文献类型：期刊文献

英文题名：Plasmonic active "hot carriers" facilitating photocatalytic CO2 reduction and 2,4-dichlorophenol oxidation over Bi-deposited BiOBr with abundant oxygen vacancies

作者：Yang, Qiang[1] Tian, Qingwen[1,3] Li, Xiang[1] Zhu, Yawei[1] Fang, Guigan[1,2,3]

第一作者：Yang, Qiang

机构：[1] Institute of Chemical Industry of Forest Products, Chinese Academy of Forestry, Key Lab. of Biomass Energy and Material, Co-Innovation Center of Efficient Processing and Utilization of Forest Resource, Key Lab. of Chemical Engineering of Forest Products, National Forestry and Grassland Administration, National Engineering Research Center of Low-Carbon Processing and Utilization of Forest Biomass, Jiangsu Province, Nanjing, 210042, China; [2] Nanjing Forestry University, Nanjing, 210037, China; [3] Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, College of Light Industry and Food Engineering, Guangxi University, Nanning, 530004, China

年份：2024

卷号：332

外文期刊名：Separation and Purification Technology

收录：EI(收录号：20240215348217);Scopus(收录号：2-s2.0-85181582670)

语种：英文

外文关键词：Bismuth compounds - Bromine compounds - Carbon dioxide - Charge transfer - Hot carriers - Oxygen vacancies - Plasmonics - Surface plasmon resonance

摘要：Plasmon-induced semiconductors have attracted considerable interest in photocatalysis. Herein, this work describes the tremendous potential of plasmonic photocatalysts in photocatalytic CO2 reduction and 2,4-DCP oxidation. BiOBr with high concentrations of plasmonic Bi and oxygen vacancies were synthesized by reductive propylene glycol and lignin. Bi0.908O0.862Br exhibited excellent photocatalytic efficiency of CO2 reduction (CO: 62.94 μmol g-1h?1) and 2,4-DCP oxidation (94.65 %), which was attributed to the surface plasmon resonance (SPR) effect based on the experiments and DFT theoretical simulation. As demonstrated, the SPR effect induced by plasmonic Bi and oxygen vacancies can not only rationally enlarge the light-responsive region, but also induce abundant "hot carriers" and photothermal effect, eventually lowering the energy barriers of photocatalytic reactions. Meanwhile, a bulk-to-surface charge transfer channel was created to realize the high separation efficiency of photogenerated carriers. Moreover, plasmonic Bi and oxygen vacancies could act as adsorption sites to promote the activation of CO2 and O2 substrates. This work provides a new perspective for designing plasmonic photocatalysts to realize environmental remediation and energy conversion. ? 2023 Elsevier B.V.