| 活性碳纤维负载TiO_2去除低浓度甲醛气体的实验研究 |
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| 引用本文： | 胡军,陈建华,贾铭椿.活性碳纤维负载TiO_2去除低浓度甲醛气体的实验研究[J].武汉理工大学学报(交通科学与工程版),2011(4). |
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| 作者姓名： | 胡军 陈建华 贾铭椿 |
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| 作者单位： | 海军工程大学; |
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| 摘 要： | 利用自制的光催化气体反应系统,模拟有限密闭空间特殊环境,以甲醛气体为代表,用溶胶凝胶法制得不同配比的TiO2并负载在活性碳纤维上,将其放入马弗炉中在不同温度下煅烧,最后测试其对甲醛的去除效率,且研究了活性炭纤维负载TiO2作为整体材料对甲醛的去除动力学方程.结果表明,冰醋酸、无水乙醇、去离子水和煅烧温度对去除效果的影响是交互的,理想配比下两小时去除率可达78.89%;活性炭纤维负载TiO2作为整体材料对低浓度甲醛的去除满足动力学方程ρA=m0+(ρ0A-m0)exp(-Kt);自制材料对甲醛的去除量为4 357.78mg/(h×m2),稳定性为78.3%.
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| 关 键 词： | 活性碳纤维负载TiO2 光催化 甲醛 动力学方程 |
Study on the Degradation of Low Concentration Formaldehyde Gas by TiO_2 Supported on Activated Carbon Fiber |
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| Hu Jun Chen Jianhua Jia Mingchun.Study on the Degradation of Low Concentration Formaldehyde Gas by TiO_2 Supported on Activated Carbon Fiber[J].journal of wuhan university of technology(transportation science&engineering),2011(4). |
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| Authors: | Hu Jun Chen Jianhua Jia Mingchun |
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| Institution: | Hu Jun Chen Jianhua Jia Mingchun(Naval University of Engineering,Wuhan 430033,China) |
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| Abstract: | A photocatalytic gas reactor system was manufactured to model the special airtight environment,and in this system TiO2 supported on activated carbon fiber was tested to wipe off the gas of formaldehyde.TiO2 nano-material was prepared by sol-gel method.Different proportion of mater to compose TiO2 which effected the degradation rate of formaldehyde and the reaction kinetics of TiO2 supported on activated carbon fiber as a whole were discussed.The results showed that: the proportion of acetic acid,ethanol and... |
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| Keywords: | TiO2 supported on activated carbon fiber photolysis formaldehyde reaction kinetics |
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