Preparation of Nanometer TiO2/SiO2Composite Materials by Adsorption Phase Nanoreactor Technique

Abstract

Abstract: TiO₂nanoparticles were prepared in adsorption phase nanoreactor formed by the adsorption layer on the silica surface.Solvent replacement experiment provided a direct evidence that there was water-rich adsorption layer and the reaction took place in the layer.TEM, XRDand electronic energy spectrum indicated that uniform TiO₂particles laid over the surface of SiO_2.The effects of reaction temperature and reactant concentration were investigated and the potential mechanism was discussed in terms of adsorption equilibriuMAnd reaction kinetics.

Key words: Adsorption layer, Nanoreactor, Nanometer TiO₂/SiO₂composite material

CLC Number:

O614

TrendMD:

WANG Ting, JIANG Xin, WANG You-Wen . Preparation of Nanometer TiO₂/SiO₂Composite Materials by Adsorption Phase Nanoreactor Technique[J]. Chem. J. Chinese Universities, 2003, 24(11): 1929.

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Preparation of Nanometer TiO₂/SiO₂Composite Materials by Adsorption Phase Nanoreactor Technique

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