Research on Solvothermal Synthesis of Phase Composition Controllable Nanocrystalline TiO2 Powders

Abstract:

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N-doped TiO2 powders have been prepared by solvothermal synthesis using TiCl3 aqueous solution as precursor. The as-synthesized powders are composed of anatase and rutile and show light-yellow in color. The grain size is ranged from 10.3 nm to 19.1 nm by Scherrer's method and the specific surface area is ranged from 21 m2/g to 122 m2/g. X-ray photoelectron spectroscopy (XPS) results indicate that N atoms have been doped into the lattice of TiO2. Ti-N bonding and radical groups such as ×OH were detected on the surface of the powders. The synthesized N-doped TiO2 powders shows excellent visible-light photocatalytic activities and their absorption edge have been red-shifted to 560 nm.

Info:

Periodical:

Advanced Materials Research (Volumes 284-286)

Main Theme:

Edited by:

Xiaoming Sang, Pengcheng Wang, Liqun Ai, Yungang Li and Jinglong Bu

Pages:

820-824

DOI:

10.4028/www.scientific.net/AMR.284-286.820

Citation:

M. J. Li and W. B. Cao, "Research on Solvothermal Synthesis of Phase Composition Controllable Nanocrystalline TiO2 Powders", Advanced Materials Research, Vols. 284-286, pp. 820-824, 2011

Online since:

July 2011

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Price:

$35.00

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