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Effect of Configuration on the Photocatalytic Activity of AgNPs-TiO2 System
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نویسنده
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Huanhuan Li ,Qingmeng Wu ,Lihua Liu ,Bing Zhang ,Mengting Si ,Zhong Li ,Qi Jin ,Yiqing Chen ,Jie Shen ,Yingcui Fang
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منبع
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plasmonics - 2018 - دوره : 13 - شماره : 6 - صفحه:2345 -2351
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چکیده
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this paper studies the effect of the configuration of silver nanoparticles (agnps)-tio2 on the visible-light-driven photocatalytic activity (pa). three configurations were fabricated by vacuum thermal deposition: configuration i, agnps deposited on the surface of tio2 thin films; configuration ii, agnps deposited on a glass and covered by tio2 thin films; and configuration iii, agnps deposited on the surface of tio2 thin films and covered by tio2. the pas of the three configurations were studied and compared. our study indicates that configuration ii is the most cost-efficient one, while configuration iii could obtain the highest visible light-induced pa. the maximum of pa could be achieved when the top layer of tio2 is less than 2 nm. the mechanisms were discussed from three aspects, the influence of tio2 thickness on the localized surface plasma resonance (lspr) of agnps, the separation, and the transportation of hot carriers. by this study, the most effective way to make use of the pa of tio2-agnps was scientifically searched out.
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کلیدواژه
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Photocatalytic activity ,Configuration of AgNPs-TiO2 ,LSPR of AgNPs ,Hot electrons transportation
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آدرس
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Hefei University of Technology, Department of Vacuum Science and Technology, China, Hefei University of Technology, Department of Vacuum Science and Technology, China, Hefei University of Technology, Department of Materials Science and Engineering, China, Hefei University of Technology, Department of Vacuum Science and Technology, China, Hefei University of Technology, Department of Vacuum Science and Technology, China, Fudan University, Department of Materials Science, China, Fudan University, Department of Materials Science, China, Hefei University of Technology, Department of Materials Science and Engineering, China, Fudan University, Department of Materials Science, China, Hefei University of Technology, Department of Vacuum Science and Technology, China
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Authors
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