Visible light photocatalytic activity induced by the carboxyl group chemically bonded on the surface of SrTiO3

▶ The nanoparticles of perovskite type SrTiO3 (15-18 nm) could be synthesized. ▶ Carboxyl (-COO−) group of oleic acid chemically bonded in the surface of catalyst. ▶ The visible light photocatalytic of SrTiO3-oleic acid could be generated.