文献类型：期刊文献

英文题名：S-Scheme BiOCl/MoSe2 Heterostructure with Enhanced Photocatalytic Activity for Dyes and Antibiotics Degradation under Sunlight Irradiation

作者：Huang, Yan[1,2];Chen, Fan[1];Guan, Zhipeng[1];Luo, Yusheng[1];Zhou, Liang[3];Lu, Yufeng[1];Tian, Baozhu[1,4];Zhang, Jinlong[1]

机构：[1]East China Univ Sci & Technol, Key Lab Adv Mat & Feringa Nobel Prize Scientist, Joint Res Ctr, Inst Fine Chem,Sch Chem & Mol Engn, 130 Meilong Rd, Shanghai 200237, Peoples R China;[2]Res Inst Phys & Chem Engn Nucl Ind, 168 Jintang Rd, Tianjin 300180, Peoples R China;[3]East China Univ Sci & Technol, State Environm Protect Key Lab Environm Risk Asse, Sch Resources & Environm Engn, 130 Meilong Rd, Shanghai 200237, Peoples R China;[4]East China Univ Sci & Technol, Key Lab Specially Funct Polymer Mat & Related Tec, Minist Educ, Shanghai 200237, Peoples R China

年份：2022

卷号：22

期号：9

外文期刊名：SENSORS

收录：;EI(收录号：20221712036770);WOS:【SCI-EXPANDED(收录号:WOS:000794646000001)】；

基金：This research was funded by the National Natural Science Foundation of China (U1862112 and 21573069), Shanghai Municipal Science and Technology Major Project (2018SHZDZX03), Program of Introducing Talents of Discipline to Universities (B16017), Fundamental Research Funds for the Central Universities (50321041917001 and 50321042017001), and Fundamental Research Funds for the Central Universities (JKD01211701).

语种：英文

外文关键词：photocatalysis; dye; antibiotics; S-scheme heterojunction; photocatalytic activity; reactive species; organic pollutant

摘要：Semiconductor photocatalysis is considered to be a promising technique to completely eliminate the organic pollutants in wastewater. Recently, S-scheme heterojunction photocatalysts have received much attention due to their high solar efficiency, superior transfer efficiency of charge carriers, and strong redox ability. Herein, we fabricated an S-scheme heterostructure BiOCl/MoSe2 by loading MoSe2 nanosheets on the surface of BiOCl microcrystals, using a solvothermal method. The microstructures, light absorption, and photoelectrochemical performances of the samples were characterized by the means of SEM, TEM, XRD, transient photocurrents, electrochemical impedance, and photoluminescence (PL) spectra. The photocatalytic activities of BiOCl, MoSe2, and the BiOCl/MoSe2 samples with different MoSe2 contents were evaluated by the degradation of methyl orange (MO) and antibiotic sulfadiazine (SD) under simulated sunlight irradiation. It was found that BiOCl/MoSe2 displayed an evidently enhanced photocatalytic activity compared to single BiOCl and MoSe2, and 30 wt.% was an optimal loading amount for obtaining the highest photocatalytic activity. On the basis of radical trapping experiments and energy level analyses, it was deduced that BiOCl/MoSe2 follows an S-scheme charge transfer pathway and center dot O-2(-), center dot OH, and h(+) all take part in the degradation of organic pollutants.