Citation: Zhuo WANG, Junshan ZHANG, Shaoyan YANG, Lingyan ZHOU, Yedi LI, Yuanpei LAN. Preparation and photocatalytic performance of CeO₂-reduced graphene oxide by thermal decomposition[J]. Chinese Journal of Inorganic Chemistry, ;2024, 40(9): 1708-1718. doi: 10.11862/CJIC.20240067 shu

Preparation and photocatalytic performance of CeO₂-reduced graphene oxide by thermal decomposition

Zhuo WANG ¹ ,
Junshan ZHANG ^{1, 2} ,
Shaoyan YANG ^{1, 2} ,
Lingyan ZHOU ¹ ,
Yedi LI ¹ ,
Yuanpei LAN ^{1, 2,,}

1.
College of Materials and Metallurgy, Guizhou University, Guiyang 550025, China
2.
Guizhou Province Key Laboratory of Metallurgical Engineering and Process Energy Saving, Guiyang 550025, China

Corresponding author: Yuanpei LAN, yplan@gzu.edu.cn
Received Date: 27 February 2024
Revised Date: 11 July 2024

Figures(11)

CeCO₃OH-rGO (reduced graphene oxide) was prepared by a one-step hydrothermal method, and CeO₂-rGO composites were prepared by roasting under argon (Ar) atmosphere. The phase composition, microstructure, vacancy defects, and photoelectrochemical properties of the composites were studied by X-ray diffraction, scanning electron microscopy, X-ray photoelectron spectroscopy, UV visible diffuse reflectance spectroscopy (UV-Vis DRS), etc. The photocatalytic performance of the composites with different GO (graphene oxide) and NH₄HCO₃ addition amounts respectively were comparatively studied. It was found that the CeO₂-10rGO-15 with GO and NH₄HCO₃ addition amounts of 10 mg and 15 mmol respectively had the narrowest band-gap width (3.17 eV), and the photocatalytic degradation ratio of methylene blue (MB) could reach 80.66%. It is beneficial to the formation vacancy defect of CeO₂ and the separation of photogenic carriers for rGO loading suitably, thus promoting photocatalytic performance.
- CeO₂,
- graphene oxide,
- thermal decomposition,
- composite,
- photocatalysis
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沈阳化工大学材料科学与工程学院沈阳 110142

Preparation and photocatalytic performance of CeO2-reduced graphene oxide by thermal decomposition

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通讯作者: 陈斌, bchen63@163.com

Preparation and photocatalytic performance of CeO₂-reduced graphene oxide by thermal decomposition