Acta Chimica Sinica ›› 2010, Vol. 68 ›› Issue (18): 1845-1849. Previous Articles     Next Articles

Full Papers



  1. (中北大学理学院化学系 太原 030051)
  • 投稿日期:2009-12-19 修回日期:2010-01-27 发布日期:2010-05-14
  • 通讯作者: 李建强
  • 基金资助:


Preparation and Photocatalytic Properties of Reticular TiO2 by Leaf Template Method

LI Jian-Qiang, LI Qiao-Ling, ZHAO Jing-Xian, LI Bing-Ru   

  1. (Department of Chemistry, School of Science, North University of China, Taiyuan 030051)
  • Received:2009-12-19 Revised:2010-01-27 Published:2010-05-14

Combining the template method and sol-gel method, the reticular TiO2 photocatalytic materials were prepared by using the pinnate vein leaves of Sophora japonica L. as the template. The surface morphology, components and crystal characterization of the samples obtained under different conditions were characterized by FT-IR, SEM, Energy Dispersive X-Ray Fluorescence Spectrometer (EDX) and X-ray diffractometry (XRD). By the methyl orange (MO) degradation as a model reaction, the effect of the macroscopic morphology on the photocatalytic properties of TiO2 was investigated. The results indicated the prepared TiO2 was reticular and its diameter was 5~10 μm, and even there were a few regular spherical TiO2 with diameter 2~3 μm and microtubule TiO2 with diameter 5 μm. For pH=3, the MO degradation rate by the reticular TiO2 in 3 h was higher by 37.2%, 44.6% than that of TiO2 powder and commercial TiO2 powder, respectively. And the degradation rate could keep more than 90% when it was repeatedly used for 4 times. And this paper introduced a new idea to prepare various morphological TiO2.

Key words: reticular titanium dioxide, leaf, venation, photocatalysis, template method