分析化学2025，Vol.53Issue(5)：698-707,中插1-中插10,20.DOI:10.19756/j.issn.0253-3820.241474
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
Corn Stalk-derived Manganese-nitrogen Dual-doped Carbon Materials as Two-electron Oxygen Reduction Reaction Electrocatalysts for Organic Pollutant Degradation
摘要
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.关键词
杂原子掺杂生物碳材料/二电子氧还原反应/过氧化氢/有机物降解/电芬顿反应Key words
Heteroatom-doped biocarbon/Two-electron oxygen reduction reaction/Hydrogen peroxide/Degradation of organic pollutants/Electro-Fenton reaction引用本文复制引用
崔爽,刁永兴,胡广兴,李壮,石岩,王宏达..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[J].分析化学,2025,53(5):698-707,中插1-中插10,20.基金项目
国家重点研发计划项目(No.2024YFA1307400)、国家自然科学基金项目(Nos.22327808,22277116)和吉林省科技发展计划项目(No.SKL202302031)资助. Supported by the National Key Research and Development Project of China(No.2024YFA1307400),the National Natural Science Foundation of China(Nos.22327808,22277116)and the Scientific Development Plan of Jilin Province,China(No.SKL202302031). （No.2024YFA1307400）
