Highly graphitized biochar as nonmetallic catalyst to activate peroxymonosulfate for persistent quinclorac removal in soil through both free and non-free radical pathways

Wen, Yujiao; Liu, Lide; He, Dong; Wu, Jinmeng; Yang, Wenzhi; Li, Shikai; Wang, Shiya; Su, Lezhu; Zhou, Zhi; Zhou, Zhonghua; Zhou, Nan

doi:10.1016/j.cej.2023.148082

Chemical Engineering Journal

2024

DOI: 10.1016/j.cej.2023.148082

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Highly graphitized biochar as nonmetallic catalyst to activate peroxymonosulfate for persistent quinclorac removal in soil through both free and non-free radical pathways

Yujiao Wen,

Lide Liu,

Dong He

et al.

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Cited by 9 publications

References 62 publications

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Application of Biochar-Based Catalysts for Soil and Water Pollution Control

Jin,

Zhou,

et al. 2024

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Application of Biochar-Based Catalysts for Soil and Water Pollution Control

Jin,

Zhou,

et al. 2024

Top Catal

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Glucose-montmorillonite hydrochar composite activating peroxymonosulfate for sulfentrazone rapid degradation and phytotoxicity alleviation to rice

Yi,

Mo,

Zhou

et al. 2024

Crop Health

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Sulfentrazone is an excellent herbicide for the control of broad-leaved weeds and some grasses. However, its herbicidal residues pose potential risks to the environment. The use of carbonaceous materials as catalysts for activating peroxymonosulfate (PMS) for managing pesticide contamination has attracted considerable attention. Herein, the rapid degradation of sulfentrazone in water and the alleviation of sulfentrazone-induced phytotoxicity alleviation to rice were investigated using glucose-montmorillonite hydrochar (GM-HC) activating PMS. The findings revealed that the GM-HC/PMS system can rapidly degrade sulfamethoxazole and achieved 93.90% of removal efficiency in 24 h. Specifically, GM-HC activating PMS generated the active species, including sulfate radicals (SO4•–), singlet oxygens (1O2) and superoxide radicals (O2•−), which speeds up the degradation of sulfentrazone. Five major degradation products of sulfentrazone and two possible degradation pathways were proposed. The C-Cl and C-CH3 of sulfentrazone molecules are the initiation sites attacked by active species for degradation according to density functional theory (DFT) calculation. Additionally, after the sulfentrazone was degraded by GM-HC/PMS system, sulfentrazone-induced phytotoxicity to rice seeds and seedlings was significantly alleviated. This work presents a novel approach for addressing herbicide wastewater pollution. Graphical Abstract

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Cerium-regulated Mg3FeO4@biochar activated persulfate to enhance degradation of aqueous tetracycline: The dominant role of cerium

Liu,

Zhu,

et al. 2025

Applied Surface Science

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Highly graphitized biochar as nonmetallic catalyst to activate peroxymonosulfate for persistent quinclorac removal in soil through both free and non-free radical pathways

Cited by 9 publications

References 62 publications

Application of Biochar-Based Catalysts for Soil and Water Pollution Control

Application of Biochar-Based Catalysts for Soil and Water Pollution Control

Glucose-montmorillonite hydrochar composite activating peroxymonosulfate for sulfentrazone rapid degradation and phytotoxicity alleviation to rice

Cerium-regulated Mg3FeO4@biochar activated persulfate to enhance degradation of aqueous tetracycline: The dominant role of cerium

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