CLC number:
On-line Access: 2024-08-27
Received: 2023-10-17
Revision Accepted: 2024-05-08
Crosschecked: 2023-08-18
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Zhanmei ZHANG, Yi ZHANG, Xilin CHEN, Ziran HUANG, Zuqin ZOU, Huaili ZHENG. Co3O4-ZnO/rGO catalyst preparation and rhodamine B degradation by sulfate radical photocatalysis[J]. Journal of Zhejiang University Science A, 2023, 24(8): 710-721.
@article{title="Co3O4-ZnO/rGO catalyst preparation and rhodamine B degradation by sulfate radical photocatalysis",
author="Zhanmei ZHANG, Yi ZHANG, Xilin CHEN, Ziran HUANG, Zuqin ZOU, Huaili ZHENG",
journal="Journal of Zhejiang University Science A",
volume="24",
number="8",
pages="710-721",
year="2023",
publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.A2200490"
}
%0 Journal Article
%T Co3O4-ZnO/rGO catalyst preparation and rhodamine B degradation by sulfate radical photocatalysis
%A Zhanmei ZHANG
%A Yi ZHANG
%A Xilin CHEN
%A Ziran HUANG
%A Zuqin ZOU
%A Huaili ZHENG
%J Journal of Zhejiang University SCIENCE A
%V 24
%N 8
%P 710-721
%@ 1673-565X
%D 2023
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.A2200490
TY - JOUR
T1 - Co3O4-ZnO/rGO catalyst preparation and rhodamine B degradation by sulfate radical photocatalysis
A1 - Zhanmei ZHANG
A1 - Yi ZHANG
A1 - Xilin CHEN
A1 - Ziran HUANG
A1 - Zuqin ZOU
A1 - Huaili ZHENG
J0 - Journal of Zhejiang University Science A
VL - 24
IS - 8
SP - 710
EP - 721
%@ 1673-565X
Y1 - 2023
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.A2200490
Abstract: The development of a combined photocatalytic system with peroxymonosulfate (PMS) has great potential applications in the degradation and treatment of aqueous organic pollutants. Herein, a Co3O4-ZnO/rGO was prepared by a hydrothermal method using cobalt acetate, zinc acetate, and reduced graphene oxide (rGO) as the main raw materials. The physical and chemical characteristics of the obtained catalyst were analyzed using X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), and Fourier transform infrared (FT-IR). The photocatalytic features and capacities of the catalytic materials to activate PMS were investigated. Co3O4-ZnO/rGO exhibited stronger photocatalytic activity and ability to activate PMS than Co3O4/rGO or ZnO/rGO, and significantly improved the ability of PMS and photocatalysis to synergistically degrade rhodamine B (RhB), with a degradation rate of 90.40% within 40 min. The mechanism of RhB degradation was proposed based on characterization of materials, evaluation of RhB degradation efficiency, and analysis of the active species involved. The unique particle/sheet structure of Co3O4-ZnO/rGO provides a large number of active sites, and the formation of heterojunctions between Co3O4 and ZnO improves carrier separation and transport in the reaction system. Our study offers a reference for designing more effective heterojunction catalysts based on the combination of PMS and photocatalytic technology.
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