文献类型：期刊文献

英文题名：Synergistic effect of adsorption and photocatalysis of BiOBr/lignin-biochar composites with oxygen vacancies under visible light irradiation

作者：Yang, Qiang[1,2,3,4,5,6] Li, Xiang[1,2,3,4,5] Tian, Qingwen[1,2,3,4,5,7] Pan, Aixiang[1,2,3,4,5] Liu, Xingjian[1,2,3,4,5] Yin, Hang[1,2,3,4,5] Shi, Yingqiao[1,2,3,4,5] Fang, Guigan[1,2,3,4,5,6]

第一作者：Yang, Qiang

通信作者：Tian, QW[1];Fang, GG[1];Tian, QW[2];Fang, GG[2];Tian, QW[3];Fang, GG[3];Tian, QW[4];Fang, GG[4];Tian, QW[5];Fang, GG[5]

机构：[1]Chinese Acad Forestry, Inst Chem Ind Forest Prod, Nanjing 210042, Peoples R China;[2]Key Lab Biomass Energy & Mat, Nanjing 210042, Jiangsu, Peoples R China;[3]Coinnovat Ctr Efficient Proc & Utilizat Forest Res, Nanjing 210042, Jiangsu, Peoples R China;[4]Natl Forestry & Grassland Adm, Key Lab Chem Engn Forest Prod, Nanjing 210042, Peoples R China;[5]Natl Engn Res Ctr Low Carbon Proc & Utilizat Fores, Nanjing 210042, Peoples R China;[6]Nanjing Forestry Univ, Nanjing 210037, Peoples R China;[7]Guangxi Univ, Coll Light Ind & Food Engn, Guangxi Key Lab Clean Pulp & Papermaking & Pollut, Nanning 530004, Peoples R China

年份：2023

卷号：117

起止页码：117-129

外文期刊名：JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY

收录：;EI(收录号：20224413034557);Scopus(收录号：2-s2.0-85140751729);WOS:【SCI-EXPANDED(收录号:WOS:000907631400009)】；

基金：The Project Supported by Jiangsu Key Laboratory for Biomass Energy and Material (JSBEM-S-202207), the Foundation (No.2021KF13) of Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, College of Light Industry and Food Engineering, Guangxi University and Taishan Industrial Experts Programme (tscy20200213).

语种：英文

外文关键词：BiOBr; Lignin-biochar; Adsorption and photocatalysis; Oxygen vacancies; RhB

摘要：Effective utilization solar energy through photocatalysis is an ideal way to solve environmental problems and achieve sustainable development. Herein, a novel BiOBr/Lignin-Biochar photocatalyst has been suc-cessfully synthesized by a simple hydrothermal method. The number of oxygen vacancies of BiOBr increased after C doping, which improves visible-light absorbance, reduces the recombination of photo-generated carriers and promotes O2 activation to produce .O-2?. UV-vis DRS result demonstrated that the visible-light absorption capacity of BiOBr improved significantly with the addition of lignin. Compared with BiOBr, the adsorption and photocatalytic ability of BiOBr/Lignin-Biochar composites were greatly enhanced due to enriched oxygen vacancies and the congenerous effect between BiOBr and lignin-biochar. The RhB removal with pure BiOBr and BiOBr/Lignin-Biochar under visible-light irradiation at 60 min was 54.5% and 99.2%, respectively, owing to the interface interaction between BiOBr and lignin-biochar promoted the separation between electron and holes and the enrichment of RhB around the pho-tocatalysts. Notably, the bandgap of BiOBr/Lignin-Biochar composites decreased from 2.65 eV to 2.56 eV after C doping, useful for visible-light-driven photocatalysis. The superoxide radical anions (.O2?) were the main active species, as demonstrated by free radical capture experiments and ESR characterization results. Hence, the present work provides new insights into constructing cost-effective, high-efficiency composite materials for environmental remediation. (c) 2022 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.