| 纳米TiO2/活性炭复合光催化剂的制备及其对甲醛气体降解 |
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| 引用本文： | 柳思明,苏海佳.纳米TiO2/活性炭复合光催化剂的制备及其对甲醛气体降解[J].环境污染治理技术与设备,2012(9):3229-3232. |
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| 作者姓名： | 柳思明 苏海佳 |
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| 作者单位： | 北京化工大学北京市生物加工过程重点实验室,北京100029 |
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| 基金项目： | 国家自然科学基金资助项目（20876008,21076009）; 教育部新世纪优秀人才支持计划项目（NECT-100212） |
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| 摘 要： | 研究了纳米TiO2/活性炭复合光催化剂对空气中典型污染气体甲醛的光催化降解特性。采用扫描电镜（SEM）表征复合催化剂的表面特征。结果显示,经改性后的纳米TiO2在复合催化剂表面分布均匀,呈球状。对甲醛气体的降解实验显示TiO2负载量为1%时对甲醛的去除效果最好,6 h去除率为61.7%。结果显示复合催化剂把甲醛气体分解成CO2,可以直接排空,无二次污染。
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| 关 键 词： | TiO2 活性炭 复合光催化 甲醛气体 |
Preparation of AC/TiO2 composite material and photocatalytic degradation of gaseous formaldehyde |
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| Liu Siming Su Haijia.Preparation of AC/TiO2 composite material and photocatalytic degradation of gaseous formaldehyde[J].Techniques and Equipment for Environmental Pollution Control,2012(9):3229-3232. |
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| Authors: | Liu Siming Su Haijia |
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| Institution: | Liu Siming Su Haijia (Beijing Key Laboratory of BioProcess, Beijing University of Chemical and Technology, Beijing 100029, China) |
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| Abstract: | The effect of the nano-TiO2/activated carbon composite photocatalyst on photocatalytic degradation of formaldehyde,a typical pollution gas,was investigated.The surface characteristics of the composite photocatalyst were characterized by scan electron microscopy（SEM）.The results showed that spheroidal TiO2 distributed uniformly on the surface of activated carbon.The optimal removal rate of formaldehyde was 61.7% under TiO2 concentration of 1% after 6 hours.The results showed formaldehyde was decomposed to CO2 which could be directly discharged without secondary pollution. |
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| Keywords: | TiO2 active carbon photocatalytic gaseous formaldehyde |
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