Influence of Ag Additive on the Microstructure of TiO2 Powders

Abstract

Abstract: Ag-doped TiO₂ powders were prepared by a sol-gel process. The influence of Ag doping on the
microstructure and phase transformation behaviors of TiO₂ powders was investigated by means of XRD, SEM, DSC-TG, SEM-EDX and N₂ absorption.
The results show that Ag dopant promotes TiO₂ anatase to rutile transformation but depresses the growth of anatase grains, decreasing
anatase grain sizes and increasing the specific surface area of TiO₂ powder. The Ag doping therefore exhibits a great potential in improving the
TiO₂ photocatalytic activity.

Key words: TiO₂, Ag, sol-gel, doping, microstructure

CLC Number:

TB383
TF12

HE Chao,YU Yun,ZHOU Cai-Hua,HU Xing-Fang,LARBOT Andre. Influence of Ag Additive on the Microstructure of TiO₂ Powders[J]. Journal of Inorganic Materials.

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Influence of Ag Additive on the Microstructure of TiO₂ Powders

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