文献类型：期刊文献

英文题名：Defective Bi@BiOBr/C microrods derived from Bi-MOF for efficient photocatalytic NO abatement: Directional regulation of interfacial charge transfer via carbon-loading

作者：Li, Ximing[1];Dong, Qibing[1];Li, Fei[1,4,5];Zhu, Qiuhui[1];Tian, Qingyun[1];Tian, Lin[1];Zhu, Yiyin[1];Pan, Bao[2];Padervand, Mohsen[3];Wang, Chuanyi[1]

机构：[1]Shaanxi Univ Sci & Technol, Sch Environm Sci & Engn, Xian 710021, Peoples R China;[2]Shaanxi Univ Sci & Technol, Sch Chem & Chem Engn, Xian 710021, Peoples R China;[3]Univ Maragheh, Fac Sci, Dept Chem, POB 55181-83111, Maragheh, Iran;[4]East China Univ Sci & Technol, Ctr Computat Chem, Key Lab Adv Mat, Shanghai 200237, Peoples R China;[5]East China Univ Sci & Technol, Res Inst Ind Catalysis, Sch Chem & Mol Engn, Shanghai 200237, Peoples R China

年份：2024

卷号：340

外文期刊名：APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY

收录：;EI(收录号：20233614697660);WOS:【SCI-EXPANDED(收录号:WOS:001076231400001)】；

基金：This work was supported by the National Natural Science Foundation of China (52161145409, 21976116) , SAFEA of China ("Belt and Road" Innovative Talent Exchange Foreign Expert Project #2021041001L) (High-end Foreign Expert Project) , Iran National Science Foundation(INSF) (4001153) , and Alexander-von-Humboldt Foundation of Germany (Group-Linkage Program) .r (INSF) (4001153) , and Alexander-von-Humboldt Foundation of Ger-many (Group-Linkage Program) .

语种：英文

外文关键词：Electron-modulation engineering; Hierarchical Bi@BiOBr/C microrods; NO removal; Ohmic contact; Surface plasmon resonance

摘要：The implementation of precisely directional electron transfer at the interface of catalysts is still considered a huge challenge. Herein, hierarchical Bi@BiOBr/C microrods derived from a novel Bi-MOF were employed as a model to precisely construct the atomic-level interface electrons transfer channels via carbon-bismuth bonding. The optimized Bi@BiOBr/C with plasmonic Bi and oxygen vacancies exhibited a photocatalytic removal efficiency of 69.5 % for ppb-level atmospheric NO, which is 3.5 times higher than that of pure BiOBr (19.8 %). The enhanced photocatalytic performance is owing to precisely constructed electron transport channels with loaded graphitic carbon as a bridge (i.e., BiOBr -> graphitic carbon -> Bi nanoparticles). Further DFT calculations demonstrated the built-in graphitic carbon reconstructs an Ohmic contact with BiOBr and eliminates the Schottky barrier between BiOBr and Bi nanoparticles, enhancing the photoelectron transfer efficiency. This research represents an exciting case for the modulation of photoelectron transfer at the catalysts interface for air purification.