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Peer-reviewedCC BY-NC-NDEnvironmental Science and Ecotechnology

Oxygen vacancy–rich spinel oxide drives phenol polymerization via direct oxidative transfer

  • Xinchun Ye1
  • Yichuan Wang2
  • Tianlin Zhou3
  • Hu Yi4
  • Linjiang Zou1
  • Qinsong Zou1
  • Dezhi Chen1
  • Jianping Zou1
  • Xubiao Luo1
4 affiliations
  1. 1Key Laboratory of Jiangxi Province for Persistent Pollutants Prevention Control and Resource Reuse, School of Environmental and Chemical Engineering, Nanchang Hangkong University, Nanchang, 330063, China
  2. 2MOE Key Laboratory of Pollution Processes and Environmental Criteria, Nankai University, Tianjin, 300350, China
  3. 3Tianjin Key Lab for Rare Earth Materials and Applications, Nankai University, Tianjin, 300350, China
  4. 4School of Materials Science and Engineering, Beihang University, Beijing, 100191, China
Open at sourceDOICite

Abstract

Reducing oxidant consumption and avoiding toxic byproducts are critical challenges in persulfate-based advanced oxidation processes. This study presents an oxygen vacancy (Ov)-rich MnFe2O4 spinel on carbon cloth (MFOCC-Ov) enabling a direct oxidative transfer process (DOTP) for pollutant removal. Unlike conventional radical pathways, DOTP removes phenol via surface-induced polymerization, avoiding toxic by-products. Controlled Ov introduction (enhancing efficiency similarly in Mn3O4/α-FeOOH) optimizes electron structure (delocalization, narrowed bandgap, upshifted d-band center) via DFT, promoting a non-radical two-electron transfer between PMS and phenol. MD simulations confirm Ov facilitates PMS/phenol co-adsorption. The optimized MFOCC800 achieves exceptional phenol removal (nearly 100%) and TOC elimination (85.01%) with minimal PMS (PMS:PhOH=5:1). It demonstrates robust performance: >97% removal in real waters sustained operation (69.7% COD removal over 240 h continuous flow), excellent recyclability (>95% activity retention), selectivity, and efficacy in dynamic filtration for trace pollutants. This work provides a practical, oxidant-minimized DOTP strategy for sustainable water purification.

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Cite

BibTeXRIS
BibTeX
@article{ye2026oxygen,
  title = {{Oxygen vacancy–rich spinel oxide drives phenol polymerization via direct oxidative transfer}},
  author = {Xinchun Ye and Yichuan Wang and Tianlin Zhou and Hu Yi and Linjiang Zou and Qinsong Zou and Dezhi Chen and Jianping Zou and Xubiao Luo},
  journal = {Environmental Science and Ecotechnology},
  year = {2026},
  month = may,
  doi = {10.1016/j.ese.2026.100710},
  url = {https://doi.org/10.1016/j.ese.2026.100710},
  note = {CC BY-NC-ND},
}
RIS
TY  - JOUR
TI  - Oxygen vacancy–rich spinel oxide drives phenol polymerization via direct oxidative transfer
AU  - Xinchun Ye
AU  - Yichuan Wang
AU  - Tianlin Zhou
AU  - Hu Yi
AU  - Linjiang Zou
AU  - Qinsong Zou
AU  - Dezhi Chen
AU  - Jianping Zou
AU  - Xubiao Luo
PY  - 2026
DA  - 2026/05/20
JO  - Environmental Science and Ecotechnology
DO  - 10.1016/j.ese.2026.100710
UR  - https://doi.org/10.1016/j.ese.2026.100710
AB  - Reducing oxidant consumption and avoiding toxic byproducts are critical challenges in persulfate-based advanced oxidation processes. This study presents an oxygen vacancy (Ov)-rich MnFe2O4 spinel on carbon cloth (MFOCC-Ov) enabling a direct oxidative transfer process (DOTP) for pollutant removal. Unlike conventional radical pathways, DOTP removes phenol via surface-induced polymerization, avoiding toxic by-products. Controlled Ov introduction (enhancing efficiency similarly in Mn3O4/α-FeOOH) optimizes electron structure (delocalization, narrowed bandgap, upshifted d-band center) via DFT, promoting a non-radical two-electron transfer between PMS and phenol. MD simulations confirm Ov facilitates PMS/phenol co-adsorption. The optimized MFOCC800 achieves exceptional phenol removal (nearly 100%) and TOC elimination (85.01%) with minimal PMS (PMS:PhOH=5:1). It demonstrates robust performance: >97% removal in real waters sustained operation (69.7% COD removal over 240 h continuous flow), excellent recyclability (>95% activity retention), selectivity, and efficacy in dynamic filtration for trace pollutants. This work provides a practical, oxidant-minimized DOTP strategy for sustainable water purification.
SN  - 2096-9643
SN  - 2666-4984
ER  -