| 微乳液制备粉煤灰微珠负载型La~(3+)、Fe~(3+)共掺杂TiO_2光催化剂 |
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| 引用本文： | 李丽,薛茹君,黄静,张洪流,代新营.微乳液制备粉煤灰微珠负载型La~(3+)、Fe~(3+)共掺杂TiO_2光催化剂[J].安徽大学学报(自然科学版),2011,35(5):94-99. |
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| 作者姓名： | 李丽 薛茹君 黄静 张洪流 代新营 |
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| 作者单位： | 1. 安徽理工大学学报编辑部,安徽淮南,232001
2. 安徽理工大学化学工程学院,安徽淮南,232001 |
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| 基金项目： | 安徽高校省级自然科学研究基金重大资助项目(ZD200903);淮南市本级科技专项基金资助项目 |
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| 摘 要： | 以粉煤灰微珠为载体,采用微乳液法制备La3+、Fe3+共掺杂TiO2光催化剂.并用透射电镜、扫描电镜对复合粒子的形貌进行观察;X射线衍射对煅烧后复合粒子中的组分进行分析;分光光度法测得TiO2在粉煤灰微珠表面的包覆率;分光光度计测定催化剂甲基橙的脱色率.实验结果表明:采用微乳液法制备的负载型Fe3+、La3+共掺杂TiO2尺寸均匀,分散度较好,包覆率达到35.67%,甲基橙的脱色率为48%,催化剂可再生5次.Fe3+、La3+共掺杂的协同作用使催化剂活性更高,Fe3+、La3+的最佳掺杂量分别为0.3%、1.0%.
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| 关 键 词： | 粉煤灰微珠 负载型催化剂 共掺杂 TiO2光催化剂 |
Preparation of supported Fe3+, La3+-doped TiO2 photo catalyst by micro-emulsion reaction |
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| li Li,XUE Ru-jun,HUANG Jing,ZHANG Hong-liu,DAI Xin-ying.Preparation of supported Fe3+, La3+-doped TiO2 photo catalyst by micro-emulsion reaction[J].Journal of Anhui University(Natural Sciences),2011,35(5):94-99. |
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| Authors: | li Li XUE Ru-jun HUANG Jing ZHANG Hong-liu DAI Xin-ying |
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| Institution: | 1.The Editorial Office,Anhui University of Science and Technology,Huainan 232001,China 2.Institute of Chemistry Engineering,Anhui University of Science and Technology,Huainan 232001,China) |
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| Abstract: | With fly ash as a carrier,La3+,Fe3+ co-doped TiO2 photo catalyst was prepared by micro-emulsion.The appearance of composite particles was observed by transmission electron microscopy and scanning electron microscopy.The component of the composite particles which have been calcined was analyzed by X-ray diffraction.The TiO2 covered degree of fly ash and its photo catalyst degradation of methly orange were measured by spectrophotometer.The results showed that La3+,Fe3+ co-doped TiO2/ fly ash had a well-distributed size and a good dispersion degree.The covered degree of TiO2 was 35.67%.The degradation of methly orange was 48%.The regeneration of TiO2 was five times.The synergistic effect of Fe3+,La3+ increased the activity of the photo catalyst when Fe3+-doped was 0.3% and the La3+-doped was 1.0%. |
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| Keywords: | fly ash supported catalyst co-doping TiO2 photo catalyst |
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