Preparation of ZIF-8@PEBAX/PVDF nanocomposite membrane by the combination of self-assembly and <i>in</i>-<i>situ</i> growth for removing thiophene from the model gasoline

Zhesai Zhao; Qingwen Han; Wenwen He; Xiaolong Han

doi:10.1016/j.cjche.2023.06.019

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Preparation of ZIF-8@PEBAX/PVDF nanocomposite membrane by the combination of self-assembly and in-situ growth for removing thiophene from the model gasoline

Full Length Article | Updated：2026-01-06

- Preparation of ZIF-8@PEBAX/PVDF nanocomposite membrane by the combination of self-assembly and in-situ growth for removing thiophene from the model gasoline
- Chinese Journal of Chemical Engineering Vol. 64, Issue 12, Pages: 177-187(2023)
- Affiliations：
  
  1. School of Chemical Engineering, Northwest University,Xi'an,China,710069
  2. Hubei Three Gorges Laboratory,Yichang,China,443007
  3. School of Chemistry and Life Science, Advanced Institute of Materials Science, Changchun University of Technology,Changchun,China,130012
- Author bio：
- Funds：
- DOI：10.1016/j.cjche.2023.06.019
  CLC：
- Published：2023
- Accepted：
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DOI：

- DOI： 10.1016/j.cjche.2023.06.019.

摘要

Abstract

Metal-organic frameworks (MOFs) have gained attention in the development of MOFs/polymer hybrid membranes for pervaporation. However

the agglomeration of MOFs particles and interfacial defects limit its further application. In this study

we present a novel approach to fabricate a ZIF-8@PEBAX/PVDF nanocomposite membrane for removing thiophene from the model gasoline by combination of self-assembly and

situ

growth. Firstly

a PVDF supporting membrane was modified to have a negative charge. Next

positively charged zinc ions were attracted onto the negatively charged PVDF supporting membrane through electrostatic interaction. Afterwards

the Zinc ions deposited PVDF membrane was immersed into dimethylimidazole solution to form a uniform ZIF-8 layer. Finally

the ZIF-8 layer was coated with poly (ether-block-amide) (PEBAX) using the pouring method. Experimental results showed that the separating efficiency of the ZIF-8@PEBAX/PVDF nanocomposite membrane was improved significantly compared to that of pristine PEBAX membrane. The optimal permeation flux and enrichment factor of membrane were 27.80 kg·(m

·h)

-1

and 6.

respectively.

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Preparation of ZIF-8@PEBAX/PVDF nanocomposite membrane by the combination of self-assembly and in-situ growth for removing thiophene from the model gasoline

DOI：10.1016/j.cjche.2023.06.019

摘要

Abstract

关键词

Keywords

references