Photocatalytic Hydrogen Production from Formic Acid Solution with Titanium Dioxide with the Aid of Simultaneous Rh Deposition

Photocatalytic hydrogen production was studied with a formic acid solution with titanium dioxide (TiO2) with the aid of simultaneous Rh deposition. The optimum conditions were as follows: Rh loading, 0.1 wt%; formic acid concentration, 1.0%; solution, pH 2.2; temperature, 50 °C. Under the optimum co...

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Bibliographic Details
Published in:ChemEngineering 2022-06, Vol.6 (3), p.43
Main Authors: Suhag, Mahmudul Hassan, Tateishi, Ikki, Furukawa, Mai, Katsumata, Hideyuki, Khatun, Aklima, Kaneco, Satoshi
Format: Article
Language:English
Subjects:
Acids
Biomass
Chemical engineering
Deposition
Energy
Formic acid
Hydrogen
Hydrogen production
Light
Particle size
Photocatalysis
photocatalyst
Photoluminescence
Reaction mechanisms
Renewable resources
Rh/TiO2
simultaneous metal deposition
Spectra
Titanium
Titanium dioxide
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Summary:Photocatalytic hydrogen production was studied with a formic acid solution with titanium dioxide (TiO2) with the aid of simultaneous Rh deposition. The optimum conditions were as follows: Rh loading, 0.1 wt%; formic acid concentration, 1.0%; solution, pH 2.2; temperature, 50 °C. Under the optimum conditions, the photocatalytic hydrogen production with TiO2 by the simultaneous deposition of Rh was 5.0 mmol g−1, 12.2 mmol g−1 and 16.0 mmol g−1 after 1 h, 3 h and 5 h of irradiation time for black light, respectively. Rh/TiO2 photocatalysts were characterized by XRD, SEM, photoluminescence spectra, diffuse reflectance spectra and the BET surface area. The reaction mechanism of photocatalytic hydrogen production from formic acid by Rh/TiO2 was also proposed.
ISSN:2305-7084
2305-7084
DOI:10.3390/chemengineering6030043