| TiO2纳米管催化活性再生处理技术 |
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| 引用本文： | 刘翠云,傅大放,孟钦伟.TiO2纳米管催化活性再生处理技术[J].环境污染治理技术与设备,2014(1):403-408. |
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| 作者姓名： | 刘翠云 傅大放 孟钦伟 |
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| 作者单位： | [1]南京工业大学环境学院,南京210009 [2]东南大学土木工程学院,南京210096 |
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| 基金项目： | 国家自然科学基金资助项目（51008064）;江苏省高校自然科学研究项目（13KJB560007）;南京工业大学实验室开放项目 |
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| 摘 要： | 采用H2O2、Fe2（SO4）3和Fenton溶液对失活的TiO2纳米管进行再生处理，重点考察了3种溶液的浓度和处理时间等对再生效果的影响，初步分析了经处理后TiO2纳米管催化活性得到再生或增强的机理。结果表明，经H2O2溶液处理后TiO2催化活性能得到有效再生，经Fe2（SO4）3，和Fenton溶液处理后其催化活性不仅得到再生，还能显著增强，这与H2O2和Fenton的强氧化作用，及进入TiO2纳米管的Fe3＋的阻止电子．空穴对再复合作用有关。
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| 关 键 词： | TiO2纳米管催化活性再生增强 |
Regeneration technologies for catalytic activity of TiO2 nanotubes |
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| Liu Cuiyun＇ Fu Dafang Meng Qinwei.Regeneration technologies for catalytic activity of TiO2 nanotubes[J].Techniques and Equipment for Environmental Pollution Control,2014(1):403-408. |
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| Authors: | Liu Cuiyun＇ Fu Dafang Meng Qinwei |
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| Institution: | Liu Cuiyun＇ Fu Dafang Meng Qinwei＇ (1. College of Environment, Nanjing University of Technology, Nanjing 210009, China; 2. School of Civil Engineering, Southeast University, Nanjing 210096, China) |
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| Abstract: | The deactivated TiO2 nanotubes were regenerated using H2O2 , Fe2 （SO4 ）3 and Fenton solutions, respectively. The impacts of concentrations and treatment times of the three solutions on regeneration efficiency were investigated emphatically, and the regeneration or enhancement mechanism of catalytic activity of the TiO2 nanotubes treated by the regeneration technologies above was preliminarily analyzed. The results indicated that the catalytic activity of the TiO2 nanotubes treated by H202solution could be regenerated mostly, while for the TiO2 nanotubes treated by Fe2 （SO4） 3 or Fenton solution, the catalytic activity was regenerated and enhanced re- markably. It could be attributed to the strong oxidation role of H2O2 or Fenton, and the preventing hole-electron recombination role of the Fe3＋ that entered into TiO2 notubes. |
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| Keywords: | TiO2 nanotubes catalytic activity regeneration enhancement |
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