Effect of the Synthetic Parameters over ZnO in the CO Photoreduction.

Zinc oxide (ZnO) is an attractive semiconductor material for photocatalytic applications, owing to its opto-electronic properties. Its performances are, however, strongly affected by the surface and opto-electronic properties (i.e.

Titanium Dioxide-Based Nanocomposites for Enhanced Gas-Phase Photodehydrogenation.

Light-driven processes can be regarded as a promising technology for chemical production within the bio-refinery concept, due to the very mild operative conditions and high selectivity of some reactions. In this work, we report copper oxide (CuO)-titanium dioxide (TiO) nanocomposites to be efficient and selective photocatalysts for ethanol photodehydrogenation under gas phase conditions, affording 12-fold activity improvement compared to bare TiO. In particular, the insertion method of the CuO co-catalyst in different TiO materials and its effects on the photocatalytic activity were studied.

Systematic study of TiO/ZnO mixed metal oxides for CO photoreduction.

A two component three degree simplex lattice experimental design was employed to evaluate the impact of different mixing fractions of TiO and ZnO on an ordered mesoporous SBA-15 support for CO photoreduction. It was anticipated that the combined advantages of TiO and ZnO: low cost, non-toxicity and combined electronic properties would facilitate CO photoreduction. The fraction of ZnO had a statistically dominant impact on maximum CO adsorption ( = 22.