Synthesis and characterisation of mesoporous anatase TiO2 with highly crystalline framework

Highly crystalline mesoporous nano TiO2 (anatase) was achieved from tetrabutyl orthotitanate modified with acethylacetone by surfactant-assisted route in presence of P123. The material was characterised using X-ray diffraction (XRD) (low and wide angle), FTIR spectra, SEM, TEM, N2 adsorption, and UV...

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Bibliographic Details
Published in:Materials letters 2013-01, Vol.91 (15), p.118-120
Main Authors: Renuka, N.K., Praveen, A.K., Aravindakshan, K.K.
Format: Article
Language:English
Subjects:
absorption
adsorption
Electron microscopy
Fourier transform infrared spectroscopy
Meso titania
Nanoparticles
nitrogen
particle size
scanning electron microscopy
Texture
titanium dioxide
transmission electron microscopy
X-ray diffraction
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Summary:Highly crystalline mesoporous nano TiO2 (anatase) was achieved from tetrabutyl orthotitanate modified with acethylacetone by surfactant-assisted route in presence of P123. The material was characterised using X-ray diffraction (XRD) (low and wide angle), FTIR spectra, SEM, TEM, N2 adsorption, and UV-DRS. The particle size of the material was calculated from TEM analysis, XRD, as well as BET method. Mesopores of average width ∼7.2nm have been achieved. The material possessed band gap of 3.24eV, and exhibited a significant blue-shift in UV absorption when compared to the bulk material, due to quantum confinement. [Display omitted] ► Highly crystalline mesoporous TiO2 obtained. ► Uniform pores of width between 5–10nm have been achieved. ► More ordered pores found at higher surfactant to precursor ratios.
ISSN:0167-577X
1873-4979
DOI:10.1016/j.matlet.2012.09.110