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Published in: Journal of Material Cycles and Waste Management 5/2022

31-07-2022 | ORIGINAL ARTICLE

Photocatalytic degradation of organic pollution by converter dust under visible light: optimization and mechanism

Authors: Zekun Zhao, Suqin Li, Penghui Guo, Xin Zhao, Yaqian Zhou, Hao Zhang

Published in: Journal of Material Cycles and Waste Management | Issue 5/2022

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Abstract

Photocatalytic decoloration pollutants using semiconducting materials have grabbed great attention in recent years. Herein, the Methylene Blue (MB) was successfully degraded in aqueous solution by using Convert Lurgi-Thyssen method dust (LT-dust) as photocatalyst under visible light. The results show that it has excellent optical properties and can be used as photocatalyst. Meanwhile, the effects of initial solution pH value, dosage of LT-dust, and H2O2 on the degradation efficiency of MB were investigated. According to the experimental results, the LT-dust exhibited extraordinary catalytic activity in the process of MB elimination. When the initial concentration of MB was 50 mg/L, the LT-dust exhibited excellent MB degradation efficiency (up to 99.17%). In addition, the degradation efficiency of MB could still reach to 90.53% after 5 cycles, which demonstrated that the LT-dust has great reusability. Furthermore, the kinetics and mechanism were also presented for providing essential insights into the light mediated reaction of MB. The hydroxyl radical (HO·) and superoxide anion (·O2) were the main components involved in the degradation of MB by LT-dust. This study realized high value-added utilization of LT-dust, and it was of great significance to use LT-dust as photocatalyst for the treatment of organic dye wastewater in the future.

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Literature
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go back to reference Guo R, Liang P, Li X, Liu Z (2021) Fabrication of a dual Z-scheme GACN/NiO/Ni3(BO3)2 composite with excellent photocatalytic activity for methylene blue and tetracycline removal. Sep Purif Technol 264:118414CrossRef Guo R, Liang P, Li X, Liu Z (2021) Fabrication of a dual Z-scheme GACN/NiO/Ni3(BO3)2 composite with excellent photocatalytic activity for methylene blue and tetracycline removal. Sep Purif Technol 264:118414CrossRef
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Metadata
Title
Photocatalytic degradation of organic pollution by converter dust under visible light: optimization and mechanism
Authors
Zekun Zhao
Suqin Li
Penghui Guo
Xin Zhao
Yaqian Zhou
Hao Zhang
Publication date
31-07-2022
Publisher
Springer Japan
Published in
Journal of Material Cycles and Waste Management / Issue 5/2022
Print ISSN: 1438-4957
Electronic ISSN: 1611-8227
DOI
https://doi.org/10.1007/s10163-022-01458-x

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