Facile synthesis of Y-doped graphitic carbon nitride with enhanced photocatalytic performance |
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| Affiliation: | 1. Division of Nanomaterials and Chemistry, Hefei National Laboratory for Physical Sciences at the Microscale, Department of Chemistry, University of Science and Technology of China, Hefei 230026, PR China;2. State Key Laboratory of Pulsed Power Laser Technology, Electronic Engineering Institute, 460 Huangshan Road, Hefei, Anhui 230037, PR China;1. Hunan Key Laboratory of Micro-Nano Energy Materials and Devices, Faculty of Materials, Optoelectronics and Physics, Xiangtan University, Hunan 411105, China;2. Department of Physics and Materials Science, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China;1. School of Environment and Safety Engineering, Jiangsu University, 212013 Zhenjiang, China;2. School of Chemistry and Chemical Engineering, Jiangsu University, 212013 Zhenjiang, China;1. College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China;2. Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, PR China;3. School of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore 637459, Singapore;1. The Key Laboratory of Advanced Textile Materials and Manufacturing Technology of Ministry of Education, National Engineering Lab for Textile Fiber Materials and Processing Technology (Zhejiang), College of Materials and Textiles, Zhejiang Sci-Tech University, Hangzhou 310018, China;2. State Key Laboratory of Silicon Materials, Department of Materials Science and Engineering, Cyrus Tang Center for Sensor Materials and Applications, Zhejiang University, Hangzhou 310027, China |
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| Abstract: | Yttrium-doped graphitic carbon nitride (Y/g-C3N4) catalysts were prepared via a facile pyrolysis method with urea used as a precursor and yttrium nitrate as the Y source. Characterization results show that an appropriate doping ratio of Y can be embedded into in-planes of g-C3N4. The Y/g-C3N4 catalysts are characterized by hierarchical porosity, large specific surface area, and large pore volume. Introduction of Y species effectively extends the spectral response of g-C3N4 from ultraviolet to visible region and decelerates the recombination of photogenerated electrons and holes. Because of these properties, the Y/g-C3N4 catalysts show an enhanced photocatalytic performance in rhodamine B degradation under visible light. |
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