| Structural characteristics of zeolite/TiO-2 composite and photocatalysis of toluene degradation |
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| 引用本文： | 明彩兵,吴平霄. Structural characteristics of zeolite/TiO-2 composite and photocatalysis of toluene degradation[J]. 中国地球化学学报, 2005, 0(4) |
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| 作者姓名： | 明彩兵 吴平霄 |
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| 作者单位： | College of Automotive Engineering，South China University of Technology，Guangzhou 510640，China，College of Environmental Science and Engineering，South China University of Technology，Guangzhou 510640，China |
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| 基金项目： | TheprojectwassupportedbytheNationalNaturalScienceFoundationofChina(GrantNo.40202007)andtheGuangdongProvincialScienceFoundation(GrantNos.04020017,020938and000623). |
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| 摘 要： | 1Introduction Researchontheapplicationofnaturalminerals(zeolite,montmorillonite,etc.)inenvironmentalpro tectionisattractinggreatattentionofmoreandmorere searchers(WuPingxiaoetal.,2001;Suhasetal.,2000).Asthenaturalmineralshavelargenumbersof micro poresandbigsurfaceareas,thezeolite/TiO2compositephotocatalystcanbepreparedbycombining TiO2withzeolite.Nucleus formationfreeenergyof TiO2crystaldecreasesinamulti phasesystemofzeo lite,whichhelpsformnanometerTiO2crystalanden richstructuralhydroxyl;op…
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Structural characteristics of zeolite/TiO-2 composite and photocatalysis of toluene degradation |
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| MING Caibing and WU Pingxiao College of Automotive Engineering,South China University of Technology,Guangzhou ,China College of Environmental Science and Engineering,South China University of Technology,Guangzhou ,China. Structural characteristics of zeolite/TiO-2 composite and photocatalysis of toluene degradation[J]. Chinese Journal of Geochemistry, 2005, 0(4) |
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| Authors: | MING Caibing WU Pingxiao College of Automotive Engineering South China University of Technology Guangzhou China College of Environmental Science Engineering South China University of Technology Guangzhou China |
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| Affiliation: | MING Caibing 1 and WU Pingxiao 21 College of Automotive Engineering,South China University of Technology,Guangzhou 510640,China2 College of Environmental Science and Engineering,South China University of Technology,Guangzhou 510640,China |
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| Abstract: | Zeolite/TiO-2 composite photocatalysts were prepared by adding a certain amount of mordenite in TiO-2, and degradation experiments on toluene through photocatalytic reactions were implemented. In this paper, these photocatalysts were characterized by using SEM, IR, RAMAN, XRD and UV-Vis to shed light on the microstructure and photocatalytic performance of the composite photocatalysts. The results indicated that the structural hydroxy of zeolite can participate in bonding reaction with TiO-2, the addition of zeolite can greatly reduce the diameter of nanometer TiO-2 particles in the composite photocatalysts, and enhance the ultraviolet light absorptance of the composite photocatalysts. When the percentage content of zeolite reached 20%, the photocatalytic performance of this catalyst would be highest, with the toluene conversion rate up to {94.58%}. |
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| Keywords: | zeolite/TiO-2 composite photocatalysis toluene structure |
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