The degradation pathways of contaminants by reactive oxygen species generated in the Fenton/Fenton-like systems

Zhang, Chi; Ding, Ning; Pan, Yuwei; Fu, Lichun; Zhang, Ying

doi:10.1016/j.cclet.2024.109579

Chinese Chemical Letters

2024

DOI: 10.1016/j.cclet.2024.109579

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The degradation pathways of contaminants by reactive oxygen species generated in the Fenton/Fenton-like systems

Chi Zhang,

Ning Ding,

Yuwei Pan

et al.

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Cited by 7 publications

References 150 publications

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Identification of transformation products from fluorinated lithium-ion battery additives TPFPB and TPFPP: forever chemicals of tomorrow?

Scholl,

Lisec,

Haase

et al. 2024

Anal Bioanal Chem

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Fluorinated organic compounds (FOCs) represent a class of synthetic chemicals distinguished by their resilient carbon–fluorine bonds, which demonstrate an ability to withstand environmental degradation over an extended period. The integration of FOCs into cutting-edge applications, including lithium-ion batteries (LiBs), presents considerable potential for environmental harm that has not yet been sufficiently addressed. This study focuses on the environmental fate of two fluorinated aromatics, tris(pentafluorophenyl)borane (TPFPB) and tris(pentafluorophenyl)phosphine (TPFPP), given their important role in improving the performance of LiBs. To achieve this, laboratory simulation methods including total oxidizable precursor assay, electrochemistry (EC), Fenton reaction, UV-C irradiation, and hydrolysis were employed. Liquid chromatography and gas chromatography coupled with high-resolution mass spectrometry were used for identification of transformation products (TPs) and prediction of their molecular formulae. Despite the structural similarity between TPFPB and TPFPP, distinct differences in electrochemical behavior and degradation pathways were observed. TPFPB readily underwent hydroxylation and hydrolysis, resulting in a wide range of 49 TPs. A total of 28 TPs were newly identified, including oligomers and highly toxic dioxins. In contrast, TPFPP degraded exclusively under harsh conditions, requiring the development of innovative conditioning protocols for EC. In total, the simulation experiments yielded nine structurally different compounds, including seven previously undescribed, partially defluorinated TPs. This study highlights the potential risks associated with the use of FOCs in LiBs and provides insight into the complex environmental behavior of FOCs. Graphical Abstract

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Identification of transformation products from fluorinated lithium-ion battery additives TPFPB and TPFPP: forever chemicals of tomorrow?

Scholl,

Lisec,

Haase

et al. 2024

Anal Bioanal Chem

View full text Add to dashboard Cite

show abstract

A critical review on application of emerging hybrid cavitation–plasma technology for remediation of wastewater effluents

Pournemati,

Habibi-Yangjeh,

Salmanzadeh-Jamadi

2024

Journal of Water Process Engineering

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Detection methodologies and mechanisms of reactive oxygen species generated in Fenton/Fenton-like processes

Zhang,

Liu,

Pan

et al. 2025

Separation and Purification Technology

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The degradation pathways of contaminants by reactive oxygen species generated in the Fenton/Fenton-like systems

Cited by 7 publications

References 150 publications

Identification of transformation products from fluorinated lithium-ion battery additives TPFPB and TPFPP: forever chemicals of tomorrow?

Identification of transformation products from fluorinated lithium-ion battery additives TPFPB and TPFPP: forever chemicals of tomorrow?

A critical review on application of emerging hybrid cavitation–plasma technology for remediation of wastewater effluents

Detection methodologies and mechanisms of reactive oxygen species generated in Fenton/Fenton-like processes

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