments confirmed the occurrence of higher flux during filtration when using ethanol and NaOH pretreated membranes, though fouling caused during filtration was more severe and more difficult to remove in ethanol pretreated membranes compared to the control. Static protein adsorption measurements confirmed that ethanol pretreated membranes had an enhanced propensity to adsorb more protein. Water permeability tests performed after maintaining the pretreated membranes in water for several days confirmed that the changes induced by the selected pretreatments persist after at least 7 days. In general these results show that the studied pretreatment methods can be used to tailor the properties of commercial polysulfone membranes in terms of permeability and retention to a certain extent and in a simple, inexpensive manner.
资助项目	China Scholarship Council
WOS关键词	ULTRAFILTRATION MEMBRANES ; UF MEMBRANE ; PERFORMANCE ; PVDF ; FLUX ; HYDROPHILICITY ; HYPOCHLORITE ; PERMEATION ; STABILITY ; SOLVENTS
WOS研究方向	Engineering
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000465054400010
资助机构	China Scholarship Council
内容类型	期刊论文
源URL	[http://ir.ipe.ac.cn/handle/122111/28142]
专题	中国科学院过程工程研究所
通讯作者	Luo, Jianquan; Pinelo, Manuel
作者单位	1.Tech Univ Denmark, Dept Chem & Biochem Engn, Bldg 229, DK-2800 Lyngby, Denmark 2.Univ Chinese Acad Sci, Chinese Acad Sci, Inst Proc Engn, State Key Lab Biochem Engn, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Ji, Mingbo,Luo, Jianquan,Wei, Jiang,et al. Commercial polysulfone membranes pretreated with ethanol and NaOH: Effects on permeability, selectivity and antifouling properties[J]. SEPARATION AND PURIFICATION TECHNOLOGY,2019,219:82-89.
APA	Ji, Mingbo,Luo, Jianquan,Wei, Jiang,Woodley, John,Daugaard, Anders Egede,&Pinelo, Manuel.(2019).Commercial polysulfone membranes pretreated with ethanol and NaOH: Effects on permeability, selectivity and antifouling properties.SEPARATION AND PURIFICATION TECHNOLOGY,219,82-89.
MLA	Ji, Mingbo,et al."Commercial polysulfone membranes pretreated with ethanol and NaOH: Effects on permeability, selectivity and antifouling properties".SEPARATION AND PURIFICATION TECHNOLOGY 219(2019):82-89.