Fabrication of Antiswelling Loose Nanofiltration Membranes via a "Selective-Etching-Induced Reinforcing" Strategy for Bioseparation

doi:10.1021/acsami.1c02611

	Fabrication of Antiswelling Loose Nanofiltration Membranes via a "Selective-Etching-Induced Reinforcing" Strategy for Bioseparation
	Guo, Shiwei; Zhang, Huiru; Chen, Xiangrong; Feng, Shichao; Wan, Yinhua; Luo, Jianquan
刊名	ACS APPLIED MATERIALS & INTERFACES
	2021-04-28
卷号	13 期号:16 页码:19312-19323
关键词	membrane fouling membrane cleaning antiswelling polyamide decolorization
ISSN号	1944-8244
DOI	10.1021/acsami.1c02611
英文摘要	With diverse selectivity, higher permeance, and good antifouling property, loose polyamide nanofiltration (NF) membranes can be potentially deployed in various bioseparation applications. However, the loose NF membrane with a low crosslinking degree generally suffers from the alkali-induced pore swelling during chemical cleaning, resulting in degradation of separation performance with time. In this work, we conceive a novel strategy to tailor the separating layer through alkaline post-etching following the interfacial polymerization process, where piperazine and tannic acid (TA) were used as water-phase monomers, and trimesoyl chloride (TMC) and ferric acetylacetonate were employed as organic monomers in n-hexane. Thereinto, the polyester network formed by TA and TMC was selectively etched by alkaline treatment, thus obtaining a loose NF membrane, whose structure and performance could be facilely tailored by controlling the TA ratio and the etching pH. As a result, the well-designed loose NF membrane exhibited higher flux, better selectivity, and more stable separation performance in a long-term filtration of diluted cane molasses. Interestingly, the obtained loose NF membrane showed excellent antiswelling ability during alkaline cleaning because of network locking induced by Fe3+ chelation, decrease in the carboxyl proportion (more hydroxyl generation due to the ester bond hydrolysis), and enhanced interface interaction between the separation layer and the sublayer attributed to catechol adhesion effect. Therefore, such a "selective-etchinginduced reinforcing" strategy could endow the polyamide NF membrane with both loose and antiswelling separation layer in a reliable and scalable way, which provides a new perspective for preparing highly selective and stable NF membrane for resource recovery.
资助项目	Province Key Research and Development Program of Shandong[2019JZZY010348] ; Science and Technology Service Network Program of the Chinese Academy of Sciences[KFJ-STS-QYZX-096]
WOS关键词	FILM ; PERFORMANCE ; HYDROLYSIS ; FLUX
WOS研究方向	Science & Technology - Other Topics ; Materials Science
语种	英语
出版者	AMER CHEMICAL SOC
WOS记录号	WOS:000645520700093
资助机构	Province Key Research and Development Program of Shandong ; Science and Technology Service Network Program of the Chinese Academy of Sciences
内容类型	期刊论文
源URL	[http://ir.ipe.ac.cn/handle/122111/48722]
专题	中国科学院过程工程研究所
通讯作者	Wan, Yinhua; Luo, Jianquan
作者单位	Chinese Acad Sci, Univ 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	Guo, Shiwei,Zhang, Huiru,Chen, Xiangrong,et al. Fabrication of Antiswelling Loose Nanofiltration Membranes via a "Selective-Etching-Induced Reinforcing" Strategy for Bioseparation[J]. ACS APPLIED MATERIALS & INTERFACES,2021,13(16):19312-19323.
APA	Guo, Shiwei,Zhang, Huiru,Chen, Xiangrong,Feng, Shichao,Wan, Yinhua,&Luo, Jianquan.(2021).Fabrication of Antiswelling Loose Nanofiltration Membranes via a "Selective-Etching-Induced Reinforcing" Strategy for Bioseparation.ACS APPLIED MATERIALS & INTERFACES,13(16),19312-19323.
MLA	Guo, Shiwei,et al."Fabrication of Antiswelling Loose Nanofiltration Membranes via a "Selective-Etching-Induced Reinforcing" Strategy for Bioseparation".ACS APPLIED MATERIALS & INTERFACES 13.16(2021):19312-19323.