Synthesis of novel CQDs/CeO2/SrFe12O19 magnetic separation photocatalysts and synergic adsorption-photocatalytic degradation effect for methylene blue dye removal

Shifa Wang; Huajing Gao; Leiming Fang; Qiwei Hu; Guangai Sun; Xiangyu Chen; Chuan Yu; Shengnan Tang; Xianlun Yu; Xinxin Zhao; Guangzhuang Sun; Hua Yang

Chemical Engineering Journal Advances (May 2021)

Synthesis of novel CQDs/CeO2/SrFe12O19 magnetic separation photocatalysts and synergic adsorption-photocatalytic degradation effect for methylene blue dye removal

Shifa Wang,
Huajing Gao,
Leiming Fang,
Qiwei Hu,
Guangai Sun,
Xiangyu Chen,
Chuan Yu,
Shengnan Tang,
Xianlun Yu,
Xinxin Zhao,
Guangzhuang Sun,
Hua Yang

Affiliations

Shifa Wang: School of Electronic and Information Engineering, Chongqing Three Gorges University, Chongqing, Wanzhou, 404000, China; Chongqing Key Laboratory of Geological Environment Monitoring and Disaster Early-warning in Three Gorges Reservoir Area, Chongqing Three Gorges University, Chongqing, Wanzhou, 404000, China; Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Sichuan, Mianyang, 621900, China; Correspondence author.
Huajing Gao: School of Electronic and Information Engineering, Chongqing Three Gorges University, Chongqing, Wanzhou, 404000, China; School of Science, Lanzhou University of Technology, Lanzhou 730050, China
Leiming Fang: Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Sichuan, Mianyang, 621900, China; Correspondence author.
Qiwei Hu: Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Sichuan, Mianyang, 621900, China
Guangai Sun: Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Sichuan, Mianyang, 621900, China; Correspondence author.
Xiangyu Chen: School of Electronic and Information Engineering, Chongqing Three Gorges University, Chongqing, Wanzhou, 404000, China
Chuan Yu: School of Electronic and Information Engineering, Chongqing Three Gorges University, Chongqing, Wanzhou, 404000, China
Shengnan Tang: School of Electronic and Information Engineering, Chongqing Three Gorges University, Chongqing, Wanzhou, 404000, China
Xianlun Yu: School of Electronic and Information Engineering, Chongqing Three Gorges University, Chongqing, Wanzhou, 404000, China
Xinxin Zhao: School of Electronic and Information Engineering, Chongqing Three Gorges University, Chongqing, Wanzhou, 404000, China
Guangzhuang Sun: School of Electronic and Information Engineering, Chongqing Three Gorges University, Chongqing, Wanzhou, 404000, China
Hua Yang: School of Science, Lanzhou University of Technology, Lanzhou 730050, China

Journal volume & issue: Vol. 6
p. 100089

Abstract

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A novel carbon quantum dots decorated n-n type CeO2/SrFe12O19 (CQDs/CeO2/SrFe12O19) magnetic separation photocatalyst was successfully synthesized via a hydrothermal method and gamma-ray assisted polyacrylamide gel method combined with low temperature sintering technology. To study the feasibility of CQDs/CeO2/SrFe12O19 magnetic separation photocatalyst as an adsorbent and photocatalyst to remove methylene blue (MB) dye, a series of heterostructure construction, adsorption and photocatalytic experiments were carried out. When compared with pristine CeO2, CQDs/CeO2 or SrFe12O19/CeO2, the CQDs/CeO2/SrFe12O19 magnetic separation photocatalyst exhibit a higher efficiency towards adsorption and photocatalytic degradation of MB dye molecule under simulated sunlight irradiation. The present work suggests that the CQDs/CeO2/SrFe12O19 magnetic separation photocatalyst have rapid magnetic separation, simple synthetic process, high optical absorption coefficient, excellent adsorption capacity, high photocatalytic activity, higher stability and reusability, which shows potential application for removing the organic pollutants in wastewater.

Published in Chemical Engineering Journal Advances

ISSN: 2666-8211 (Online)
Publisher: Elsevier
Country of publisher: Netherlands
LCC subjects: Technology: Chemical technology: Chemical engineering
Website: https://www.journals.elsevier.com/chemical-engineering-journal-advances

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