Controlled aggregation of phytic acid metal complex on polysulfone ultrafiltration membrane toward simultaneous rejection of highly emulsified oils and dyes

doi:10.1016/j.colsurfa.2022.128568

CORC > 兰州理工大学 > 兰州理工大学 > 石油化工学院

	Controlled aggregation of phytic acid metal complex on polysulfone ultrafiltration membrane toward simultaneous rejection of highly emulsified oils and dyes
	Bao, Xuemei 1,2; Wang, Furong 2; Liu, Qianqian 2; Yu, Fengjiao 2; Yang, Yang 2
刊名	Colloids and Surfaces A: Physicochemical and Engineering Aspects
	2022-05-20
卷号	641
关键词	Cost effectiveness Drops Dyes Hydrophilicity Iron compounds Membranes Metal complexes Pore size Reusability Self assembly Ultrafiltration Wastewater treatment Water filtration Controled aggregation Dye rejection Emulsified oil Emulsion separations Hydrophilics Phytic acids Polysulphone Sequential assembly Ultra-filtration membranes Ultrafiltration membranes
ISSN号	0927-7757
DOI	10.1016/j.colsurfa.2022.128568
英文摘要	Despite enormous application prospect in wastewater treatment, the moderately hydrophilic ultrafiltration (UF) membrane with the intrinsic pore size has been proved ineffective for removal of highly emulsified oil droplets and organic dyes merely by the size screening effect. Although modification of polymer fibrous membranes by the phytic acid (PA)-metal complex coatings has been widely investigated for updating the membrane performances, the feasibility of this simple dip-coating approach in modifying polymer UF membrane with an asymmetric structure is still unrevealed and required testifying. Herein, we report the modification of asymmetric polysulfone (PSF) UF membranes through the formation of hydrophilic PA-FeIII complex coatings via controlled aggregation. We reveal that 1-cycle crosslinked PA-FeIII sequential assembly with adequate reaction time represents the optimal conditions for achieving PA-FeIII/PSF membranes with desired wettability, separation performances and reusability. The PA-FeIII complex aggregations afford the hierarchical roughness and the high density of phosphonic acid group, which favors the trapping of water and formation of a stable hydration layer to separate highly emulsified oil droplets and prevent them from fouling the membrane. Besides, the molecular layer deposition mode of the PA-FeIII compact film enables a fine adjustment of the pore aperture, guaranteeing the simultaneous rejections to small-sized emulsified droplets and non-specific organic dye molecules. The rapid, easy to scale up, and cost-effective modification process for polymer UF membranes is expected to be of technological significance for various practical applications, especially for sophisticated oily wastewater decontamination. © 2022 Elsevier B.V.
WOS研究方向	Chemistry
语种	英语
出版者	Elsevier B.V.
WOS记录号	WOS:000772832000001
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/157924]
专题	石油化工学院
作者单位	1.College of Petrochemical Technology, Lanzhou University of Technology, Lanzhou; 730050, China 2.State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing; 211816, China;
推荐引用方式 GB/T 7714	Bao, Xuemei,Wang, Furong,Liu, Qianqian,et al. Controlled aggregation of phytic acid metal complex on polysulfone ultrafiltration membrane toward simultaneous rejection of highly emulsified oils and dyes[J]. Colloids and Surfaces A: Physicochemical and Engineering Aspects,2022,641.
APA	Bao, Xuemei,Wang, Furong,Liu, Qianqian,Yu, Fengjiao,&Yang, Yang.(2022).Controlled aggregation of phytic acid metal complex on polysulfone ultrafiltration membrane toward simultaneous rejection of highly emulsified oils and dyes.Colloids and Surfaces A: Physicochemical and Engineering Aspects,641.
MLA	Bao, Xuemei,et al."Controlled aggregation of phytic acid metal complex on polysulfone ultrafiltration membrane toward simultaneous rejection of highly emulsified oils and dyes".Colloids and Surfaces A: Physicochemical and Engineering Aspects 641(2022).