Visible light photocatalytic properties of Ta and N codoped SrTiO 3 nanoparticles

Uyi Sulaeman, Shu Yin, Tsugio Sato

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)

Abstract

Ta and N co-doped SrTiO3 was synthesized by microwave-assisted solvothermal reaction using SrCl2·6H2O, Ti(OC 3H7)4, TaCl5, and HMT (hexamethylenetetramine) in KOH and oleic acid mixed solutions. The products were characterized by XRD, TG-DTA, BET surface area measurement, TEM, EDX, DRS, PL-Spectra, and XPS. The nanoparticles of perovskite-type SrTi 1-xTaxO3-yNy (x = 0 - 0.1) were successfully synthesized. The photocatalytic activity of SrTiO3 for DeNOxability in the visible light region could be improved by the codoping of Ta5+ and N3-. The excellent visible light photocatalytic activity of this substance may be due to the generation of a new band gap by doping nitrogen that enables the absorption of visible light as well as a decrease in the incidence of the lattice defects, which acts as a recombination center of photo-induced electrons and holes by codoping with Ta5+.

Original languageEnglish
Article number261420
JournalInternational Journal of Optics
Volume2010
DOIs
Publication statusPublished - 2010

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics

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