Preparation of TiO2 Thin Films Using Octadecylamine Langmuir-Blodgett Films and Evaluation of Their Photocatalytic Activity

Masashi Takahashi; Mitsuyuki Sendoh; Koichi Kobayashi; Kazuo Tajima

doi:10.5650/jos.60.25

General Subjects

Preparation of TiO₂ Thin Films Using Octadecylamine Langmuir-Blodgett Films and Evaluation of Their Photocatalytic Activity

Masashi Takahashi, Mitsuyuki Sendoh, Koichi Kobayashi, Kazuo Tajima

著者情報

キーワード: TiO₂ thin film, LB technique, octadecylamine, titanium potassium oxalate, photocatalytic activity

ジャーナルフリー

2011 年 60 巻 1 号 p. 25-29

DOI https://doi.org/10.5650/jos.60.25

詳細

抄録

A study was conducted to demonstrate that nanometer-thick titanium dioxide (TiO₂) thin films could be prepared by the hydrolysis of titanium potassium oxalate using octadecylamine (ODA) Langmuir-Blodgett (LB) films as templates. The amount of TiO₂ generated in the LB film was found to be proportional to the number of deposited ODA layers, which enables precise control of the TiO₂ film thickness. After heat treatment of the LB films at 300-600°C, the photocatalytic activities of the resulting TiO₂ films were determined from the decomposition of stearic acid cast films when irradiated with UV light for different time periods. Higher photocatalytic activity was observed in TiO₂ films heat treated at lower temperatures.

責任著者(Corresponding author)

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