Preparation of Porous Nano TiO<sub>2</sub> Film and Its Photocatalytic Activity for Degradation of NO

胡晓宏; 刘艳华; 于琳宇; 金永飞

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Preparation of Porous Nano TiO₂ Film and Its Photocatalytic Activity for Degradation of NO

更新时间：2025-12-08

- Preparation of Porous Nano TiO₂ Film and Its Photocatalytic Activity for Degradation of NO
- Vol. 42, Issue 1, Pages: 87-90(2008)
- 作者机构：
  
  西安交通大学建筑环境与设备工程系,西安,710049
- 作者简介：
- 基金信息：
- DOI：
  CLC： X13
- Online First：10 January 2008，
  
  Published：2008
- 稿件说明：
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胡晓宏, 刘艳华, 于琳宇, et al. Preparation of Porous Nano TiO₂ Film and Its Photocatalytic Activity for Degradation of NO[J]. 2008, 42(1): 87-90.
DOI：

胡晓宏, 刘艳华, 于琳宇, et al. Preparation of Porous Nano TiO₂ Film and Its Photocatalytic Activity for Degradation of NO[J]. 2008, 42(1): 87-90. DOI：

摘要

采用溶胶凝胶法制备了纳米TiO

多孔薄膜.通过XRD对薄膜进行了物相分析

利用自制的反应器讨论了聚乙二醇(PEG)的相对分子质量和添加量、温度、镀膜次数对TiO

薄膜光催化氧化NO活性的影响

并考察了再生过程对TiO

薄膜光催化活性的影响.研究结果表明:相对分子质量为1 000的PEG是制备多孔TiO

薄膜合适的造孔剂

其最佳添加量w(PEG)为0.5%; 制膜的最佳温度在450 ℃左右; 最佳镀膜次数为16次; NaOH溶液相对蒸馏水可更好地使薄膜再生

再生后可使薄膜的光催化活性更稳定.

Abstract

Porous nano TiO

film was prepared by a sol-gel dip-coating technology from alkoxide solutions containing polyethylene glycol(PEG). By analysis of XRD and efficiency of degradation of NO

the influences of PEG relative molecular mass and content

temperature

time of coating on activity were discussed. In addition

the activities before and after regeneration were examined. The results show that PEG with relative molecular mass 1 000 is a proper template to prepare porous film. The optimal mass fraction of PEG is 0.5% in the sol. The optimal heat treatment temperature is about 450 ℃

and the optimal coating times is 16. NaOH solution can yield more stable photocatalytic ability of the film after regeneration than distilled water.

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references

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余家国, 赵修建.多孔TiO2光催化纳米薄膜的制备和微观结构研究[J]. 无机材料学报,2000,15(2):347-355.

YU Jiaguo, ZHAO Xiujian. Preparation and microstructure of the porous TiO2 nanometer thin films by sol-gel method [J]. Journal of Inorganic Materials, 2000,15(2):347-355.

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Preparation of Porous Nano TiO2 Film and Its Photocatalytic Activity for Degradation of NO

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Preparation of Porous Nano TiO₂ Film and Its Photocatalytic Activity for Degradation of NO