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Construction of ZnCo2O4/Ag3PO4 composite photocatalyst for enhanced photocatalytic performance
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  • Jiafeng Hu,
  • Jiayi Liu,
  • Hao Hu,
  • Xiaotao Zhou,
  • Qiwei Wang,
  • Weizhi Wei,
  • Wenhui Liu
Jiafeng Hu
Chinese People's Liberation Army
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Jiayi Liu
North University of China
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Hao Hu
Chinese People's Liberation Army
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Xiaotao Zhou
Chinese People's Liberation Army
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Qiwei Wang
Army Engineering University of PLA
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Weizhi Wei
Army Engineering University of PLA
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Wenhui Liu
North University of China

Corresponding Author:[email protected]

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Abstract

In this study, a ZnCo2O4/Ag3PO4 composite catalyst was prepared by the precipitation method, and its photocatalytic degradation activity for methyl orange (MO) was studied. The catalysts were characterized by TEM, XRD, EDX, HRTEM, SAED, SEM, XPS, and UV-Vis-DRS. The results indicate that 0.1 ZnCo2O4/Ag3PO4 The composite system has a good photocatalytic degradation effect on methyl orange. Under 30-minute simulated sunlight conditions, the degradation rate can reach 94%. The results show that the maximum reaction rate constant of 0.1 ZnCo2O4/Ag3PO4 is 0.05301 min-1, which is three times the size of pure Ag3PO4 and 52 times the size of pure ZnCo2O4. After three cycles, 0.1 ZnCo2O4/Ag3PO4 still degraded methyl orange (MO) at a rate of 84.4%. The trapping experiment showed that hole (h+) and O2- played the most important roles in the photocatalytic degradation field of methyl orange (MO) by 0.1 ZnCo2O4/Ag3PO4, and hydroxyl radical (OH·) played a partial role. The energy level structure of ZnCo2O4/Ag3PO4 is conducive to the effective separation of photogenerated electrons and holes, improving the lifespan of photogenerated charges. Among them, the photocatalytic performance of 0.1 ZnCo2O4/Ag3PO4 is the most excellent.
12 Jun 2023Submitted to Micro & Nano Letters
19 Jun 2023Submission Checks Completed
19 Jun 2023Assigned to Editor
29 Jan 20241st Revision Received
31 Jan 2024Assigned to Editor
31 Jan 2024Submission Checks Completed
31 Jan 2024Reviewer(s) Assigned
31 Jan 2024Review(s) Completed, Editorial Evaluation Pending
02 Feb 2024Editorial Decision: Accept