首页|Plasmonic Ag nanoparticles decorated MIL-101(Fe)for enhanced photocatalytic degradation of bisphenol A with peroxymonosulfate under visible-light irradiation
Plasmonic Ag nanoparticles decorated MIL-101(Fe)for enhanced photocatalytic degradation of bisphenol A with peroxymonosulfate under visible-light irradiation
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Photocatalytic activation of peroxymonosulfate(PMS)has garnered a lot of interest in the field of wastew-ater treatment.Herein,a plasmonic Ag nanoparticles decorated MIL-101(Fe)hybrid was synthesized through a photodeposition process.Upon light irradiation,the Ag/MIL-101(Fe)exhibit reinforced pho-tocatalytic activities for elimination of bisphenol A(BPA)with PMS.The optimized 2.0％Ag/MIL-101(Fe)composite presented the highest photocatalytic activity with kinetic constant k of 0.102 min-1,which was about 10-fold of the pristine MIL-101(Fe).Loading of plasmonic Ag into MIL-101(Fe)boosts photoinduced carrier separation and accelerates PMS activation to generate strong oxidative radicals.Photoelectrochem-ical tests and multiple spectroscopic studies confirmed the promoted charge carrier separation and trans-fer capability of Ag/MIL-101(Fe).Combining the results of radical trapping experiments and electron spin resonance(ESR),the formed SO4·-,·OH,·O2-and1O2had a significant role in the photocatalytic process.According to intermediate study,the degradation pathway was studied,and the possible mechanism was proposed.
PhotocatalysisMOFPeroxymonosulfatePlasmonic AgBPA
Yan Gong、Yu Ding、Qi Tang、Fei Lian、Chun Bai、Ruiyi Xie、Haijiao Xie、Xu Zhao
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School of Energy and Environmental Engineering,Hebei University of Technology,Tianjin 300401,China
Hangzhou Yanqu Information Technology Co.,Ltd.,Hangzhou 310003,China
Key Laboratory of Drinking Water Science and Technology,Research Center for Eco-Environmental Sciences,Chinese Academy of Sciences,Beijing 100085,China
河北省自然科学基金Open Foundation of Key Laboratory of Industrial Ecology and Environmental Engineering,MOE,China
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