Depositing Ag nanoparticles on g-C3N4 by facile silver mirror reaction for enhanced photocatalytic hydrogen production
| Autor: | Ping He, Qi Hu, Yao Xiao, Yinping Dang, Jiufu Chen, Tongyan Ren, Dashuang Deng |
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| Rok vydání: | 2021 |
| Předmět: |
Materials science
Schottky barrier Composite number 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences Inorganic Chemistry Chemical engineering Polymerization Phase (matter) Materials Chemistry Photocatalysis Charge carrier Physical and Theoretical Chemistry 0210 nano-technology Visible spectrum Hydrogen production |
| Zdroj: | Inorganic Chemistry Communications. 123:108367 |
| ISSN: | 1387-7003 |
| Popis: | In this study, Ag-g-C3N4 composite photocatalysts were prepared by a facile polymerization and silver mirror reaction way. The phase, morphology, chemical structure, electronic and optical properties of the as-prepared photocatalysts were characterized systematically. The photocatalytic performance of Ag-g-C3N4 photocatalysts were evaluated by photocatalytic hydrogen production and the 5% Ag-g-C3N4 exhibited the best hydrogen production rate of 568.9 μmol·g−1·h−1, which is 39 times higher than that of bulk g-C3N4. Subsequently, the photocatalytic mechanism is tentatively proposed. The enhanced photocatalytic activity of Ag-g-C3N4 photocatalysts are ascribed to the efficient utilization of visible light, separation and transportation of the photogenerated charge carriers result from the SPR effect of Ag nanoparticles and Schottky barrier at the interface of Ag and g-C3N4. |
| Databáze: | OpenAIRE |
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