A BiOCl/β-FeOOH heterojunction for HER photocatalytic performance under visible-light illumination

International Journal of Energy ResearchVolume 43, Issue 6 p. 2162-2171 RESEARCH ARTICLE A BiOCl/β-FeOOH heterojunction for HER photocatalytic performance under visible-light illumination Wei Li, Corresponding Author Wei Li liweihg@sust.edu.cn orcid.org/0000-0003-4071-4836 College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi'an, China Shaanxi Key Laboratory of Chemical Additives for Industry, Shaanxi University of Science and Technology, Xi'an, China Correspondence Wei Li, College of Chemistry and Chemical Engineering, Shaanxi University of Science & Technology, Xi'an 710021, China. Email: liweihg@sust.edu.cn Chen-hui Zhao, Department of Applied Chemistry, College of Science, Northwestern Polytechnical University, Xi'an 710072, China. Email: zhaoch@nwpu.edu.cnSearch for more papers by this authorShu-ao He, Shu-ao He National Demonstration Center for Experimental Light Chemistry Engineering Education, Shaanxi University of Science and Technology, Xi'an, China Shaanxi Key Laboratory of Chemical Additives for Industry, Shaanxi University of Science and Technology, Xi'an, ChinaSearch for more papers by this authorXiao Wang, Xiao Wang College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi'an, China Shaanxi Key Laboratory of Chemical Additives for Industry, Shaanxi University of Science and Technology, Xi'an, ChinaSearch for more papers by this authorQiong Ma, Qiong Ma National Demonstration Center for Experimental Light Chemistry Engineering Education, Shaanxi University of Science and Technology, Xi'an, China Shaanxi Key Laboratory of Chemical Additives for Industry, Shaanxi University of Science and Technology, Xi'an, ChinaSearch for more papers by this authorChen-hui Zhao, Corresponding Author Chen-hui Zhao zhaoch@nwpu.edu.cn Department of Applied Chemistry, College of Science, Northwestern Polytechnical University, Xi'an, China Correspondence Wei Li, College of Chemistry and Chemical Engineering, Shaanxi University of Science & Technology, Xi'an 710021, China. Email: liweihg@sust.edu.cn Chen-hui Zhao, Department of Applied Chemistry, College of Science, Northwestern Polytechnical University, Xi'an 710072, China. Email: zhaoch@nwpu.edu.cnSearch for more papers by this author Wei Li, Corresponding Author Wei Li liweihg@sust.edu.cn orcid.org/0000-0003-4071-4836 College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi'an, China Shaanxi Key Laboratory of Chemical Additives for Industry, Shaanxi University of Science and Technology, Xi'an, China Correspondence Wei Li, College of Chemistry and Chemical Engineering, Shaanxi University of Science & Technology, Xi'an 710021, China. Email: liweihg@sust.edu.cn Chen-hui Zhao, Department of Applied Chemistry, College of Science, Northwestern Polytechnical University, Xi'an 710072, China. Email: zhaoch@nwpu.edu.cnSearch for more papers by this authorShu-ao He, Shu-ao He National Demonstration Center for Experimental Light Chemistry Engineering Education, Shaanxi University of Science and Technology, Xi'an, China Shaanxi Key Laboratory of Chemical Additives for Industry, Shaanxi University of Science and Technology, Xi'an, ChinaSearch for more papers by this authorXiao Wang, Xiao Wang College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi'an, China Shaanxi Key Laboratory of Chemical Additives for Industry, Shaanxi University of Science and Technology, Xi'an, ChinaSearch for more papers by this authorQiong Ma, Qiong Ma National Demonstration Center for Experimental Light Chemistry Engineering Education, Shaanxi University of Science and Technology, Xi'an, China Shaanxi Key Laboratory of Chemical Additives for Industry, Shaanxi University of Science and Technology, Xi'an, ChinaSearch for more papers by this authorChen-hui Zhao, Corresponding Author Chen-hui Zhao zhaoch@nwpu.edu.cn Department of Applied Chemistry, College of Science, Northwestern Polytechnical University, Xi'an, China Correspondence Wei Li, College of Chemistry and Chemical Engineering, Shaanxi University of Science & Technology, Xi'an 710021, China. Email: liweihg@sust.edu.cn Chen-hui Zhao, Department of Applied Chemistry, College of Science, Northwestern Polytechnical University, Xi'an 710072, China. Email: zhaoch@nwpu.edu.cnSearch for more papers by this author First published: 06 March 2019 https://doi.org/10.1002/er.4420Citations: 10Read the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinkedInRedditWechat Summary β-iron oxide hydroxide (β-FeOOH) had been proven to be an effective co-catalyst during H2 evolution reaction (HER) process. In this research, a BiOCl/β-FeOOH heterojunction was successfully synthesized by a solid-state doping method. Then, the structure, composition, and photo-electrochemical properties of the prepared photocatalysts were studied. For the superior HER photocatalytic activity of ultrasmall β-FeOOH nanoparticles (NPs) and the formation of the BiOCl/β-FeOOH heterojunction, this heterojunction photocatalyst exhibited very superior photocatalytic performance in the HER process. Especially, when the amount of incorporated β-FeOOH NPs was appropriate, the BFOH-2 possessed the highest photocatalytic activity in HER process, and the HER rate was about 16.64 mmol·g−1·h−1 during illuminated time of 6 hours under visible light. When appropriate, ultrasmall β-FeOOH NPs were implanted into the structure of BiOCl, the BiOCl/β-FeOOH heterojunction interfaces would form for the existence of interfacial interactions. Therefore, this BiOCl/β-FeOOH heterojunction exhibited superior visible-light response, fast photo-carrier migration, and high-efficient separation of photo-carriers, so that the BFOH-2 heterojunction possessed high-efficient hydrogen evolution reaction (HER) photocatalytic activity. Citing Literature Supporting Information Filename Description er4420-sup-0001-DataS1.docxWord 2007 document , 375.8 KB Figure S1 EDX spectrum of BFOH-2. Table S1 Analysis of EDX spectrum from area. Figure S2 XPS spectra of BFOH-2: (a) Bi 4f and (b) Cl 2p core-level spectra. Table S2 Photoelectrocatalytic performance summary of the samples for HER. Figure S3 Tafel curves of the samples: (a) BiOCl, (b) BCP-1, (c) BCP-2 and (d) BCP-3. Figure S4 XPS VBs of β-FeOOH NPs. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article. Volume43, Issue6May 2019Pages 2162-2171 RelatedInformation