Synthesis of N-doped porous biochar from chemical pollutant for efficient sulfadiazine degradation: Performance, mechanism and bio-toxicity assessment

Li, Qiuyan; Fu, Fangyu; Yan, Jiaying; Ding, Shun; Pang, Kun; Zhang, Nuonuo; Astruc, Didier; Liu, Xiang

doi:10.1016/j.seppur.2024.128432

Separation and Purification Technology

2025

DOI: 10.1016/j.seppur.2024.128432

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Synthesis of N-doped porous biochar from chemical pollutant for efficient sulfadiazine degradation: Performance, mechanism and bio-toxicity assessment

Qiuyan Li,

Fangyu Fu,

Jiaying Yan

et al.

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Cited by 2 publications

References 61 publications

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Facile synthesis of Cu-doped manganese oxide octahedral molecular sieve for the efficient degradation of sulfamethoxazole via peroxymonosulfate activation

Qiu,

Huang,

Wang

et al. 2024

Int J Miner Metall Mater

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Facile synthesis of Cu-doped manganese oxide octahedral molecular sieve for the efficient degradation of sulfamethoxazole via peroxymonosulfate activation

Qiu,

Huang,

Wang

et al. 2024

Int J Miner Metall Mater

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Insights into the Removal of Organic Contaminants by Co-CeO₂ Nanocatalysts via CaCO₃ Activation: Performance, Kinetic, and Mechanism

Li,

Niu,

Yan

et al. 2024

Langmuir

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The advanced oxidation process based on S(IV) has garnered increasing attention, owing to its efficiency in degrading contaminants. Here, a cobalt-doped cerium oxide catalyst (Co-CeO 2 ) was employed to activate calcium sulfite (CaSO 3 ) for imidacloprid degradation. The Co-CeO 2 catalyst was characterized by using SEM, BET, XRD, and XPS techniques to analyze its structural and chemical properties. XPS analysis revealed the presence of Co 0 , Co 2+ , and Co 3+ species in the Co-CeO 2 catalyst. Compared to the CeO 2 /CaSO 3 system, the Co-CeO 2 /CaSO 3 system significantly enhanced the degradation rate of imidacloprid from 5.00% to 94.01%. Scavenging experiments, in conjunction with electron paramagnetic resonance spectroscopy, identified hydroxyl radicals ( • OH), sulfate radicals (SO 4•− ), superoxide radicals (O 2 •− ), sulfite radicals (SO 3•− ), and singlet oxygen ( 1 O 2 ) as the primary reactive species responsible for the degradation of imidacloprid within the Co-CeO 2 /CaSO 3 system. Density functional theory calculation analysis was employed to investigate the specific sites of imidacloprid attacked by reactive oxygen species, proposing four potential degradation pathways. Furthermore, the Ecological Structure Activity Relationships (ECOSAR) program predicted a significant diminution in the toxicity of intermediate products compared to imidacloprid. Even after five cycles, Co-CeO 2 maintained an excellent removal efficiency of 86.35%.

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Synthesis of N-doped porous biochar from chemical pollutant for efficient sulfadiazine degradation: Performance, mechanism and bio-toxicity assessment

Cited by 2 publications

References 61 publications

Facile synthesis of Cu-doped manganese oxide octahedral molecular sieve for the efficient degradation of sulfamethoxazole via peroxymonosulfate activation

Facile synthesis of Cu-doped manganese oxide octahedral molecular sieve for the efficient degradation of sulfamethoxazole via peroxymonosulfate activation

Insights into the Removal of Organic Contaminants by Co-CeO₂ Nanocatalysts via CaCO₃ Activation: Performance, Kinetic, and Mechanism

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Synthesis of N-doped porous biochar from chemical pollutant for efficient sulfadiazine degradation: Performance, mechanism and bio-toxicity assessment

Cited by 2 publications

References 61 publications

Facile synthesis of Cu-doped manganese oxide octahedral molecular sieve for the efficient degradation of sulfamethoxazole via peroxymonosulfate activation

Facile synthesis of Cu-doped manganese oxide octahedral molecular sieve for the efficient degradation of sulfamethoxazole via peroxymonosulfate activation

Insights into the Removal of Organic Contaminants by Co-CeO2 Nanocatalysts via CaCO3 Activation: Performance, Kinetic, and Mechanism

Contact Info

Product

Resources

About

Insights into the Removal of Organic Contaminants by Co-CeO₂ Nanocatalysts via CaCO₃ Activation: Performance, Kinetic, and Mechanism