Solvothermal Synthesis and Photocatalytic Properties of Nitrogen-Doped SrTiO3Nanoparticles

[摘要] Perovskite-type nitrogen-doped SrTiO3nanoparticles of 50–80 nm in diameter were successfully synthesized by the solvothermal of Ti(OC3H7)4, SrCl2·6H2O, and hexamethylenetetramine in KOH aqueous solution. Nitrogen-doped SrTiO3showed excellent photocatalytic activity under both UV and visible light irradiation, that is, the photocatalytic activity of N-doped SrTiO3for DeNOxreaction was greater than that of SrTiO3and commercial TiO2(Degussa P25) in both visible light region (>510 nm) and UV light region (>290 nm). The excellent visible light photocatalytic activity of this substance was caused by generating a new band gap that absorbs visible light.

[学科分类] 材料工程