Photochemical Properties of Precipitated Titania Aerosol Produced by Powdering of Crystal Rutile under Ambient Air
It is shown that the quantum yields of oxygen photoadsorption and carbon dioxide photodesorption on TiO2 are significantly higher under illumination by quanta with energy from the surface absorption region of TiO2 when it is not produced by the traditional way, but from the rutile crystal. The magn...
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| Format: | Article |
| Language: | English |
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Wiley
2013-01-01
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| Series: | Journal of Chemistry |
| Online Access: | http://dx.doi.org/10.1155/2013/614724 |
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| _version_ | 1832558509388988416 |
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| author | Valery Zakharenko Alexey Filimonov |
| author_facet | Valery Zakharenko Alexey Filimonov |
| author_sort | Valery Zakharenko |
| collection | DOAJ |
| description | It is shown that the quantum yields of oxygen photoadsorption and carbon dioxide photodesorption on TiO2 are significantly higher under illumination by quanta with energy from the surface absorption region of TiO2 when it is not produced by the traditional way, but from the rutile crystal. The magnitudes and spectral dependencies of the quantum yield of photoadsorption and photodesorption for TiO2 produced from a monocrystal are determined. A mechanism of a sharp increase of the titania photoadsorption activity in the surface absorption region is proposed. |
| format | Article |
| id | doaj-art-2f4c4c03af0643999d682afe30a437aa |
| institution | Kabale University |
| issn | 2090-9063 2090-9071 |
| language | English |
| publishDate | 2013-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Chemistry |
| spelling | doaj-art-2f4c4c03af0643999d682afe30a437aa2025-02-03T01:32:09ZengWileyJournal of Chemistry2090-90632090-90712013-01-01201310.1155/2013/614724614724Photochemical Properties of Precipitated Titania Aerosol Produced by Powdering of Crystal Rutile under Ambient AirValery Zakharenko0Alexey Filimonov1Laboratory of Solar Energy Transformation, Boreskov Institute of Catalysis, Novosibirsk 630090, RussiaDepartments of Physical and Colloidal Chemistry, Tomsk State University, Tomsk 634050, RussiaIt is shown that the quantum yields of oxygen photoadsorption and carbon dioxide photodesorption on TiO2 are significantly higher under illumination by quanta with energy from the surface absorption region of TiO2 when it is not produced by the traditional way, but from the rutile crystal. The magnitudes and spectral dependencies of the quantum yield of photoadsorption and photodesorption for TiO2 produced from a monocrystal are determined. A mechanism of a sharp increase of the titania photoadsorption activity in the surface absorption region is proposed.http://dx.doi.org/10.1155/2013/614724 |
| spellingShingle | Valery Zakharenko Alexey Filimonov Photochemical Properties of Precipitated Titania Aerosol Produced by Powdering of Crystal Rutile under Ambient Air Journal of Chemistry |
| title | Photochemical Properties of Precipitated Titania Aerosol Produced by Powdering of Crystal Rutile under Ambient Air |
| title_full | Photochemical Properties of Precipitated Titania Aerosol Produced by Powdering of Crystal Rutile under Ambient Air |
| title_fullStr | Photochemical Properties of Precipitated Titania Aerosol Produced by Powdering of Crystal Rutile under Ambient Air |
| title_full_unstemmed | Photochemical Properties of Precipitated Titania Aerosol Produced by Powdering of Crystal Rutile under Ambient Air |
| title_short | Photochemical Properties of Precipitated Titania Aerosol Produced by Powdering of Crystal Rutile under Ambient Air |
| title_sort | photochemical properties of precipitated titania aerosol produced by powdering of crystal rutile under ambient air |
| url | http://dx.doi.org/10.1155/2013/614724 |
| work_keys_str_mv | AT valeryzakharenko photochemicalpropertiesofprecipitatedtitaniaaerosolproducedbypowderingofcrystalrutileunderambientair AT alexeyfilimonov photochemicalpropertiesofprecipitatedtitaniaaerosolproducedbypowderingofcrystalrutileunderambientair |