Corn Stalk-derived Manganese-nitrogen Dual-doped Carbon Materials as Two-electron Oxygen Reduction Reaction Electrocatalysts for Organic Pollutant Degradation
10.19756/j.issn.0253-3820.241474
- VernacularTitle:玉米秸秆衍生的锰氮双掺杂碳材料作为二电子氧还原电催化剂用于水系有机物降解性能分析
- Author:
Shuang CUI
1
;
Yong-Xing DIAO
;
Guang-Xing HU
;
Zhuang LI
;
Yan SHI
;
Hong-Da WANG
Author Information
1. 中国科学院长春应用化学研究所,电分析化学国家重点实验室,长春 130022;中国科学技术大学应用化学与工程学院,合肥 230026
- Keywords:
Heteroatom-doped biocarbon;
Two-electron oxygen reduction reaction;
Hydrogen peroxide;
Degradation of organic pollutants;
Electro-Fenton reaction
- From:
Chinese Journal of Analytical Chemistry
2025;53(5):698-707,中插1-中插10
- CountryChina
- Language:Chinese
-
Abstract:
The conversion of abundant and low-cost biomass waste into highly efficient two-electron oxygen reduction(ORR)electrocatalyst is an important link in the degradation of pollutants in industrial wastewater through the electro-Fenton process.In this work,porous biocarbon materials doped with manganese and nitrogen(MnNBC)were prepared from corn stalk.The H2O2 selectivity of MnNBC in acidic media was up to 81% @0.6 Vvs RHE,also MnNBC exhibited a long-term stability in a 10-h uninterrupted lifetime test.The ORR activity of MnNBC could be attributed to the synergistic effect of the hierarchical porous structure,improved defect level and heteroatom doping.Moreover,MnNBC as a cathode material for the electro-Fenton system could completely degrade four kinds of common organic dye pollutants,e.g.,Rhodamine B,methyl orange,methylene blue and crystal violet(25 mg/L),respectively,within 40?60 min.The present study provided valuable insights into the transformation of corn stalk waste into efficient cathode materials for the electro-Fenton process.
