| 负载型共掺杂TiO2对城市废水的日光降解作用 |
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| 引用本文： | 薛茹君,代新营,黄静.负载型共掺杂TiO2对城市废水的日光降解作用[J].淮南工业学院学报,2011(4):9-12. |
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| 作者姓名： | 薛茹君 代新营 黄静 |
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| 作者单位： | 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： | 安徽省教育厅自然科学研究重大基金资助项目（ZD200903）; 淮南市科技专项基金资助项目 |
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| 摘 要： | 采用过渡金属与稀土离子共掺杂对TiO2/漂珠光催化剂进行改性,以提高其日光催化性能。以紫外-可见漫反射光谱研究了粉煤灰微珠负载共掺杂TiO2光催化剂的光吸收性能;考察了催化剂对城市废水的日光催化降解性能。实验结果表明：所制备的各种共掺杂TiO2/漂珠催化剂在太阳光照射下对有机废水有较好的降解效果;废水的pH=6.5、催化剂投入量为3.5g/L时,其降解率最大,日光照射5 h后,降解率可以达到85.12%（CODCr）和73.4%（NH3-N）。催化剂使用后可以活化再生2次。
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| 关 键 词： | 日光降解 共掺杂TiO2 城市废水 |
Performance of Sunlight Catalytic Degradation of Urban Waste water of Carried Co-doped TiO_2 |
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| XUE Ru-jun,DAI Xin-ying,HUANG Jing.Performance of Sunlight Catalytic Degradation of Urban Waste water of Carried Co-doped TiO_2[J].Journal of Huainan Institute of Technology(Natural Science),2011(4):9-12. |
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| Authors: | XUE Ru-jun DAI Xin-ying HUANG Jing |
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| Affiliation: | (School of Chemical Engineering,Anhui University of Science and Technology,Huainan Anhui 232001,China) |
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| Abstract: | TiO2/cenosphere photocatalyst was modified via co-doped with transition metal ions and rare earth metal ions to raise its sunlight catalytic activity.Sunlight absorption performances of the co-doped TiO2/cenosphere photocatalysts were investigated by UV-visible spectrophotometer.The degradation capacities of city waste water on the co-doped TiO2/cenosphere photocatalysts were studied.The results show that the sunlight photocatalytic activity of the co-doped TiO2/cenosphere was better.They possess the best degradation capacity when the pH value of waste water = 6.5 and the catalyst dosage at 3.5 g/L.The degradation rate of city waste water could reach 85.12%（CODCr） and 73.4%（NH3-N） after 5 h sunlight irradiation.The used-up photocatalyst could be reactivated 2 times. |
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| Keywords: | sunlight catalytic degradation co-doped TiO2 urban wastewater |
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