Hydrolytic degradation of methoxychlor by immobilized cellulase on LDHs@Fe3O4 nanocomposites-Reference-Cited by-同舟云学术

Hydrolytic degradation of methoxychlor by immobilized cellulase on LDHs@Fe3O4 nanocomposites

Published:2023-12-09 Issue:1 Volume:89 Page:170-186
ISSN:0273-1223
Container-title:Water Science & Technology
language:en
Short-container-title:

Author:

Iqbal Nazar¹,Mu Guangda¹,Dong Mengyang¹,Yang Yuxiang¹^ORCID,Huang Yan¹,Yuan Hongming²,Liu Xiangnong³,Batool Irum¹,Carlini Riccardo⁴

Affiliation:

1. a School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, China

2. b State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Jilin University, Changchun 130012, China

3. c Analysis Test Center, Yangzhou University, Yangzhou 225009, China

4. d Chemistry and Material Chemistry Department, LAS Klee-Barabino, 16146 Genova, Italy

Abstract

Abstract In this study, we synthesized Fe3O4 using the co-precipitation method and then prepared magnetic carrier LDHs@Fe3O4 by immobilizing layered double hydroxide on Fe3O4 by in situ growth method. Cellulase was immobilized on this magnetic carrier by using glutaraldehyde as a coupling agent, which can be used for degrading Methoxychlor (MXC). The results demonstrated the maximum MXC removal efficiency of 73.4% at 45 °C and pH = 6.0 with excellent reusability. Through kinetic analysis, it was found that the degradation reaction conforms to the Langmuir–Hinshelwood model and is a first-order reaction. Finally, according to the EPR analysis, the active radicals in the system were found to be OH· and the degradation mechanism was proposed in combination with LC-MS. This study provides a feasible method for degrading organochlorine pesticides, which can be used for groundwater purification.

Funder

the National Natural Science Foundation of China

Publisher

IWA Publishing

Subject

Water Science and Technology,Environmental Engineering

Link

https://iwaponline.com/wst/article-pdf/89/1/170/1352697/wst089010170.pdf

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