Efficient photocatalytic degradation of methylene blue over BiVO4/TiO2 nanocomposites |
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| Affiliation: | 1. Department of Physics and Materials Science, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand;2. Materials Science Research Centre, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand;3. Program of Physics, Faculty of Science, Ubon Ratchathani Rajabhat University, Ubon Ratchathani 34000, Thailand;1. State Key Lab of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150001, PR China;2. Key Laboratory of Functional Inorganic Materials Chemistry, Heilongjiang University, Ministry of Education, School of Chemistry and Materials Science, Harbin 150080, PR China;1. Department of Physics and Materials Science, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand;2. Program of Physics, Faculty of Science, Ubon Ratchathani Rajabhat University, Ubon Ratchathani 34000, Thailand;3. Materials Science Research Centre, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand;4. Department of Chemistry, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand;1. College of Science, Hebei University of Engineering, Handan 056038, China;2. College of Equipment Manufacturing, Hebei University of Engineering, Handan 056038, China;1. Research Institute of Applied Chemistry, Jiangxi Academy of Sciences, Nanchang, Jiangxi 330096, PR China;2. Research Institute of Photocatalysis, State Key Laboratory of Photocatalysis on Energy and Environment, Fuzhou University, Fuzhou 350002, PR China;1. Department of Science and Humanities, Physics, Karunya Institute of Technology and Sciences, Coimbatore 641 114, India;2. Department of Science and Humanities, Nanoscience and Technology, Karunya Institute of Technology and Sciences, Coimbatore 641 114, India |
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| Abstract: | BiVO4/TiO2 nanocomposites were successfully synthesized by coupling the modified sol-gel method with hydrothermal method. The samples were physically characterized X-ray diffraction, scanning electron microscopy, transmission electron microscopy, Brunauer, Emmett and Teller (BET)-specific surface area, UV–vis diffuse reflectance spectrophotometry, zeta potential, and photoluminescence techniques. The BiVO4/TiO2 nanocomposites exhibited good photocatalytic activity in degradation of methylene blue under simulated solar light irradiation. The photodegradation of methylene blue demonstrated that 0.5BiVO4/0.5TiO2 photocatalyst exhibited much enhanced photoactivity than pure BiVO4 and TiO2. Based on the obtained results, the as-prepare BiVO4/ TiO2 nanocomposite possessed great adsorptivity of methylene blue, extended light adsorption range, and efficient charge separation properties. Overall, this work could provide new insights into the fabrication of a BiVO4/TiO2 composite as high performance photocatalyst and promise as a solar light photocatalyst for dye wastewater treatment. |
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| Keywords: | Degradation Nanocomposite Photocatalytic activity |
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