Zirconium metal-organic framework supported highly-dispersed nanosized BiVO4for enhanced visible-light photocatalytic applications

Journal of Chemical Technology & BiotechnologyVolume 91, Issue 11 p. 2785-2792 Research Article Zirconium metal-organic framework supported highly-dispersed nanosized BiVO4 for enhanced visible-light photocatalytic applications Cong Cheng, Cong Cheng School of Chemistry and Environment, South China Normal University, Guangzhou 510006, Guangdong, ChinaSearch for more papers by this authorJianzhang Fang, Corresponding Author Jianzhang Fang fangjzh@scnu.edu.cn School of Chemistry and Environment, South China Normal University, Guangzhou 510006, Guangdong, China Guangdong Technology Research Center for Ecological Management and Remediation of Urban Water System, Guangzhou 510006, ChinaCorrespondence to: J Fang, School of Chemistry and Environment, South China Normal University, Guangzhou 510006, Guangdong, China. Email: fangjzh@scnu.edu.cnSearch for more papers by this authorShaoyou Lu, Shaoyou Lu Shenzhen Center for Disease Control and Prevention, Shenzhen 518055, ChinaSearch for more papers by this authorChaoping Cen, Chaoping Cen The Key Laboratory of Water and Air Pollution Control of Guangdong Province, South China Institute of Environmental Sciences, Guangzhou 510655, ChinaSearch for more papers by this authorYi Chen, Yi Chen School of Chemistry and Environment, South China Normal University, Guangzhou 510006, Guangdong, ChinaSearch for more papers by this authorLu Ren, Lu Ren School of Chemistry and Environment, South China Normal University, Guangzhou 510006, Guangdong, ChinaSearch for more papers by this authorWeihua Feng, Weihua Feng School of Chemistry and Environment, South China Normal University, Guangzhou 510006, Guangdong, ChinaSearch for more papers by this authorZhanqiang Fang, Zhanqiang Fang School of Chemistry and Environment, South China Normal University, Guangzhou 510006, Guangdong, China Guangdong Technology Research Center for Ecological Management and Remediation of Urban Water System, Guangzhou 510006, ChinaSearch for more papers by this author Cong Cheng, Cong Cheng School of Chemistry and Environment, South China Normal University, Guangzhou 510006, Guangdong, ChinaSearch for more papers by this authorJianzhang Fang, Corresponding Author Jianzhang Fang fangjzh@scnu.edu.cn School of Chemistry and Environment, South China Normal University, Guangzhou 510006, Guangdong, China Guangdong Technology Research Center for Ecological Management and Remediation of Urban Water System, Guangzhou 510006, ChinaCorrespondence to: J Fang, School of Chemistry and Environment, South China Normal University, Guangzhou 510006, Guangdong, China. Email: fangjzh@scnu.edu.cnSearch for more papers by this authorShaoyou Lu, Shaoyou Lu Shenzhen Center for Disease Control and Prevention, Shenzhen 518055, ChinaSearch for more papers by this authorChaoping Cen, Chaoping Cen The Key Laboratory of Water and Air Pollution Control of Guangdong Province, South China Institute of Environmental Sciences, Guangzhou 510655, ChinaSearch for more papers by this authorYi Chen, Yi Chen School of Chemistry and Environment, South China Normal University, Guangzhou 510006, Guangdong, ChinaSearch for more papers by this authorLu Ren, Lu Ren School of Chemistry and Environment, South China Normal University, Guangzhou 510006, Guangdong, ChinaSearch for more papers by this authorWeihua Feng, Weihua Feng School of Chemistry and Environment, South China Normal University, Guangzhou 510006, Guangdong, ChinaSearch for more papers by this authorZhanqiang Fang, Zhanqiang Fang School of Chemistry and Environment, South China Normal University, Guangzhou 510006, Guangdong, China Guangdong Technology Research Center for Ecological Management and Remediation of Urban Water System, Guangzhou 510006, ChinaSearch for more papers by this author First published: 07 January 2016 https://doi.org/10.1002/jctb.4885Citations: 32Read 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 Abstract BACKGROUND As a super stable zirconium based metal-organic framework, Zr6(OH)4(C8H6O4)6 (UiO-66) is considered a competitive candidate to conjugate with photocatalyst to enhance photocatalytic activity. In this study, highly dispersed bismuth vanadate (BiVO4) nanoparticles grown in situ upon the surfaces of UiO-66 were synthesized through a simple method, and the photocatalytic activities were investigated by measuring the degradation of rhodamine B (RhB) under visible light irradiation. RESULTS The results show that UiO-66@BiVO4 composite with Bi:Zr molar ratio of (1:1) was the optimum hybrid and exhibited much higher photocatalytic activities than that of pure BiVO4. Furthermore, the photocatalyitc mechanism of RhB degradation by UiO-66@BiVO4 was also investigated, the photodegradation of RhB was mainly caused by the super oxide ions (·O2−). The lone pair electrons of surface group –OH and –COOH of UiO-66 attract the photogenerated holes (h+), which effectively prevent the recombination of electrons and holes. CONCLUSIONS The enhanced separation of photogenerated electron–hole pairs through interfaces between BiVO4 and UiO-66 led to improvement of the photocatalytic activity. The study showed a degradation mechanism for RhB wasterwater treatment. © 2016 Society of Chemical Industry Citing Literature Volume91, Issue11November 2016Pages 2785-2792 RelatedInformation