Enhancing laccase stability and activity for dyes decolorization using ZIF-8@MWCNT nanocomposite

Pascal Habimana; Yanjun Jiang; Jing Gao; Jean Bernard Ndayambaje; Osama M. Darwesh; Jean Pierre Mwizerwa; Xiaobing Zheng; Li Ma

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Enhancing laccase stability and activity for dyes decolorization using ZIF-8@MWCNT nanocomposite

Updated：2026-01-06

- Enhancing laccase stability and activity for dyes decolorization using ZIF-8@MWCNT nanocomposite
- Enhancing laccase stability and activity for dyes decolorization using ZIF-8@MWCNT nanocomposite
- 中国化学工程学报（英文版） 2022年48卷第8期页码：66-75
- Affiliations：
  
  1. School of Chemical Engineering and Technology, Hebei University of Technology,Tianjin,China,300130
  2. University of Rwanda, College of Science and Technology, Kigali,Rwanda,3900
  3. Department of Agricultural Microbiology, National Research Centre,Cairo,Egypt,12622
  4. College of Mechatronics and Control Engineering, Shenzhen University,Shenzhen,China,518060
- Author bio：
- Funds：
- DOI：
  中图分类号：
- 纸质出版：2022
- Accepted：
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Pascal Habimana, Yanjun Jiang, Jing Gao, 等. Enhancing laccase stability and activity for dyes decolorization using ZIF-8@MWCNT nanocomposite[J]. 中国化学工程学报（英文版）, 2022,48(8):66-75.

Pascal Habimana, Yanjun Jiang, Jing Gao, Jean Bernard Ndayambaje, Osama M. Darwesh, Jean Pierre Mwizerwa, Xiaobing Zheng, Li Ma. Enhancing laccase stability and activity for dyes decolorization using ZIF-8@MWCNT nanocomposite[J]. Chinese Journal of Chemical Engineering, 2022, 48(8): 66-75.
Pascal Habimana, Yanjun Jiang, Jing Gao, 等. Enhancing laccase stability and activity for dyes decolorization using ZIF-8@MWCNT nanocomposite[J]. 中国化学工程学报（英文版）, 2022,48(8):66-75. DOI：

Pascal Habimana, Yanjun Jiang, Jing Gao, Jean Bernard Ndayambaje, Osama M. Darwesh, Jean Pierre Mwizerwa, Xiaobing Zheng, Li Ma. Enhancing laccase stability and activity for dyes decolorization using ZIF-8@MWCNT nanocomposite[J]. Chinese Journal of Chemical Engineering, 2022, 48(8): 66-75. DOI：

摘要

Abstract

The continuous use of chemical dyes in various industries

and their discharge into industrial effluents

results in severe problems to human life and water pollution. Laccases have the ability to decolorize dyes and toxic chemicals in industrial effluents as green biocatalysts. Their possible industrial applications have been limited by poor reusability

low stability

and loss of free laccase action. In this research

laccase was immobilized on zeolitic imidazolate framework coated multi-walled carbon nanotubes (Laccase@ZIF-8@MWCNTs)

via

metal affinity adsorption to develop an easy separable and stable enzyme. The optimum reaction conditions for immobilized laccase are at a pH of 3.0 and a temperature of 60?℃. The immobilized laccase was enhanced in storage and thermal stability. The results indicated that Laccase@ZIF-8@MWCNTs still maintained 68% of its original activity after 10 times of repeated use. Most importantly

the biocatalytic system was applied for decolorization of different dyes (20?mg·L

) without a mediator

and up to 97.4% for Eriochrome black T and 95.6% Acid red 88 was achieved in 25 min. Biocatalysts with these properties may be used in a variety of environmental and industrial applications.

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