Journal
CATALYSIS SCIENCE & TECHNOLOGY
Volume 7, Issue 12, Pages 2551-2558Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c7cy00321h
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Funding
- Japan Society for the Promotion of Science (JSPS) [26220911, 26630409, 26620194, T16 K14478]
- MEXT
- Japan International Corporation Agency (JICA) [D-14-90271]
- Grants-in-Aid for Scientific Research [26220911, 16K14478] Funding Source: KAKEN
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A series of bimetallic M/Ag ( where M represents Pd, Ru, Ni and Co metallic species) nanorod (NR)-based plasmonic photocatalysts with 0.5 wt% loading of M on Ag (1.0 wt%) are prepared within the mesoporous channels of SBA-15. The chemical structure, morphology and optical properties of M/Ag/SBA-15 are well characterized by UV-vis spectroscopy, TEM, FT-EXAFS, XPS and N-2 adsorption-desorption measurement studies. Subsequently, the photocatalytic activity is assessed by hydrogen production from ammonia borane ( AB) and chemical reduction of 4-nitrophenol (NP) to 4-aminophenol (AP) under visible light irradiation. The enhanced catalytic activities under light irradiation in comparison with dark conditions are explained by a plausible photocatalytic and charge separation mechanism to envisage the tentative reaction pathway. Finally, the reusability of the catalyst is evaluated via four consecutive catalytic runs.
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