Photocatalytic H2 evolution of porous silicon derived from magnesiothermic reduction of mesoporous SiO2 |
| |
| Affiliation: | 1. Tianjin Key Laboratory for Photoelectric Materials and Devices, School of Materials Science and Engineering, Tianjin University of Technology, Tianjin, 300384, China;2. Key Laboratory of Display Materials and Photoelectric Devices, Ministry of Education, Tianjin University of Technology, Tianjin, 300384, China;3. Materials Research Institute, The Pennsylvania State University, University Park, PA, 16802, USA;4. Hangke (Tianjin) Aeronautical Equipment Co., Ltd., Tianjin, 300000, China;1. Department of Mechanical Engineering, Ayatollah Amoli Branch, Islamic Azad University, Amol, Iran;2. Department of Mechanical Engineering, K. N. Toosi University of Technology, Tehran, Iran;1. State Key Laboratory for Powder Metallurgy, Central South University, Changsha, China;2. School of Chemistry and Chemical Engineering, Central South University, Changsha, China;1. PCeIM, Centro de Nanociencias y Nanotecnología–UNAM, km. 107 Carretera Tijuana-Ensenada, CP. 22800, Ensenada, B.C., Mexico;2. Departamento de Ingeniería Química y Metalurgia-Universidad de Sonora, Blvd. Luis Encinas y Rosales, Col. Centro, CP. 83000, Hermosillo, Sonora, Mexico;3. División de Estudios de Posgrado e Investigación, Instituto Tecnológico de Ciudad Madero, Juventino Rosas y Jesús Urueta s/n, Col. Los Mangos, C.P. 89440 Ciudad Madero, Tamaulipas, Mexico;4. Centro de Nanociencias y Nanotecnología–UNAM, km. 107 Carretera Tijuana-Ensenada, CP. 22800, Ensenada, B.C., Mexico;1. Universidad del País Vasco (UPV/EHU), Facultad de Ciencia y Tecnología, Barrio Sarriena S/N, 48940, Leioa, Spain;2. CSIC-Universidad de Zaragoza, Instituto de Ciencia de Materiales de Aragón (ICMA), Pedro Cerbuna 12, 50009, Zaragoza, Spain;3. Centro Nacional del Hidrógeno, Prolongación Fernando el Santo s/n, Puertollano, 13500, Ciudad Real, Spain;4. School of Chemistry, University of Birmingham, Birmingham, B15 2TT, UK;5. BCMaterials, Basque Center for Materials, Applications and Nanostructures, BLD. Martina Casiano, 3rd. Floor UPV/EHU Science Park, Barrio Sarriena s/n, 48940, Leioa, Spain |
| |
| Abstract: | In this work, porous silicon (PSi) was synthesized by magnesiothermic reduction of mesoporous SiO2 (MCM-41) and its photocatalytic hydrogen evolution performance was investigated. The unique mesoporous structure of PSi expands the band gap of silicon and shifts its conduction band to a more negative position. As a result, excellent photocatalytic water splitting efficiency of 604.7 μmol h?1 g?1 under visible-light radiation is recorded for the synthesized PSi photocatalysts without loading noble metal cocatalysts. This study presented a promising visible light response photocatalysts for the generation green renewable hydrogen energy basing on PSi material deriving from simple magnesiothermic reduction of mesoporous SiO2. |
| |
| Keywords: | Photocatalyst Porous silicon Magnesiothermic reduction |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
