Facile one-pot hydrothermal synthesis of B/N-codoped TiO2 hollow spheres with enhanced visible-light photocatalytic activity and photoelectrochemical property |
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| Institution: | 1. School of Material Engineering, Jinling Institute of Technology, Nanjing 211169, China;2. Laboratory of Bioelectronics, Southeast University, Nanjing 210096, China;1. Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore;2. NUS Environmental Research Institute (NERI), #02-01, T-Lab Building (TL), 5A Engineering Drive 1, Singapore 117411, Singapore;3. Shenzhen Engineering Laboratory for Eco-efficient Polysilicate Materials, School of Environment and Energy, Peking University Shenzhen Graduate School, Shenzhen 518055, PR China;1. Department of Physics, University of Jaffna, Jaffna 40000, Sri Lanka;2. Department of Physical Science, Trincomalee campus, Eastern University, Sri Lanka;3. Faculty of Electrical Engineering, Czech Technical University in Prague, Czech Republic;4. Faculty of Engineering and Science, Western Norway University of Applied Sciences, P.O. Box 7030, 5020 Bergen, Norway;1. Centre for Ionics University Malaya, Faculty of Science, University of Malaya, 50603 Kuala Lumpur, Malaysia;2. Department of Chemistry, University of Malaya, 50603 Kuala Lumpur, Malaysia |
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| Abstract: | B/N-codoped TiO2 hollow spheres (B/N-THs) were synthesized by facile one-pot hydrothermal method. The prepared samples were characterized by X-ray diffraction (XRD), scanning electron microscope (SEM), transmission electron microscopy (TEM), N2 adsorption-desorption isotherms, UV–vis diffuse reflectance spectrum (DRS) and X-ray photoelectron spectroscopy (XPS). The B/N-THs have large surface areas (up to 172.1 m2 g−1). The photocatalytic activities of as-prepared THs were evaluated by degradation of Reactive Brilliant Red dye X-3B solution under visible light irradiation. The results showed that B/N-THs exhibited the highest photocatalytic activity due to their high surface area and synergetic effect of B/N-codoped. A photocurrent–time spectrum was examined by anodic photocurrent response to characterize the electron-transferring efficiency in the process of photocatalysis reaction. |
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| Keywords: | Titania Hollow spheres B/N-codoped Visible light Photocatalysis Photocurrent |
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