| 纳米TiO2-ZnO复合材料的合成、结构与光催化性能 |
| Synthesis， Structure and Photocatalytic Property of Nano-TiO2-ZnO |
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| 摘要: |
| 关键词: 纳米复合氧化物 水热合成 光吸收性能 光催化 |
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| Abstract: Using ZnSO4 and TiCl4 as raw materials， nanometric TiO2-ZnO (ZnTiO3) is prepared at 180℃，0.8MPa by hydrothermal method. The effects of the reaction temperature and time on the nanometric TiO2-ZnO are also dis-cussed. XRD shows that the product is TiO2-ZnO (ZnTiO3) with noncrystal phase， and it changes to rhombic form above 870℃. TEM measurement indicates that the TiO2-ZnO is spherical particles， and the average diameter of the particles is 20nm. The UV light absorption properties are detected by UV spectrophotometer. The results show that the nanometric TiO2-ZnO has strong absorption at 200～370nm and at visible region. Photodegradation of dyes in an aqueous solution is investigated using nanometric TiO2-ZnO as a photocatalyst. The results show that after 60min illumination， the decolorization rate of the acidic red B and acidic black 234 dye can be arrived at 100%. |
| Keywords: nanometric TiO2-ZnO hydrothermal synthesis UV absorption photocatalysis |
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| 丁士文,王利勇,张绍岩,刘淑娟,丁宇,刘燕朝,康全影.纳米TiO2-ZnO复合材料的合成、结构与光催化性能[J].无机化学学报,2003,19(6):631-635. |
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