Mechanism Investigation of Influence of HPC on the Microstructure ofTiO2 Films

Journal of Inorganic Materials

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Mechanism Investigation of Influence of HPC on the Microstructure ofTiO₂ Films

TIAN Qing-Hua; ZHAO Gao-Ling; HAN Gao-Rong;

State Key Lab of Silicon Materials; Department of Materials Science and Engineering; Zhejiang University; Hangzhou 310027; China

Received:2002-12-10 Revised:2003-03-06 Published:2004-01-20 Online:2004-01-20

Abstract

Abstract: Sol-gel-derived TiO₂ colloid films were prepared with various amount of hydroxypropy-lcellulose (HPC) as additive. The function mechanism of HPC on the microstructure of titania films was studied. FRIR analysis shows that HPC anchors on the surface of titania colloid. The action between the polymers decides the distribution of titania colloid in the solution. Scanning electrical microscope (SEM) and transmitting electrical microscope (TEM) analysies show that when the concentration of HPC is 4.5×10^-3g/g, the adsorption of HPC on titania colloid reaches its fitting amount, the titania colloid disperses well in the solution and the particle size of titania is smallest.

Key words: TiO₂ films, HPC, anchoring mechanism, disperse

CLC Number:

O484

TIAN Qing-Hua,ZHAO Gao-Ling,HAN Gao-Rong,. Mechanism Investigation of Influence of HPC on the Microstructure ofTiO₂ Films[J]. Journal of Inorganic Materials.

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Mechanism Investigation of Influence of HPC on the Microstructure ofTiO₂ Films

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