| 磁载光催化剂TiO2/SiO2/Ni0.5Fe2.5O4的制备及其催化氧化性能 |
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| 引用本文： | 包淑娟,张校刚,刘献明.磁载光催化剂TiO2/SiO2/Ni0.5Fe2.5O4的制备及其催化氧化性能[J].无机化学学报,2003,19(9):925-928. |
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| 作者姓名： | 包淑娟 张校刚 刘献明 |
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| 作者单位： | 新疆大学应用化学研究所,乌鲁木齐,830046 |
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| 基金项目： | 国家自然科学基金资助项目(No.50143023)，中科院“西部之光”资助项目。 |
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| 摘 要： | 采用固相反应法制备磁载体(SiO2/Ni0.5Fe2.5O4),溶胶-凝胶法得到易于磁分离回收的磁载光催化剂TiO2/SiO2/Ni0.5Fe2.5O4。用XRD、SEM、IR和UV-Vis等进行表征。研究了太阳光下催化剂对亚甲基蓝溶液的脱色性能。结果表明,在太阳光下,磁载光催化剂TiO2/SiO2/Ni0.5Fe2.5O4可使亚甲基蓝溶液迅速脱色；3次循环使用后脱色率仍为95%以上,回收率为98.8%。
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| 关 键 词： | 磁载 光催化剂 TiO2 亚甲基蓝 |
| 修稿时间： | 2003年1月22日 |
Preparation and Photocatalytic Activity of TiO2/SiO2/Ni0.5Fe2.5O4 Magnetic Photocatalyst |
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| BAO Shu-Juan,ZHANG Xiao-Gang and LIU Xian-Ming.Preparation and Photocatalytic Activity of TiO2/SiO2/Ni0.5Fe2.5O4 Magnetic Photocatalyst[J].Chinese Journal of Inorganic Chemistry,2003,19(9):925-928. |
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| Authors: | BAO Shu-Juan ZHANG Xiao-Gang and LIU Xian-Ming |
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| Institution: | Institute of Applied Chemistry, Xinjiang University, Urumqi 830046,Institute of Applied Chemistry, Xinjiang University, Urumqi 830046 and Institute of Applied Chemistry, Xinjiang University, Urumqi 830046 |
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| Abstract: | TiO2/SiO2/Ni0.5Fe2.5O4 have been successfully prepared by sol-gel method with magnetic core SiO2/Ni0.5Fe2.5O4 as matrix obtained by solid-phase reaction. Th ese samples were characterized by IR, XRD, and UV-Vis, respectively. Photocatal ytic activity of the catalyst was tested with methylene blue as decoloration sub stance. The results show that this novel photocatalysts can make methylene blue solution decoloration quickly under sunlight; The decoloration efficiency of TiO 2/SiO2/Ni0.5Fe2.5O4 attains 95%and the recycle efficiency of TiO2/SiO2/Ni0.5Fe2 .5O4 still keeps 98.8%after being used three times. |
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| Keywords: | magnetic photocatalysts TiO2 methylene blue |
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