| 活性炭负载纳米TiO2光催化降解气相丙酮 |
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| 引用本文： | 李蓉,肖新颜,万彩霞. 活性炭负载纳米TiO2光催化降解气相丙酮[J]. 材料导报, 2011, 25(8): 68-70,73 |
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| 作者姓名： | 李蓉 肖新颜 万彩霞 |
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| 作者单位： | 华南理工大学化学与化工学院; |
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| 基金项目： | 国家自然科学基金项目(20176013); 广东省自然科学基金项目(8151064101000049) |
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| 摘 要： | 以钛酸四丁酯为前驱体,采用溶胶-凝胶法制得Fe、N离子共掺杂的以活性炭(AC)为载体的光催化剂(TiO2/AC),在紫外光照射下进行了气相丙酮的光催化降解研究。探讨了丙酮初始质量浓度、紫外光光强、催化剂用量、反应器内湿度等因素对其降解率的影响。结果表明,活性炭与TiO2的协同作用大大提高了对丙酮的降解效果;紫外光光强的增加对丙酮降解率有一定提高;使用3g光催化剂,丙酮的初始质量浓度为39.40mg/L;反应器内相对湿度为63%时,丙酮的降解效果最好,降解反应155min后丙酮的降解率达92.63%;催化剂循环使用6次后丙酮的降解率为83.91%。
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| 关 键 词： | 离子共掺杂二氧化钛 光催化剂 降解 活性炭 丙酮 |
Photocatalytic Degradation of Gaseous Acetone Using TiO_2 Nanoparticles Supported on Activated Carbon |
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| LI Rong,XIAO Xinyan,WANG Caixia. Photocatalytic Degradation of Gaseous Acetone Using TiO_2 Nanoparticles Supported on Activated Carbon[J]. Materials Review, 2011, 25(8): 68-70,73 |
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| Authors: | LI Rong XIAO Xinyan WANG Caixia |
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| Affiliation: | LI Rong,XIAO Xinyan,WANG Caixia(School of Chemistry and Chemical Engineering,South China University of Technology,Guangzhou 510640) |
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| Abstract: | Photocatalysts(TiO2/AC)codoped with Fe and N ions were prepared via the sol-gel method with butyl titanate Ti(OBu)4 as precursor and activated carbon(AC)as the supported.The photocatalytic degradation of ga-seous acetone by TiO2/AC under UV light was investigated.The main controlling factors,such as the initial mass concentration of acetone,the intensity of UV light,the amount of catalyst and the relative humidity in photoreactor,which affected the degradation rate of acetone were discussed.The results show... |
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| Keywords: | ion-codoped titania photocatalyst degradation activated carbon acetone |
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