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Ag/g-C3N4 photocatalysts: Microwave-assisted synthesis and enhanced visible-light photocatalytic activity
Affiliation:1. School of Chemistry and Chemical Engineering, Jiangsu University, China;2. School of the Environment and Safety Engineering, Jiangsu University, China;3. School of Mathematics and Physics, Jiangsu University of Science and Technology, China;1. State Key Laboratory of Materials Processing and Die & Mould Technology, Huazhong University of Science and Technology, Wuhan, 430074, Hubei, PR China;2. Nanomaterials Research Center, Nanchang Institute of Technology, Nanchang, 330013, Jiangxi, PR China;1. Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati, 781039, Assam, India;2. Department of Chemistry, University of California Irvine, Irvine, CA, 92697, USA;1. School of Materials Engineering, Suzhou Key Laboratory of Functional Ceramic Materials, Changshu Institute of Technology, Changshu,215500, China;2. School of Materials Science & Engineering, Changzhou University, Changzhou, 213164, China;3. Key Laboratory of Inorganic Functional Materials and Devices, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai,200050, China;1. Department of Materials Science and Engineering, Zhejiang Normal University, Jinhua, 321004, China;2. Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Institute of Physical Chemistry, Zhejiang Normal University, Jinhua, 321004, China;3. College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua, 321004, China
Abstract:Ag/g-C3N4 photocatalysts were synthesized by a rapid microwave-assisted polyol process. The characterization results showed monodisperse Ag nanoparticles with diameters of a few nanometers closely attached to the edges of g-C3N4. The presence of Ag nanoparticles in Ag/g-C3N4 photocatalysts enhanced the visible-light absorption and suppressed the recombination of photogenerated electron/hole pairs. The Ag/g-C3N4 photocatalysts exhibited the superior visible-light responsive photocatalytic activity for rhodamine B degradation. The mechanism of visible-light induced photocatalysis over Ag/g-C3N4 photocatalysts was also discussed.
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