中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Surface charge enhanced synthesis of TpEB-based covalent organic framework (COF) membrane for dye separation with three typical charge properties

文献类型:期刊论文

作者Basel, Narendra1,2; Liu, Qiao1,2; Fan, Long2; Wang, Qing2; Xu, Nong1,2; Wan, Yinhua1; Dong, Qiang1,2; Huang, Zhifeng3; Guo, Tao3
刊名SEPARATION AND PURIFICATION TECHNOLOGY
出版日期2022-12-15
卷号303页码:16
ISSN号1383-5866
关键词Interfacial polymerization TpEB cationic COF Dye separation
DOI10.1016/j.seppur.2022.122243
英文摘要As a novel crystalline polymeric material, covalent organic framework (COF) has been paid the most attention by membrane separation researchers all over the world due to its pre-designable, regular pore structures, and reliable chemical stability. However, the fabrication of a homogenous, stable, thin COF layer on the support membrane remains challenging. In this work, the mechanism of electrostatic interaction between amino monomer and support was used to generate a stable and clear interface between the aqueous phase and the organic phase through the interfacial polymerization (IP) process. Specifically, the hydrophilicity and large pore size of polyacrylonitrile (PAN) mixed matrix membrane (MMM) allowed ethidium bromide monomers (EB) from the aqueous phase to penetrate and reach the negatively charged porous surface of the MMM. This assisted the fixation of the EB monomers at the interface with highly electrostatic interaction between the MMM's surface and the EB monomers. The Tp (1,3,5-triformylphloroglucinol) monomer of organic phase was polymerized with surface entangle EB, resulting in the TpEB COF with very thin, hydrophilic, stable, homogeneously distributed tiny pores, and cationic surface charge. The prepared TpEB COF composite membrane had a water permeability of 32.34 L.m(-2).h(-1) bar(-1), highly selective sieving performances for dye molecules of different charges and sizes. This membrane could reject - 99.99 % of anionic dyes like Potassium permanganate (PP), Congo red (CR) and Coomassie brilliant blue G-250 (CBB), meanwhile maintain high solvent permeability for a long time. But for cationic or neutral dyes, the rejection rates mainly depended on their molecular sizes.
WOS关键词GAS SEPARATION ; NANOSHEETS ; GRAPHENE ; CRYSTALLINE ; EFFICIENT ; DESIGN ; NANOFILTRATION ; TRANSPORT
资助项目Open Funding Project of the State Key Laboratory of Biochemical Engineering, Institute of Process Engineering (IPE) ; Chinese Academy of Sciences (CAS) ; University Natural Sciences Research Project of Anhui Province[KJ2020A0669] ; University Natural Sciences Research Project of Anhui Province[KJ2021A1015]
WOS研究方向Engineering
语种英语
出版者ELSEVIER
WOS记录号WOS:000871026000005
资助机构Open Funding Project of the State Key Laboratory of Biochemical Engineering, Institute of Process Engineering (IPE) ; Chinese Academy of Sciences (CAS) ; University Natural Sciences Research Project of Anhui Province
源URL[http://ir.ipe.ac.cn/handle/122111/55215]  
专题中国科学院过程工程研究所
通讯作者Xu, Nong; Wan, Yinhua
作者单位1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Biochem Engn, Beijing 100190, Peoples R China
2.Hefei Univ, Sch Energy Mat & Chem Engn, Hefei 230601, Peoples R China
3.Hefei Transcendent Technol Co Ltd, Suite 33-99,Jinxiu Avee, Hefei 230601, Peoples R China
推荐引用方式
GB/T 7714
Basel, Narendra,Liu, Qiao,Fan, Long,et al. Surface charge enhanced synthesis of TpEB-based covalent organic framework (COF) membrane for dye separation with three typical charge properties[J]. SEPARATION AND PURIFICATION TECHNOLOGY,2022,303:16.
APA Basel, Narendra.,Liu, Qiao.,Fan, Long.,Wang, Qing.,Xu, Nong.,...&Guo, Tao.(2022).Surface charge enhanced synthesis of TpEB-based covalent organic framework (COF) membrane for dye separation with three typical charge properties.SEPARATION AND PURIFICATION TECHNOLOGY,303,16.
MLA Basel, Narendra,et al."Surface charge enhanced synthesis of TpEB-based covalent organic framework (COF) membrane for dye separation with three typical charge properties".SEPARATION AND PURIFICATION TECHNOLOGY 303(2022):16.

入库方式: OAI收割

来源:过程工程研究所

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