Iron-rich sludge biochar triggers sodium percarbonate activation for robust sulfamethoxazole removal: Collaborative roles of reactive oxygen species and electron transfer

Mo, Zhihua; Tan, Zexing; Liang, Jialin; Guan, Zhijie; Liao, Xiaojian; Jian, Jianxiong; Liu, Hui; Li, Yihong; Dai, Wei; Sun, Shuiyu

doi:10.1016/j.cej.2022.141150

Cited by 26 publications

(8 citation statements)

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“…The enhanced degradation is ascribed to the higher availability of reactive oxygen species. However, subsequent increments in sodium percarbonate (500–1000 mg/L) loading decreased the tetracycline degradation efficiency (less than 75%) due to the scavenging properties of hydroxyl radicals using reductant H 2 O 2 . , Thus, 500 mg/L sodium percarbonate was chosen as the optimal dosage.…”

Section: Resultsmentioning

confidence: 99%

Fabrication of Efficient Na, B, and O Codoped g-C₃N₄/Polypyrrole-Carbon Black 3D Beads for Expeditious Degradation of Tetracycline via Percarbonate Activation

Balakrishnan,

Sasidharan,

Chinthala

et al. 2024

Ind. Eng. Chem. Res.

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A hybrid Na, B, and O codoped g-C 3 N 4 /polypyrrole carbon black (CCNP) hydrogel is prepared via an in situ cross-linking method for percarbonate activation under visible light irradiation. The structural, morphological, and optical characterizations proved the tuned bandgap, enriched utilization of visible light, minimum recombination ratio, and higher separation efficiency. The CCNP hydrogels could easily activate the percarbonate under visible light, leading to abundant production of reactive radicals, which aids in the degradation of tetracycline in wastewater. About 96% of tetracycline was degraded in 15 min at its natural pH. The superoxide, carbonate, and hydroxyl radicals were the important radical species in tetracycline degradation. The CCNP hydrogels also exhibited high photostability and reusability up to six cycles. The tetracycline degradation pathway is given a special focus, and the percarbonate activation mechanism is highlighted. This study provides a new strategy for boosting the performance of g-C 3 N 4 -based catalysts for percarbonate activation and wastewater remediation.

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Section: Resultsmentioning

confidence: 99%

Fabrication of Efficient Na, B, and O Codoped g-C₃N₄/Polypyrrole-Carbon Black 3D Beads for Expeditious Degradation of Tetracycline via Percarbonate Activation

Balakrishnan,

Sasidharan,

Chinthala

et al. 2024

Ind. Eng. Chem. Res.

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“…49 Nevertheless, the degradation intermediates still exhibit some level of toxicity, and therefore, further research on reducing their toxicity levels should be pursued. 50…”

Section: Resultsmentioning

confidence: 99%

Trace Mn decorating nitrogen-doped carbon electrocatalysts for self-powered bio-electro-fenton cells toward simulated wastewater treatment

Xiao,

Xiong,

et al. 2023

J. Mater. Chem. A

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“…To enhance the removal efficiency of mZVI-A, it is possible to accelerate its electron transfer process by incorporating external carbon materials. Various carbon materials are available for this purpose, including biochar, − carbon nanotubes, , graphene oxide, , among others.…”

Section: Resultsmentioning

confidence: 99%

Efficient Removal of Antimony(V) from Antimony Mine Wastewater by Micrometer Zero-Valent Iron

Gan,

Meng,

Lin

et al. 2023

Langmuir

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This paper investigates the effectiveness of two commercial micron zero-valent irons (mZVIs) in removing Sb(V) from antimony mine wastewater. The wastewater contains a range of complex components and heavy metal ions, including As(V), which can impact the removal efficiency of mZVI. The study aims to provide insights into actual working conditions and focuses on influencing factors and standard conditions. The results demonstrate that mZVI can reduce Sb(V) concentration in the mine wastewater from 3875.7 μg/L to below the drinking water standard of 5 μg/L within 2 h. Adding a small amount of mZVI every 30 min helps to maintain a high removal rate. The study confirms the existence of a reduction reaction by changing the atmospheric conditions of the reaction, and the addition of 1,10-phenanthroline highlights the important role of active Fe(II) in the adsorption and removal of Sb(V) by mZVI. Additionally, the paper presents an innovative experimental method of acid treatment followed by alkali treatment, which proves the interfacial reaction between mZVI and Sb(V). Overall, the study demonstrates that the removal of Sb(V) by mZVI entails a dual function of reduction and adsorption, highlighting the potential of mZVI in repairing Sb(V) in antimony mine wastewater.

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Iron-rich sludge biochar triggers sodium percarbonate activation for robust sulfamethoxazole removal: Collaborative roles of reactive oxygen species and electron transfer

Cited by 26 publications

References 70 publications

Fabrication of Efficient Na, B, and O Codoped g-C₃N₄/Polypyrrole-Carbon Black 3D Beads for Expeditious Degradation of Tetracycline via Percarbonate Activation

Fabrication of Efficient Na, B, and O Codoped g-C₃N₄/Polypyrrole-Carbon Black 3D Beads for Expeditious Degradation of Tetracycline via Percarbonate Activation

Trace Mn decorating nitrogen-doped carbon electrocatalysts for self-powered bio-electro-fenton cells toward simulated wastewater treatment

Efficient Removal of Antimony(V) from Antimony Mine Wastewater by Micrometer Zero-Valent Iron

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Iron-rich sludge biochar triggers sodium percarbonate activation for robust sulfamethoxazole removal: Collaborative roles of reactive oxygen species and electron transfer

Cited by 26 publications

References 70 publications

Fabrication of Efficient Na, B, and O Codoped g-C3N4/Polypyrrole-Carbon Black 3D Beads for Expeditious Degradation of Tetracycline via Percarbonate Activation

Fabrication of Efficient Na, B, and O Codoped g-C3N4/Polypyrrole-Carbon Black 3D Beads for Expeditious Degradation of Tetracycline via Percarbonate Activation

Trace Mn decorating nitrogen-doped carbon electrocatalysts for self-powered bio-electro-fenton cells toward simulated wastewater treatment

Efficient Removal of Antimony(V) from Antimony Mine Wastewater by Micrometer Zero-Valent Iron

Contact Info

Product

Resources

About

Fabrication of Efficient Na, B, and O Codoped g-C₃N₄/Polypyrrole-Carbon Black 3D Beads for Expeditious Degradation of Tetracycline via Percarbonate Activation

Fabrication of Efficient Na, B, and O Codoped g-C₃N₄/Polypyrrole-Carbon Black 3D Beads for Expeditious Degradation of Tetracycline via Percarbonate Activation