Volume 9, Issue 3 (september 2012)                   IJMSE 2012, 9(3): 17-23 | Back to browse issues page

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Janitabar-Darzi S, Mahjoub A. VISIBLE-LIGHT-ACTIVE NITROGEN DOPED TIO2 NANOPARTICLES PREPARED BY SOL-GEL ACID CATALYZED REACTION. IJMSE 2012; 9 (3) :17-23
URL: http://ijmse.iust.ac.ir/article-1-392-en.html
VISIBLE-LIGHT-ACTIVE NITROGEN DOPED TIO2 NANOPARTICLES PREPARED BY SOL-GEL ACID CATALYZED REACTION
Simin Janitabar-Darzi , Alireza Mahjoub
Abstract:   (26401 Views)
Yellow-colored nitrogen doped TiO2 photocatalyst and a pure TiO2 powder were synthesized via sol-gel method using TiCl4 and urea as raw materials. However, the synthesis procedure for nitrogen doped TiO2 was catalyzed by acid that dialed with controlled precipitation and slow nucleation. According to XRD analysis, the nitrogen doped TiO2 consisted of anatase phase of titania which was a significant achievement regarding its possible photocatalytic applications. The band gaps of nitrogen doped TiO2 and pure TiO2 were estimated from UV-Vis spectroscopy data to be 2.8 and 3.3 ev, respectively. Photocatalytic properties of the nitrogen doped TiO2 nanocatalyst and pure TiO2 were compared for degradation of crystal violet dye in visible light irradiation. In comparison to pure TiO2, nitrogen doped TiO2 showed superior photocatalytic efficiency towards the dye.
Keywords: TiO2, sol-gel, band gap, nitrogen, nanoparticles
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Type of Study: Research Paper | Subject: Ceramics
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