Structural, Textural, and Electronic Properties of a Nanosized Mesoporous ZnxTi1-xO2-x Solid Solution Prepared by a Supercritical Drying Route
Authors:
- Yury V. Kolen'KoYKYury V. Kolen'Ko
- Kirill A. KovnirKKKirill A. Kovnir
- Anton I. GavrilovAGAnton I. Gavrilov
- Alexei V. GarshevAGAlexei V. Garshev
- Pavel E. MeskinPMPavel E. Meskin
- Bulat R. ChuragulovBCBulat R. Churagulov
- Michel BouchardMBMichel Bouchard
- Christophe Colbeau-JustinCCChristophe Colbeau-Justin
- # Oleg I. Lebedev#L# Oleg I. Lebedev
- Gustaaf Van TendelooGTGustaaf Van Tendeloo
- Masahiro YoshimuraMYMasahiro Yoshimura
- 11 October 2005
- journal article
- research article
- Published by American Chemical Society (ACS) in The Journal of Physical Chemistry B
- Vol. 109 (43) , 20303-20309
Abstract
Mesoporous nanosized TiO2 and ZnxTi1-xO2-x solid solution having a Zn content below 10 mol % with a particles size between 13 and 17 nm are prepared by a template-free sol-gel method followed by high-temperature supercritical drying in 2-propanol. The structural, textural, and electronic properties of the obtained nanomaterials are methodically investigated by using XRD, SEM, TEM, ED, HREM, EDX, ICP-OES, N2 adsorption−desorption, Raman spectroscopy, and diffuse reflectance UV−vis spectroscopy. It is shown that the proposed synthesis technique leads to the formation of a ZnxTi1-xO2-x solid solution based on the anatase crystal structure rather than a two-phase sample. High-resolution electron microscopy and electron diffraction indicate that the distribution of zinc atoms over the anatase structure does not lead to a considerable deformation of the crystal structure.Keywords
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