Fabrication of photocatalyst panels and the factors determining their activity for water splitting

Abstract

A photocatalyst panel of Rh 2-y Cr y O 3 /(Ga 1-x Zn x)(N 1-x O x) exhibiting activity comparable to that of a conventional powder suspension system was developed by spreading the photocatalyst powder onto 5 cm × 5 cm flat frosted glass plates together with micrometer-sized hydrophilic silica particles, which improved the porosity of the photocatalyst layer for more efficient mass diffusion through the photocatalyst layer. © The Royal Society of Chemistry.