Enhancing in-situ tetracycline degradation in urine environment using boron-modified sewage sludge biochar: Mechanism of carbonate radical promotion

Kang, Xudong; Wang, Liping; Song, Jiabao; Zhang, Qiuya

doi:10.1016/j.cej.2024.152588

Chemical Engineering Journal

2024

DOI: 10.1016/j.cej.2024.152588

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Enhancing in-situ tetracycline degradation in urine environment using boron-modified sewage sludge biochar: Mechanism of carbonate radical promotion

Xudong Kang,

Liping Wang,

Jiabao Song

et al.

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Cited by 3 publications

References 52 publications

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A study on the role of high-energy holes and reactive oxygen species in photocatalytic degradation using oxygen-doped/biochar-modified 2D carbon nitride

Li,

Zhang,

Liu

et al. 2024

Journal of Water Process Engineering

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A study on the role of high-energy holes and reactive oxygen species in photocatalytic degradation using oxygen-doped/biochar-modified 2D carbon nitride

Li,

Zhang,

Liu

et al. 2024

Journal of Water Process Engineering

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Key role of π-π interactions for highly efficient removal of organic pollutants from water using boron-doped biochar

Yi,

Fu,

Yang

et al. 2025

Journal of Water Process Engineering

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Investigation of tetracycline degradation by activating persulfate with lotus leaf biochar: source of active substance and toxicity evaluation

Xu,

Song,

Guo

et al. 2024

Water Science &Amp; Technology

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This study withered lotus leaves as a precursor to prepare lotus leaf biochar (LLBC) as an activator for persulfates (PDS), targeting the oxidation and degradation of tetracycline (TC). Under neutral conditions, LLBC (LLBC = 20 mg, PDS = 4 mM, TC = 10 mg/L) exhibited the best catalytic degradation effect within 180 min, achieving 86.58% degradation. The LLBC/PDS system was tested in various water matrices, all achieving over 70% TC removal. In continuous flow column experiments, the TC removal efficiency was 61.56%. The results indicate that the LLBC/PDS system can efficiently degrade TC in real water bodies and has potential for use in continuous flow engineering. Additionally, an in-depth analysis was conducted on the active sites and reactive oxygen species (ROS) involved in the degradation of TC by the LLBC/PDS system. By analyzing the changes in the functional groups (C = O, C–O, and C = C) using XRD, FT-IR, and XPS before and after the reaction, it was determined that the primary active sites for generating ROS from activated PDS in LLBC were the C = O and C = C groups. Quenching experiments, electrochemical tests, and ESR confirmed that the ROS responsible for degrading TC in the LLBC/PDS system included both radical and non-radical pathways, with 1O2 playing the dominant role.

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Enhancing in-situ tetracycline degradation in urine environment using boron-modified sewage sludge biochar: Mechanism of carbonate radical promotion

Cited by 3 publications

References 52 publications

A study on the role of high-energy holes and reactive oxygen species in photocatalytic degradation using oxygen-doped/biochar-modified 2D carbon nitride

A study on the role of high-energy holes and reactive oxygen species in photocatalytic degradation using oxygen-doped/biochar-modified 2D carbon nitride

Key role of π-π interactions for highly efficient removal of organic pollutants from water using boron-doped biochar

Investigation of tetracycline degradation by activating persulfate with lotus leaf biochar: source of active substance and toxicity evaluation

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