Preparation and hydrogenation of urchin-like titania using a one-step hydrothermal method |
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| Affiliation: | 1. School of Materials and Engineering, Xi’an University of Technology, Xi’an 710048, China;2. Department of Materials Science and Engineering, Virginia Tech, Blacksburg, VA 24061, USA;1. School of Materials and Chemical Engineering, Zhongyuan University of Technology, Zhengzhou, 450007, PR China;2. College of Life Science and Bioengineering, Beijing University of Technology, Beijing, 100124, PR China;3. College of Mechanical Engineering and Applied Electronics Technology, Beijing University of Technology, Beijing, 100124, PR China;4. Department of Materials Science and Engineering, Virginia Polytechnic Institute and State University, Blacksburg, VA, 24061, USA;1. Department of Material Science and Engineering, Holden Hall, Virginia Tech, Blacksburg, VA 24060, USA;2. Sri Guru Granth Sahib World University, Fatehgarh Sahib 140406, India |
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| Abstract: | TiO2 has been widely used in the fields of environmental protection, energy conversion, plastics, coatings, cosmetics, and more. However, it has a wide band gap (3.2 eV) and the easy agglomeration of TiO2 nanoparticles hinders its application. This study adopts a one-step hydrothermal method to prepare urchin-like TiO2 photocatalyst and studies the morphology of TiO2 in relation to hydrothermal time, hydrothermal temperature and hydrogen peroxide (H2O2) amount. In addition, the urchin-like TiO2 is annealed in hydrogen atmosphere to discuss the influence of oxygen vacancies on the band gap and photocatalytic performance improvement. |
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| Keywords: | Defects Functional applications Powders: chemical preparation |
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