| A kinetic model for describing effect of the external surface concentration of TiO2 on the reactivity of eggshell activated carbon supported TiO2 photocatalyst |
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| 引用本文： | ZHANG XingWang LEI LeCheng. A kinetic model for describing effect of the external surface concentration of TiO2 on the reactivity of eggshell activated carbon supported TiO2 photocatalyst[J]. 科学通报(英文版), 2007, 52(24): 3339-3345. DOI: 10.1007/s11434-007-0497-1 |
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| 作者姓名： | ZHANG XingWang LEI LeCheng |
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| 作者单位： | Institute of Environmental Pollution Control Technologies, Xixi Campus, Zhejiang University, Hangzhou 310028, China |
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| 摘 要： | The porous support supported TiO2 is considered to be the promising photocatalyst due to the fact that it is easily recovered from water and has high capacity to mineralize pollutants. Obviously, the expected structure of this kind of photocatalyst is egg-shell, that is, TiO2 is mainly on the external surface of the porous support. The reactivity of the supported photocatalyst strongly depends on the concentration of TiO2 on the external surface of the porous support. In this study, a kinetic model was developed to describe the effect of the external surface concentration of TiO2 （CESC） on the reactivity of egg-shell activated carbon （AC） supported TiO2 photocatalysts. It was found that the obtained model precisely described the effect of CESC, on the reactivity of TiO2/AC photocatalysts. This study can be used to deeply understand the performance of TiO2/AC catalysts and to provide valuable information on designing efficient supported TiO2 photocatalysts.
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| 关 键 词： | 光催化剂 动态模型 蛋壳 活性炭 二氧化钛 |
| 收稿时间： | 2007-06-11 |
| 修稿时间： | 2007-08-20 |
A kinetic model for describing effect of the external surface concentration of TiO2 on the reactivity of eggshell activated carbon supported TiO2 photocatalyst |
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| XingWang Zhang,LeCheng Lei. A kinetic model for describing effect of the external surface concentration of TiO2 on the reactivity of eggshell activated carbon supported TiO2 photocatalyst[J]. Chinese science bulletin, 2007, 52(24): 3339-3345. DOI: 10.1007/s11434-007-0497-1 |
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| Authors: | XingWang Zhang LeCheng Lei |
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| Affiliation: | (1) Institute of Environmental Pollution Control Technologies, Xixi Campus, Zhejiang University, Hangzhou, 310028, China |
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| Abstract: | The porous support supported TiO2 is considered to be the promising photocatalyst due to the fact that it is easily recovered from water and has high capacity to mineralize pollutants. Obviously, the expected structure of this kind of photocatalyst is egg-shell, that is, TiO2 is mainly on the external surface of the porous support. The reactivity of the supported photocatalyst strongly depends on the concentration of TiO2 on the external surface of the porous support. In this study, a kinetic model was developed to describe the effect of the external surface concentration of TiO2 (CESC) on the reactivity of egg-shell activated carbon (AC) supported TiO2 photocatalysts. It was found that the obtained model precisely described the effect of CESC, on the reactivity of TiO2/AC photocatalysts. This study can be used to deeply understand the performance of TiO2/AC catalysts and to provide valuable information on designing efficient supported TiO2 photocatalysts. |
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| Keywords: | supported catalysts kinetic model egg-shell |
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