Loading...

A credible role of copper oxide on structure of nanocrystalline mesoporous titanium dioxide

Rahimnejad, S. (Sara) ; Sharif University of Technology

247 Viewed
  1. Type of Document: Article
  2. DOI: 10.1007/BF03245990
  3. Abstract:
  4. Copper oxide-titania catalysts with nanocrystalline mesoporous structure were prepared by sol-gel technique using tetra isopropyl ortho titanate (TiPT) as the inorganic precursor and amino-2 ethanol as the swelling agent. Characterization was performed using X-ray diffraction (XRD), fourier transformed infrared spectra (FTIR), scanning electron microscopy (SEM), diffuse reflectance UV-Vis spectroscopy (DRS), and N2 adsorption-desorption measurements. It was found that CuO (0.025-0.1 mol ratio) has some effect on the particle size, surface area, pore-volume, pore-diameter, crystallinity of the particles, and crystalline phase of TiO2 nanocrystalline. The results indicated that 0.1 CuO-TiO2 had higher surface area and total pore volume among all CuO-TiO2 samples. The SBET value of 0.1 mol ratio CuO-load TiO2 sample is approximately similar to that of Degussa P25 while its pore volume (0.1198 cm3 g-1) is larger than Degussa P25 due to production of large number of pores. Therefore, the physical property of 0.1 CuO-TiO2 catalyst is comparable with Degussa P25.At 823K, the 0.1 mol ratio CuO-load TiO2 sample shows the phase transformation from anatase to rutile in the ratio of 1:1.1. The synthesized CuO-TiO2 nanocrystalline will be able to show photocatalytic reaction under visible light
  5. Keywords:
  6. TiO2 ; CuO ; Mesoporous ; Nanocrystalline
  7. Source: Journal of the Iranian Chemical Society ; Volume 5, Issue 3 , September , 2008 , pp. 367-374 ; 1735207X
  8. URL: http://link.springer.com/article/10.1007%2FBF03245990