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author:

Wang, Jiande (Wang, Jiande.) [1] | Wang, Jun (Wang, Jun.) [2] | Qiao, Shujie (Qiao, Shujie.) [3] | Li, Nanwen (Li, Nanwen.) [4] | Guo, Zhiyong (Guo, Zhiyong.) [5] (Scholars:郭智勇)

Indexed by:

EI Scopus SCIE

Abstract:

Covalent organic framework (COF)-based membranes are burgeoning candidates for separation technologies owing to their well-ordered channel structures. However, it is still a significant challenge to obtain high-quality COF membranes with a mild and convenient preparation strategy. In this paper, we adopted a simple liquidliquid interfacial polymerization method to manufacture a self-standing COF membrane with decent crystallinity at room temperature. Aldehyde monomer and catalyst were dissolved in water as the bottom layer and the amine monomer was dissolved in ethyl acetate as the top layer, and new COF membranes were subsequently obtained by interfacial polymerization in the two-phase interface. The synthetic conditions including precursor and catalyst dosage were further optimized, and thus-synthesized PDA-TAPB-ABC membrane displayed a stable rejection to MB of 97.57% with a high water permeance of up to 101. 32 L m-(2)h(-1)bar(-1). Its dyes separation performance was much better than their AA-stacking counterpart. Moreover, the prepared membrane endowed favorable chemical stability and long-term durability.

Keyword:

ABC-Stacking Covalent organic frameworks Dye separation Rejection Self-standing membrane

Community:

  • [ 1 ] [Wang, Jiande]Fuzhou Univ, Coll Mat Sci & Engn, Fuzhou 350108, Peoples R China
  • [ 2 ] [Wang, Jun]Fuzhou Univ, Coll Mat Sci & Engn, Fuzhou 350108, Peoples R China
  • [ 3 ] [Qiao, Shujie]Fuzhou Univ, Coll Mat Sci & Engn, Fuzhou 350108, Peoples R China
  • [ 4 ] [Guo, Zhiyong]Fuzhou Univ, Coll Mat Sci & Engn, Fuzhou 350108, Peoples R China
  • [ 5 ] [Li, Nanwen]Chinese Acad Sci, Inst Coal Chem, Natl Key Lab High Efficiency & Low Carbon Utilizat, Taiyuan 030001, Peoples R China

Reprint 's Address:

  • 郭智勇

    [Guo, Zhiyong]Fuzhou Univ, Coll Mat Sci & Engn, Fuzhou 350108, Peoples R China;;[Li, Nanwen]Chinese Acad Sci, Inst Coal Chem, Natl Key Lab High Efficiency & Low Carbon Utilizat, Taiyuan 030001, Peoples R China

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Source :

POLYMER

ISSN: 0032-3861

Year: 2024

Volume: 300

4 . 1 0 0

JCR@2023

Cited Count:

WoS CC Cited Count: 28

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 3

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