Preparation of TiO_2Thin Films Using Octadecylamine Langmuir-Blodgett Films and Evaluation of Their Photocatalytic Activity

Masashi Takahashi; Mitsuyuki Sendoh; Koichi Kobayashi; Kazuo Tajima

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Preparation of TiO_2Thin Films Using Octadecylamine Langmuir-Blodgett Films and Evaluation of Their Photocatalytic Activity

机译：十八胺Langmuir-Blodgett膜制备TiO_2薄膜及其光催化活性的评价

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摘要

A study was conducted to demonstrate that nanometer-thick titanium dioxide (TiO_2) thin films could be prepared by the hydrolysis of titanium potassium oxalate using octadecylamine (ODA) Langmuir Blodgett (LB) films as templates. The amount of TiO_2 generated in the LB film was found to be proportional to the number of deposited ODA layers, which enables precise control of the TiO_2 film thickness. After heat treatment of the LB films at 300-600°C, the photocatalytic activities of the resulting TiO_2 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 TiO_2, films heat treated at lower temperatures.

机译：进行了一项研究，以证明可以使用十八烷基胺（ODA）Langmuir Blodgett（LB）薄膜为模板，通过草酸钛酸钾钛的水解制备纳米级的二氧化钛（TiO_2）薄膜。发现在LB膜中产生的TiO 2的量与沉积的ODA层的数量成正比，这使得能够精确控制TiO 2膜的厚度。在300-600°C下对LB膜进行热处理后，由硬脂酸流延膜在不同时间段的紫外线照射下的分解确定了所得TiO_2膜的光催化活性。在较低温度下热处理的TiO_2薄膜中观察到较高的光催化活性。

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来源
《Journal of Oleo Science》 |2011年第1期|p.25-29|共5页
作者
Masashi Takahashi; Mitsuyuki Sendoh; Koichi Kobayashi; Kazuo Tajima;
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作者单位

Department of Chemistry and Energy Engineering, Tokyo City University (1-28-1 Tamazutsumi, Setagaya-ku, Tokyo 158-8557, JAPAN);

Department of Chemistry and Energy Engineering, Tokyo City University (1-28-1 Tamazutsumi, Setagaya-ku, Tokyo 158-8557, JAPAN);

Department of Chemistry and Energy Engineering, Tokyo City University (1-28-1 Tamazutsumi, Setagaya-ku, Tokyo 158-8557, JAPAN);

Project of Three-Phase Emulsion Technology, Kanagawa University, (3-27-1 Rokkakubashi, Kanagawa-ku, Yokohama 221-8686, JAPAN);

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正文语种 eng
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关键词
tio_2 thin film; lb technique; octadecylamine; titanium potassium oxalate; photocatalytic activity;

机译：tio_2薄膜;磅技术;十八胺;草酸钛钾;光催化活性;

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Preparation of TiO_2Thin Films Using Octadecylamine Langmuir-Blodgett Films and Evaluation of Their Photocatalytic Activity

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