J4 ›› 2012, Vol. 42 ›› Issue (2): 514-518.

• 地质工程与环境工程 • 上一篇    下一篇

TiO2/电气石复合物的光催化性能

王玉洁1|许双英2|赵以辛2|蒋引珊2   

  1. 1.吉林大学测试科学实验中心|长春130026;
    2.吉林大学材料科学与工程学院|长春130026
  • 收稿日期:2011-07-07 出版日期:2012-03-26 发布日期:2012-03-26
  • 通讯作者: 蒋引珊 （1954-），女，教授，博士生导师,主要从事无机功能和矿物材料研究 E-mail:jiangys@jlu.edu.cn
  • 作者简介:王玉洁(1957-)|女|高级工程师|主要从事材料测试与开发研究|E-mail:wangyujie@jlu.edu.cn
  • 基金资助:

    国家自然科学基金项目（41072025）；吉林省科技发展计划项目（20100428）

Photocatalytic Properties of TiO2/Tourmaline Composite

Wang Yu-jie1, Xu Shuang-ying2, Zhao Yi-xin2, Jiang Yin-shan2   

  1. 1.Experimental Center of Testing Science, Jilin University, Changchun130026, China;
    2.College of Materials Science and Engineering, Jilin University, Changchun130026, China
  • Received:2011-07-07 Online:2012-03-26 Published:2012-03-26

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摘要：

采用溶胶-凝胶法制备TiO2/电气石复合光催化剂，通过光降解甲基橙实验考察复合光催化剂的活性，发现复合物中2%电气石的制备比例就可以显著提升TiO2降解有机物活性，降解率（0.5 h）达99.87%,明显优于纯TiO2（0.5 h）83.64%，提高了约20%。经XRD、BET、SEM等手段对样品进行分析得知：经800 ℃以下长时间热处理，电气石的结晶构造不变；900 ℃热处理使电气石结构破坏。SEM分析显示复合物中TiO2颗粒呈球簇状，均匀包覆在电气石表面形成颗粒膜层。

关键词: 复合光催化剂, 热处理, 电气石, 二氧化钛

Abstract:

TiO2/tourmaline composite photocatalysts were prepared by sol-gel method. The activities of the composite photocatalysts were studied by the photodegradation of methyl orange experiments. The results showed that the degradation activity of organic compounds could be improved significantly by added 2% tourmaline ratio in the composite photocatalyst preparation. The degradation rate (0.5 h) was up to 99.87%, increased by 20%, which was better than that of the pure TiO2 (83.64%). By using the methods XRD, BET and SEM, it was found that the structure of tourmaline was not changed via the heat treatment at 800 ℃ for a long time, but it was destroyed via the heat treatment at 900 ℃ for the same time. The TiO2 particles appeared as conglobulation and evenly covered on the surface of tourmaline to form a particle layer by the analysis of SEM.

Key words: composite photocatalysts, heat treatment, tourmaline, TiO2

中图分类号: 

  • P578.953
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