材料工程2025，Vol.53Issue(10)：192-199,8.DOI:10.11868/j.issn.1001-4381.2024.000154
Fe/S共掺杂g-C3N4光催化降解NO
Fe/S co-doped g-C3N4 photocatalytic degradation of NO
摘要
Abstract
Photocatalytic technology has received extensive attention from researchers because of its low cost,recyclability,and environmental friendliness.However,the photocatalytic performance of pure photocatalytic materials has certain defects,such as high electron-hole pair recombination rate and a small light response range.Therefore,these materials are often modified for practical applications.To improve the degradation performance of graphite phase carbon nitride(g-C3N4)for NO under visible light conditions,Fe/S co-doped modified g-C3N4 product Fe/SCN is prepared by thermal polymerization using melamine,thiourea,and iron nitrate as raw materials.It is found that Fe/S co-doping would destroy the triazine ring structure of g-C3N4,resulting in the disappearance of N—H bond stretching in g-C3N4,and Fe and S elements mainly existed in the form of Fe—N and Fe—S covalent bonds.At the same time,Fe/S co-doping can increase the specific surface area of g-C3N4,improve the separation efficiency of photogenerated carriers,reduce the recombination rate of electron-hole pairs,increase the transient current density,and reduce the electrical impedance,thereby improving the photocatalytic degradation performance.The experimental results of photocatalytic degradation of NO show that the degradation rate of NO by Fe/SCN-4 can reach 40.26%under visible light conditions for 2 h,and the degradation rate is 37.17%after 5 cycles,proving Fe/SCN-4 has good degradation performance and cycle stability.关键词
光催化/石墨相氮化碳/热聚合/共掺杂改性/降解NO/g-C3N4Key words
photocatalyst/graphite phase carbon nitride/thermal polymerization/co-doping modification/degrading NO/g-C3N4分类
化学化工引用本文复制引用
李立,高莉宁,张佩,祝锡爇,何锐,丁驰..Fe/S共掺杂g-C3N4光催化降解NO[J].材料工程,2025,53(10):192-199,8.基金项目
陕西省秦创原"科学家+工程师"团队建设项目(2022KXJ-004) （2022KXJ-004）
陕西省重点研发计划项目(2023-ZDLGY-25,2023-YBGY-495) （2023-ZDLGY-25,2023-YBGY-495）
陕西省交通科技项目(21-40K,22-29K,23-22K,23-91K) （21-40K,22-29K,23-22K,23-91K）
长安大学中央高校基本科研业务费专项资金资助(300102312402) （300102312402）
