Removal of Formaldehyde Using Highly Active Pt/TiO2 Catalysts without Irradiation
Formaldehyde (HCHO) is one of the major indoor air pollutants. TiO2 supported Pt catalysts were prepared by sol-gel method and used to eliminate HCHO at room temperature without irradiation. The reduced Pt/TiO2 catalyst (denoted as Pt/TiO2-H2) showed much higher activity than that calcined in air (d...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2013-01-01
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| Series: | International Journal of Photoenergy |
| Online Access: | http://dx.doi.org/10.1155/2013/350570 |
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| author | Haibao Huang Huiling Huang Peng Hu Xinguo Ye Dennis Y. C. Leung |
| author_facet | Haibao Huang Huiling Huang Peng Hu Xinguo Ye Dennis Y. C. Leung |
| author_sort | Haibao Huang |
| collection | DOAJ |
| description | Formaldehyde (HCHO) is one of the major indoor air pollutants. TiO2 supported Pt catalysts were prepared by sol-gel method and used to eliminate HCHO at room temperature without irradiation. The reduced Pt/TiO2 catalyst (denoted as Pt/TiO2-H2) showed much higher activity than that calcined in air (denoted as Pt/TiO2-air). More than 96% of the conversion of HCHO was obtained over 0.5 wt% Pt/TiO2-H2, on which highly dispersed metallic Pt nanoparticles with very small size (~2 nm) were identified. Metallic Pt rather than cationic Pt nanoparticles provide the active sites for HCHO oxidation. Negatively charged metallic Pt nanoparticles facilitate the transfer of charge and oxygen species and the activation of oxygen. |
| format | Article |
| id | doaj-art-fdd5c5ee73494257b099efd1fb911151 |
| institution | Kabale University |
| issn | 1110-662X 1687-529X |
| language | English |
| publishDate | 2013-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Photoenergy |
| spelling | doaj-art-fdd5c5ee73494257b099efd1fb9111512025-02-03T01:09:27ZengWileyInternational Journal of Photoenergy1110-662X1687-529X2013-01-01201310.1155/2013/350570350570Removal of Formaldehyde Using Highly Active Pt/TiO2 Catalysts without IrradiationHaibao Huang0Huiling Huang1Peng Hu2Xinguo Ye3Dennis Y. C. Leung4School of Environmental Science and Engineering, Sun Yat-Sen University, Guangzhou 510275, ChinaSchool of Environmental Science and Engineering, Sun Yat-Sen University, Guangzhou 510275, ChinaSchool of Environmental Science and Engineering, Sun Yat-Sen University, Guangzhou 510275, ChinaSchool of Environmental Science and Engineering, Sun Yat-Sen University, Guangzhou 510275, ChinaDepartment of Mechanical Engineering, The University of Hong Kong, Pokfulam Road, Hong KongFormaldehyde (HCHO) is one of the major indoor air pollutants. TiO2 supported Pt catalysts were prepared by sol-gel method and used to eliminate HCHO at room temperature without irradiation. The reduced Pt/TiO2 catalyst (denoted as Pt/TiO2-H2) showed much higher activity than that calcined in air (denoted as Pt/TiO2-air). More than 96% of the conversion of HCHO was obtained over 0.5 wt% Pt/TiO2-H2, on which highly dispersed metallic Pt nanoparticles with very small size (~2 nm) were identified. Metallic Pt rather than cationic Pt nanoparticles provide the active sites for HCHO oxidation. Negatively charged metallic Pt nanoparticles facilitate the transfer of charge and oxygen species and the activation of oxygen.http://dx.doi.org/10.1155/2013/350570 |
| spellingShingle | Haibao Huang Huiling Huang Peng Hu Xinguo Ye Dennis Y. C. Leung Removal of Formaldehyde Using Highly Active Pt/TiO2 Catalysts without Irradiation International Journal of Photoenergy |
| title | Removal of Formaldehyde Using Highly Active Pt/TiO2 Catalysts without Irradiation |
| title_full | Removal of Formaldehyde Using Highly Active Pt/TiO2 Catalysts without Irradiation |
| title_fullStr | Removal of Formaldehyde Using Highly Active Pt/TiO2 Catalysts without Irradiation |
| title_full_unstemmed | Removal of Formaldehyde Using Highly Active Pt/TiO2 Catalysts without Irradiation |
| title_short | Removal of Formaldehyde Using Highly Active Pt/TiO2 Catalysts without Irradiation |
| title_sort | removal of formaldehyde using highly active pt tio2 catalysts without irradiation |
| url | http://dx.doi.org/10.1155/2013/350570 |
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