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化学学报
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化学学报 ›› 2010, Vol. 68 ›› Issue (05): 425-430. 上一篇    下一篇

研究论文

铁掺杂TiO2微米带的制备及其光催化性能

李巧玲*，赵静贤，李保东，张存瑞   

  1. (中北大学化学系 太原 030051)
  • 投稿日期:2009-04-29 修回日期:2009-07-14 发布日期:2010-03-14
  • 通讯作者: 李巧玲 E-mail:wangyongfei818623@163.com, qiaolinl@163.com
  • 基金资助:

    山西省自然基金项目(No.2009011099);山西省留学基金(No.2008064)，山西省高等学校优秀青年学术带头人支持计划

Preparation and Photocatalytic Property of Fe-doped TiO2 Micron Zonal Material

Li Qiaoling* Zhao Jingxian Li Baodong Zhang Cunrui   

  1. (Department of Chemistry, North University of China, Taiyuan 030051)
  • Received:2009-04-29 Revised:2009-07-14 Published:2010-03-14
  • Contact: Li Qiao-Ling E-mail:wangyongfei818623@163.com, qiaolinl@163.com

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采用模板法与溶胶-凝胶法结合, 以脱脂棉为模板制备了掺杂Fe3＋的TiO2微米带光催化材料. 并利用红外光谱(FTIR)、扫描电镜(SEM)、透射电镜(TEM)、X射线衍射(XRD)对掺杂不同比例Fe3＋产物的表面形貌及晶型进行了表征. 以甲基橙的脱色降解为模式反应, 考察了样品的光催化性能. 结果表明: 以脱脂棉为模板在酸性条件下制备出了宽度5～8 μm, 厚度约100～500 nm的TiO2带状体, 此条件下生成的纳米TiO2晶体晶粒直径大小10～30 nm, 长度100～500 nm, 呈棒状. 且得出当Fe3＋掺杂量为0.04%时光催化效果最优, 20 min对甲基橙的催化效率为91%.

关键词: 模板法, Fe3＋掺杂, TiO2微米带, 光催化

Combining the template method and sol-gel method, the Fe3＋ doped TiO2 micron zonal photocatalysis material was synthesized by a cotton template. The surface morphology and crystal features of the samples obtained by different Fe3＋ doping proportions were characterized by FTIR, SEM and X-ray diffractometry. By the methylene orange degradation as a model reaction, the photocatalytic property of the TiO2 micron zonal material was investigated. The results indicated that the zonal material was synthesized. The breadth was between 5 and 8 μm, and the wall thickness was between 100 and 500 nm. As the Fe3＋ doping proportion was 0.04%, the photocatalysis efficiency was at the maximum. And the photocatalysis efficiency on the methylene orange within 20 min was up to 91% under the optimum doping proportion.

Key words: template method, Fe3＋doping, TiO2 micron zonal material, photocatalysis