Title: Mn <sub>0.</sub> <scp> <sub>05</sub> Cd <sub>0</sub> </scp> <sub>.</sub> <scp> <sub>95</sub> S </scp> decorated <scp>MOF</scp> ‐derived <scp> Co <sub>9</sub> S <sub>8</sub> </scp> hollow polyhedron for efficient photocatalytic hydrogen evolution
Abstract: International Journal of Energy ResearchVolume 45, Issue 9 p. 13040-13054 RESEARCH ARTICLE Mn0.05Cd0.95S decorated MOF-derived Co9S8 hollow polyhedron for efficient photocatalytic hydrogen evolution Peng Su, School of Chemistry and Chemical Engineering, North Minzu University, Yinchuan, China Ningxia Key Laboratory of Solar Chemical Conversion Technology, North Minzu University, Yinchuan, China Key Laboratory for Chemical Engineering and Technology, State Ethnic Affairs Commission, North Minzu University, Yinchuan, ChinaSearch for more papers by this authorHai Liu, Corresponding Author [email protected] School of Chemistry and Chemical Engineering, North Minzu University, Yinchuan, China Ningxia Key Laboratory of Solar Chemical Conversion Technology, North Minzu University, Yinchuan, China Key Laboratory for Chemical Engineering and Technology, State Ethnic Affairs Commission, North Minzu University, Yinchuan, China Correspondence Hai Liu and Zhiliang Jin, School of Chemistry and Chemical Engineering, North Minzu University, Yinchuan 750021, China. Email: [email protected] (H. L.); Email: [email protected] (Z. J.)Search for more papers by this authorQingxiang Ma, State Key Laboratory of High-efficiency Utilization of Coal and Green Chemical Engineering, Ningxia University, Yinchuan, ChinaSearch for more papers by this authorZhiliang Jin, Corresponding Author [email protected] orcid.org/0000-0002-3793-6588 School of Chemistry and Chemical Engineering, North Minzu University, Yinchuan, China Ningxia Key Laboratory of Solar Chemical Conversion Technology, North Minzu University, Yinchuan, China Key Laboratory for Chemical Engineering and Technology, State Ethnic Affairs Commission, North Minzu University, Yinchuan, China Correspondence Hai Liu and Zhiliang Jin, School of Chemistry and Chemical Engineering, North Minzu University, Yinchuan 750021, China. Email: [email protected] (H. L.); Email: [email protected] (Z. J.)Search for more papers by this author Peng Su, School of Chemistry and Chemical Engineering, North Minzu University, Yinchuan, China Ningxia Key Laboratory of Solar Chemical Conversion Technology, North Minzu University, Yinchuan, China Key Laboratory for Chemical Engineering and Technology, State Ethnic Affairs Commission, North Minzu University, Yinchuan, ChinaSearch for more papers by this authorHai Liu, Corresponding Author [email protected] School of Chemistry and Chemical Engineering, North Minzu University, Yinchuan, China Ningxia Key Laboratory of Solar Chemical Conversion Technology, North Minzu University, Yinchuan, China Key Laboratory for Chemical Engineering and Technology, State Ethnic Affairs Commission, North Minzu University, Yinchuan, China Correspondence Hai Liu and Zhiliang Jin, School of Chemistry and Chemical Engineering, North Minzu University, Yinchuan 750021, China. Email: [email protected] (H. L.); Email: [email protected] (Z. J.)Search for more papers by this authorQingxiang Ma, State Key Laboratory of High-efficiency Utilization of Coal and Green Chemical Engineering, Ningxia University, Yinchuan, ChinaSearch for more papers by this authorZhiliang Jin, Corresponding Author [email protected] orcid.org/0000-0002-3793-6588 School of Chemistry and Chemical Engineering, North Minzu University, Yinchuan, China Ningxia Key Laboratory of Solar Chemical Conversion Technology, North Minzu University, Yinchuan, China Key Laboratory for Chemical Engineering and Technology, State Ethnic Affairs Commission, North Minzu University, Yinchuan, China Correspondence Hai Liu and Zhiliang Jin, School of Chemistry and Chemical Engineering, North Minzu University, Yinchuan 750021, China. Email: [email protected] (H. L.); Email: [email protected] (Z. J.)Search for more papers by this author First published: 14 March 2021 https://doi.org/10.1002/er.6632 Funding information: Ningxia Low-Grade Resource High Value Utilization and Environmental Chemical Integration Technology Innovation Team Project, North Minzu University; Open Project of State Key Laboratory of High-efficiency Utilization of Coal and Green Chemical Engineering, Ningxia University, Grant/Award Number: 2018-K30 Read 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 onEmailFacebookTwitterLinked InRedditWechat Summary The photocatalytic hydrogen evolution reaction is one of the important ways to convert solar energy into renewable hydrogen. In this work, the Co9S8 hollow polyhedron was formed after sulfidation and calcination with the metal-organic framework ZIF-67. The hollow polyhedron Co9S8 provides abundant support sites for Mn0.05Cd0.95S and effectively reduces the agglomeration degree of Mn0.05Cd0.95S. The Co9S8 hollow polyhedron as the reaction site has a large specific surface area and a mesoporous structure, which is beneficial to the progress of the photocatalytic reaction. A series of tests showed that the introduction of Co9S8 hollow polyhedron significantly improved the light-trapping ability and exposed more reaction sites. Co9S8 hollow polyhedrons are used as electron capture sites, which can effectively collect electrons and induce the interface charge transfer of Mn0.05Cd0.95S to Co9S8. Because the Co9S8-Mn0.05Cd0.95S composite catalyst had a strong light-trapping ability, abundant reaction sites and Co9S8-Mn0.05Cd0.95S heterojunction accelerate the separation and transfer of charges. Therefore, the hydrogen evolution rate of the 10%Co9S8-Mn0.05Cd0.95S composite catalyst was relatively high, which was 13.369 mmol g−1 h−1. In addition, the 10%Co9S8-Mn0.05Cd0.95S composite catalyst still has good hydrogen evolution stability after four cycles. This research may supply a new idea for the preparation of high-efficiency photocatalysts with hollow structures. Novelty Statement The Co9S8 hollow polyhedron provides abundant support sites for M0.05C0.95S particles, which effectively reduces the degree of agglomeration. The Co9S8-M0.05C0.95S heterojunction catalyst not only accelerates the migration and transfer of electrons, but also provides abundant reaction sites. Therefore, the Co9S8-M0.05C0.95S composite catalyst has good catalytic activity. Volume45, Issue9July 2021Pages 13040-13054 RelatedInformation