Articles
  • Hydrothermal synthesis of Cr and Fe co-doped TiO2 nanoparticle photocatalyst
  • E.D. Jeonga, Pramod H. Borseb, J.S. Jangb, J.S. Leeb, Ok-Sang Jungc, H. Changd, J.S. Jina, M.S. Wona and H.G. Kima,*
  • a Busan Center, Korea Basic Science Institute, Busan 609-735, Korea b Department of Chemical Engineering, Pohang University of Science and Technology, Pohang 790-784, Korea c Department of Chemistry(BK21), Pusan National University, Pusan 609-735, Korea d Korea Research Institute of Chemical Technology, Daejeon 305-600, Korea
Abstract
We report here new findings on the visible light photodecomposition activity of gaseous iso-propyl alcohol over Cr and Fe codoped TiO2 nanoparticles. High surface area, doped TiO2 nanoparticles were synthesized hydrothermally and co-dopant effects are investigated. The physico-chemical properties of the co-doped nanoparticles led to efficient photocatalysts. Cr and Fe co-doped TiO2 nanoparticles exhibited two times higher photocatalytic activity for the photodecomposition of gaseous isopropyl alcohol than the individually (Cr/Fe) doped TiO2 nanoparticles under visible light irradiation (λ > 420 nm). The activity is mainly correlated to the larger absorptions around 496nm and 563nm wavelengths by co-doped TiO2 nanoparticles than Fe doped TiO2 nanoparticles which possibly absorb λ > 496 nm.

Keywords: Cr and Fe co-doped TiO2, Nano-particles, Hydrothermal synthesis method, Photocatalysts

This Article

  • 2008; 9(3): 250-253

    Published on Jun 30, 2008