| 3种无机阴离子对负载型TiO2光催化去除氨氮的影响 |
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| 引用本文： | 赵海东,刘旭东,迟赫.3种无机阴离子对负载型TiO2光催化去除氨氮的影响[J].辽宁化工,2010,39(2):150-153. |
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| 作者姓名： | 赵海东 刘旭东 迟赫 |
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| 作者单位： | 沈阳建筑大学市政与环境工程学院,辽宁,沈阳,110168 |
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| 摘 要： | 以天然沸石为载体制备TiO2／天然沸石光催化剂，考察SO4^2- 、HCO3^- 和Cl^-对负载型TiO2光催化去除氨氮的影响。结果表明SO4^2- 、HCO3^-对光催化反应均有抑制作用，当溶液中SO4^2-浓度达到5．0mmol／L时，光催化反应速率由0．001793min^-1下降到0．000649min^-1，氨氮去除率下降了27％，当溶液中HCO3^-浓度达到5．0mmol／L时，光催化反应速率由0．001796min。下降到0．000562min^-1，氨氮去除率下降了32％，Cl^-浓度在0—50mmol／L范围内对光催化反应影响不明显。
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| 关 键 词： | 光催化 氨氮 SO4^2- HCO3^- Cl^- |
Effect of Three Kinds of Inorganic Anions on Supported Titanium Dioxide Photocatalysis to Treat Ammonia-nitrogen |
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| ZHAO Hai-dong,LIU Xu-dong,CHI He.Effect of Three Kinds of Inorganic Anions on Supported Titanium Dioxide Photocatalysis to Treat Ammonia-nitrogen[J].Liaoning Chemical Industry,2010,39(2):150-153. |
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| Authors: | ZHAO Hai-dong LIU Xu-dong CHI He |
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| Affiliation: | School of Municipal and Environmental Engineering/a>;Shenyang Jianzhu University/a>;Shenyang 110168/a>;China |
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| Abstract: | Natural zeolite was used as substrate to prepare titanium dioxide/zeolites photocatalyst.The influence of SO2-4,HCO-3 and Cl-on supported titanium dioxide photocatalysis to treat ammonia-nitrogen was discussed.The results show that SO2-4 and HCO-3 have negative effects on photocatalysis.When the concentration of SO2-4 in solution reaches to 5.0 mmol/L,photocatalytic reaction rate constant drops off from 0.001 793 min-1 to 0.000 649 min-1,the removal rate of ammonia-nitrogen reduces by 27%.And when the conce... |
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| Keywords: | Photocatalytic Ammonia-nitrogen SO2-4 HCO-3 Cl |
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