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Tungsten-doped foam g-C3N4 with improved photocatalytic properties for degradation of pollutant and hydrogen evolution
Authors:Yi Zong  Zixing Peng  Qian Dong  Wanbing Hu  Dandan Yang  Qianyi Guo  Zhiwu Chen  Guoping Dong
Affiliation:1. State Key Laboratory of Luminescent Materials and Devices, Guangdong Provincial Key Laboratory of Fiber Laser Materials and Applied Techniques, Guangdong Engineering Technology Research and Development Center of Special Optical Fiber Materials and Devices, South China University of Technology, Guangzhou, China;2. Department of Chemistry, University of Manchester, Manchester, UK;3. School of Materials Science and Engineering, South China University of Technology, Guangzhou, China;4. Laboratory for Advanced Interfacial Materials and Devices, Research Centre for Smart Wearable Technology, Institute of Textiles and Clothing, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong SAR, China
Abstract:As a potential material applied in the photocatalytic field, graphitic carbon nitride (g-C3N4) has attracted extensive attention for its advantages of visible-light response, excellent thermodynamic, and chemical stability. However, the photocatalytic performance of g-C3N4 is still limited in practical applications. Here, using a facile thermal polymerization method, unique W-doped foam g-C3N4 was synthesized to realize enhanced photocatalytic performance for the degradation of Rhodamine B and the evolution of hydrogen. Compared with pure foam g-C3N4, tungsten doping modified the foam g-C3N4 and efficiently improved its specific surface area, leading to enhanced photocatalytic performance. The average rate of hydrogen evolution was as high as 8818 μmol·h?1·g?1, which was better than most photocatalysts. This work proposes a new effective method and idea to modify g-C3N4 for improving its photocatalytic performance.
Keywords:foam g-C3N4  hydrogen evolution  photocatalysis  tungsten doping
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