Comparative study of photoreforming of glycerol on Pt/TiO2 and CuOx/TiO2 photocatalysts under UV light

Pt/TiO2 and CuO0.68/TiO2 were synthesized and tested in the photoreforming of glycerol. The photocatalysts were characterized by UV-vis spectroscopy, X-ray photoelectron spectroscopy, X-ray diffraction, and transmission electron microscopy. It was found that the Pt/TiO2 photocatalyst was more active and stable, but the use of the CuOx/TiO2 photocatalyst made it possible to obtain a wider variety of products and a higher percentage of formation of organic products from glycerol. The highest rate of hydrogen evolution was equal to 0.55 mmol h(-1) g(-1) and to 1.35 mmol h(-1) g(-1) for CuOx/TiO2 and Pt/TiO2, respectively. (C) 2020 Elsevier B.V. All rights reserved.

Automated summary

Pt/TiO2 and CuOx/TiO2 were synthesized and tested in the photoreforming of glycerol. Pt/TiO2 showed higher activity and stability, while CuOx/TiO2 produced a wider variety of products and a higher percentage of organic products from glycerol. Highest hydrogen evolution rates were 0.55 mmol h(-1) g(-1) for CuOx/TiO2 and 1.35 mmol h(-1) g(-1) for Pt/TiO2.