Phototransformations of TiO₂/Ag₂O composites and their influence on photocatalytic water splitting accompanied by methanol photoreforming.

ABSTRACT: This work aimed to revise the mechanism of photocatalytic activity of the TiO₂/Ag₂O system in photocatalytic water splitting accompanied by methanol photoreforming. The transformation of Ag₂O into silver nanoparticles (AgNPs) during photocatalytic water splitting/methanol photoreforming was monitored using XRD, XPS, SEM, UV-vis, and DRS techniques. The impact of AgNPs, grown on TiO₂, on its optoelectronic properties was analysed through inter alia spectroelectrochemical measurements. The photoreduced material exhibited a significantly shifted position of the TiO₂ conduction band edge. Surface photovoltage measurements revealed the lack of photoinduced exchange of electrons between TiO₂ and Ag₂O, indicating

SUBMITTER: Jakiminska A 

PROVIDER: S-EPMC10044581 | biostudies-literature | 2023 Mar

REPOSITORIES: biostudies-literature