Citation: Wan-Yin Gao, Xiao-Qiang Cao, Li-Fei Hou, Hao-Yun Lu, Zhao-Jing Zhu, Wen-Jia Kong, Yang Zhang, Yi-Zhen Zhang, Ya-Nan Shang, Xing Xu. Electron transfer chemistry triggered by silicon-doped carbon catalysts derived from natural minerals for the degradation of organic pollutants[J]. Chinese Chemical Letters, ;2026, 37(1): 111095. doi: 10.1016/j.cclet.2025.111095 shu

Electron transfer chemistry triggered by silicon-doped carbon catalysts derived from natural minerals for the degradation of organic pollutants

Wan-Yin Gao ^{a, b} ,
Xiao-Qiang Cao ^{a, b, *,} ,
Li-Fei Hou ^{a, b} ,
Hao-Yun Lu ^{a, b} ,
Zhao-Jing Zhu ^d ,
Wen-Jia Kong ^e ,
Yang Zhang ^{a, b} ,
Yi-Zhen Zhang ^{a, b} ,
Ya-Nan Shang ^{a, b, *,} ,
Xing Xu ^c

a.
College of Safety and Environmental Engineering, Shandong University of Science and Technology, Qingdao 266590, China
b.
Institute of Yellow River Delta Earth Surface Processes and Ecological Integrity, Shandong University of Science and Technology, Qingdao 266590, China
c.
Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Qingdao 266237, China
d.
Qingdao Ecology and Environment Bureau, West Coast New Area Branch, Qingdao 266555, China
e.
College of Resources and Environment, Key Laboratory of Agricultural Environment, Shandong Agricultural University, Tai'an 271000, China

caoxiaoqiang@sdust.edu.cn

shangyanan@sdust.edu.cn

Received Date: 22 November 2024
Revised Date: 20 January 2025
Accepted Date: 15 March 2025
Available Online: 16 March 2025

Figures(7)

In this study, we meticulously designed a layered carbon-based catalytic material to induce the degradation of a series of organic pollutants by activating peroxymonosulfate (PMS) in the PMS-based advanced oxidation processes (AOPs). Results indicated that the silicon and oxygen elements from the montmorillonite were incorporated into the catalyst matrix to form the Si-O-C structure. It was notable that the layered carbonaceous material with Si-O-C structure exhibited an outstanding catalytic effect on the synthesized layered catalytic material array, achieving over 90% removal rate of most pollutants within 60 min. It was notable that the layered carbonaceous material with Si-O-C structure exhibited an outstanding catalytic effect on the synthesized layered catalytic material array. The salt bridge system confirmed that pollutants can provide electrons to the Si-O-C/PMS system, and we verified that the electron transfer process (ETP) mechanism was the main pathway for the degradation of pollutants in the Si-O-C/PMS system via the open-circuit potential analysis. In combination with the structural properties of different pollutants, we discovered that electron-donating pollutants can supply more electrons to the Si-O-C/PMS system, thereby enhancing the ETP process. The findings of this study are anticipated to advance the development and practical application of layered carbonaceous materials-based catalysts and support the design and implementation of nanoconfined catalysts in the field of AOPs.
- Peroxymonosulfate,
- Electron transfer process,
- Antibiotics,
- Organic pollutants,
- Fenton-like reaction,
- Montmorillonite
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