Hydrocarbon production by addition of Cu-ZnO on g-C3N4 for CO2 conversion |
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| Authors: | Zhen Zhu Chin-Yuan Chen Ren-Jang Wu |
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| Institution: | 1. School of Environmental Science and Safety Engineering, Tianjin University of Technology, Tianjin, China;2. Department of Applied Chemistry, Providence University, Taichung, Taiwan, R.O.C. |
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| Abstract: | In this study, copper/zinc oxide/graphite nitrogen carbide (Cu/ZnO/g-C3N4) is prepared using a hydrothermal method and applied as a photocatalyst for CO2 photoreduction. The morphology and structural properties of the obtained Cu/ZnO/g-C3N4 are systematically characterized through X-ray powder diffraction, ultraviolet–visible absorption spectroscopy, transmission electronic microscopy, and photoluminescence spectroscopy. A 3 wt% Cu/ZnO/g-C3N4 photocatalyst exhibits high CH4 (40.7 μmol g?1 hr?1), CO (65.1 μmol g?1 hr?1), and CH3OH (92.5 μmol g?1 hr?1) production rates, which are 38.3, 77.1, and 58.1 fold higher than the pure g-C3N4. The production rate is higher than those for bulk g-C3N4 and ZnO/g-C3N4. Finally, the reaction mechanism of Cu/ZnO/C3N4 is proposed in this study. |
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| Keywords: | carbon monoxide CO2 photoreduction cu/ZnO/g-C3N4 methane methanol |
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