An enhanced photo(electro)catalytic CO reduction onto advanced BiOX (X = Cl, Br, I) semiconductors and the BiOI-PdCu composite.

The photoelectrocatalytic reduction of CO (CORR) onto bismuth oxyhalides (BiOX, X = Cl, Br, I) was studied through physicochemical and photoelectrochemical measurements. The successful synthesis of the BiOX compounds was carried out through a solvothermal methodology and confirmed by XRD measurements. The morphology was analyzed by SEM; meanwhile, area and pore size were determined through BET area measurements.

Flux synthesis of BaLiTiO and its photocatalytic performance.

Barium-lithium titanate (BaLiTiO) was synthesized by using a flux method under some conditions with various chloride salts as the flux, thermal treatment temperatures, solute concentrations, and cooling rates. As a result, fine particles of this material with a rod-like morphology were obtained for the first time. It is suggested that this morphology with high crystallinity is responsible for the increase in the photocatalytic activity of this material without any co-catalyst for H and CO evolution from water and CO.