Efficient photocatalytic decomposition of acetaldehyde over a solid-solution perovskite (Ag0.75Sr0.25)(Nb0.75Ti0.25)O3 under visible-light irradiation

A green chemistry process for environmental purification is realized on a novel visible-light-active photocatalyst (Ag(0.75)Sr(0.25)) (Nb(0.75)Ti(0.25))O(3). This mixed valent solid-solution perovskite with a modulated electronic structure possesses a strong oxidative 4 potential for efficient photocatalytic decomposition of acetaldehyde into CO(2) at ambient temperature.