| 毕先均.离子液体介质中微波辅助制备铁掺杂纳米TiO2及光催化活性[J].分子催化,2010,(6):0 |
| 离子液体介质中微波辅助制备铁掺杂纳米TiO2及光催化活性 |
| Microwave assisted preparation of Fe-doped nano-particle TiO2 in ionic liquid and Its photo-catalytic Activity |
| 投稿时间：2010-10-10 修订日期：2010-11-10 |
| DOI： |
| 中文关键词: 离子液体 微波 铁掺杂 TiO2 光催化降解 |
| 英文关键词:Ionic liquid Microwave Fe -doping Titanium dioxide Photo-catalytic degradation |
| 基金项目:国家自然科学基金项目（面上项目，重点项目，重大项目） |
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| 中文摘要: |
| 在1-丁基-3-甲基咪唑六氟磷酸盐（[Bmim]PF6）离子液体中，用微波干燥的方法制备了铁掺杂的纳米TiO2-Fe光催化剂，并以甲基橙为模拟污染物，紫外灯为光源，考察了离子液体加入量、铁掺杂量、微波干燥功率、微波干燥时间、煅烧温度、煅烧时间等因素对TiO2-Fe 光催化活性的影响。结果表明：在离子液体加入量为5.6 ml，掺杂物质硝酸铁与钛酸丁酯的物质的量百分比为0.005%，于家用微波炉中在210W功率下干燥17.5min，再在高温箱式电阻炉中于540 ℃煅烧处理1.5 h后所制得的TiO2-Fe光催化剂，经紫外光照90 min后，甲基橙几乎达到完全降解；经太阳光照射3 h后，甲基橙也几乎达到完全降解，其活性均明显优于未掺杂纯TiO2 的光催化活性。 |
| 英文摘要: |
| Fe-doped nano-TiO2 photo-catalysts were obtained by microwave drying in ionic liquids. With Methyl Orange as degradation agent and ultraviolet lamp as light source, the influence of the volume of the ionic liquid，Fe/Ti mole ratio，microwave drying power and time，calcined temperature and time on the photo-catalytic activities of Fe-doped nano-TiO2 were investigated. The results indicated that the Fe-doped nano-TiO2 catalysts showed higher photo-catalytic activity than that of pure while the Fe/Ti mole ratio was 0.005% and the Fe-doped nano-TiO2 was dried in microwave with the power of 210 W for 17.5 min and calcined at 540 ℃ for 1.5 h. The methyl orange had almost been entirely degraded by UV light lighting 90 min or by sun light lighting 3h when the TiO2-Fe was used as photo-catalysts. |
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