Synergistic effects of Zn and Pd species in TiO2 towards efficient photo-reduction of CO2 into CH4
| Autor: | Yaan Cao, Yanlong Yu, Limei Guo, Enjun Wang, Jianghong Yao, Zijian Lan |
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| Rok vydání: | 2018 |
| Předmět: |
Chemistry
Inorganic chemistry Tio2 photocatalyst 02 engineering and technology General Chemistry 010402 general chemistry 021001 nanoscience & nanotechnology Photochemistry 01 natural sciences Redox Catalysis 0104 chemical sciences Reduction (complexity) Materials Chemistry Photocatalysis Charge carrier 0210 nano-technology Absorption (electromagnetic radiation) |
| Zdroj: | New Journal of Chemistry. 42:483-488 |
| ISSN: | 1369-9261 1144-0546 |
| DOI: | 10.1039/c7nj03305b |
| Popis: | A Zn and Pd co-modified TiO2 photocatalyst exhibits remarkably enhanced photocatalytic activity upon reduction of CO2 into CH4. Owing to the synergistic effect of unique O–Zn–Cl and O–Pd–O species, TiO2–PdX–ZnY presents enhanced visible absorption and efficient charge carrier separation. It can be deduced from theoretical calculations and experimental results that the energy levels of O–Zn–Cl and O–Pd–O satisfy the redox potential of CO2 reduction, improving the photocatalytic performance. These results suggest that introducing multi-surface species to produce synergetic effects is a feasible route for efficient photocatalysis. |
| Databáze: | OpenAIRE |
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