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One-pot synthesis of Ag+ doped BiVO4 microspheres with enhanced photocatalytic activity via a facile hydrothermal method |
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| Institution: | 1. Department of Chemistry, Zhejiang University, Hangzhou, Zhejiang 310027, China;2. Special and Key Laboratory of Guizhou Provincial Higher Education for Green Energy-Saving Materials, Guizhou Minzu University, Guiyang 550025, China;3. School of Aeronautics and Astronautics, Zhejiang University, Hangzhou, Zhejiang 310027, China;4. Department of Chemical Engineering, Binzhou University, Binzhou 256603, China;1. Department of Physics, Sri Sairam Engineering College, Chennai 600044, Tamil Nadu, India;2. Department of Physics, SRM Valliammai Engineering College, Kattankulathur, Kancheepuram 603203, Tamil Nadu, India;3. Functional Materials and Energy Devices Laboratory, Department of Physics and Nanotechnology, SRM Institute of Science and Technology, Kattankulathur 603 203, India;4. Research Institute of Electronics, Shizuoka University, 3-5-1 Johoku, Naka-Ku, Hamamatsu, Shizuoka 432-8011, Japan |
| Abstract: | The Ag+/BiVO4 photocatalyst was fabricated through a facile hydrothermal method by using K6V10O28·9H2O as the vanadium source. The impact of Ag+ on the product's structure and morphology was studied. It was shown that the amount of Ag+ has no effect on the product’s crystal phases but plays an important role on the morphology of the nanoparticles that construct the shell of BiVO4 microspheres. In addition, the Ag+-doped photocatalysts have much higher photocatalytic activities in removing RhB and MB under the UV light illumination than the pure BiVO4. A possible photocatalytic mechanism was proposed in photoexcitation of the BiVO4 electrons which subsequently captured by the dopant. The present work may offer a novel route to reach higher photocatalytic activity by doping the Ag+ in the semiconductor catalysts. |
| Keywords: | Oxides Chemical synthesis X-ray diffraction Optical properties |
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