Paper Title:
Ultrasonic-hydrothermal Synthesis and Characterization of Mesoporous Anatase TiO2 Microspheres
  Abstract

Mesoporous TiO2 microspheres with a combination of large surface and high crystallinity were fabricated by an ultrasonic-hydrothermal method with Octadecylamine as a structure-directing agent and tetrabutyl titanate as a precursor. The mesoporous materials were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), N2 adsorption–desorption measurements, and UV–visible diffuse reflectance spectroscopy (UV-vis). Low-angle XRD and TEM images indicated that the disordered wormhole-like mesoporous architecture of TiO2 microspheres with diameters of about 200-400 nm were actually formed by agglomerization of nanoparticles with an average size of about 10nm. The analysis from N2 adsorption–desorption isotherms showed that the surface area of mesoporous sample was 204.7 m2g-1, with a pore size of 4.3 nm and pore volume of 0.263 cm3g-1 after calcined at 673 K.

  Info
Periodical
Advanced Materials Research (Volumes 239-242)
Edited by
Zhong Cao, Xueqiang Cao, Lixian Sun, Yinghe He
Pages
2323-2326
DOI
10.4028/www.scientific.net/AMR.239-242.2323
Citation
H. B. Li, S. G. Chen, W. M. Lu, Q. C. Liu, "Ultrasonic-hydrothermal Synthesis and Characterization of Mesoporous Anatase TiO2 Microspheres", Advanced Materials Research, Vols. 239-242, pp. 2323-2326, 2011
Online since
May 2011
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$32.00
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