Photocatalytic Activity in CH3CN Related to the Surface Properties of TiO2 Powders Prepared by Sol-Gel Method
Some TiO2 powders, prepared from titanium(IV)tetraisopropoxide by the sol-gel method and thermally treated between 100 and 1000∘C, have been characterized by X-ray powder diffraction and by nitrogen adsorption and desorption at 77 K to calculate the BET-specific surface area, from which the micropor...
| Published in: | International Journal of Photoenergy |
|---|---|
| Main Authors: | , , , , , , |
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2009-01-01
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| Online Access: | http://dx.doi.org/10.1155/2009/905987 |
| _version_ | 1849667312132554752 |
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| author | Marta Bettoni Pietro Candori Fabio Marmottini Nicoletta Perenze Cesare Rol Giovanni V. Sebastiani Franco Vecchiocattivi |
| author_facet | Marta Bettoni Pietro Candori Fabio Marmottini Nicoletta Perenze Cesare Rol Giovanni V. Sebastiani Franco Vecchiocattivi |
| author_sort | Marta Bettoni |
| collection | DOAJ |
| container_title | International Journal of Photoenergy |
| description | Some TiO2 powders, prepared from titanium(IV)tetraisopropoxide by the sol-gel method and thermally treated between 100 and 1000∘C, have been characterized by X-ray powder diffraction and by nitrogen adsorption and desorption at 77 K to calculate the BET-specific surface area, from which the micropore volume and the external surface area can be derived. The photocatalytic activity (ka) of the above powders has been evaluated considering the TiO2-sensitized photo-oxidation of 4-methoxybenzyl alcohol in CH3CN as the test reaction. The decrease of ka have been related to the decrease of the BET surface area, the micropore volume, and the external surface area of the TiO2 powders, but a satisfactory linear correlation is observed only for the last superficial parameter. |
| format | Article |
| id | doaj-art-c82b06dfd44e4ebea8293bed480071fd |
| institution | Directory of Open Access Journals |
| issn | 1110-662X 1687-529X |
| language | English |
| publishDate | 2009-01-01 |
| publisher | Wiley |
| record_format | Article |
| spelling | doaj-art-c82b06dfd44e4ebea8293bed480071fd2025-08-20T02:19:45ZengWileyInternational Journal of Photoenergy1110-662X1687-529X2009-01-01200910.1155/2009/905987905987Photocatalytic Activity in CH3CN Related to the Surface Properties of TiO2 Powders Prepared by Sol-Gel MethodMarta Bettoni0Pietro Candori1Fabio Marmottini2Nicoletta Perenze3Cesare Rol4Giovanni V. Sebastiani5Franco Vecchiocattivi6Dipartimento di Ingegneria Civile ed Ambientale, Università di Perugia, Via G. Duranti, 06125 Perugia, ItalyDipartimento di Ingegneria Civile ed Ambientale, Università di Perugia, Via G. Duranti, 06125 Perugia, ItalyDipartimento di Ingegneria Civile ed Ambientale, Università di Perugia, Via G. Duranti, 06125 Perugia, ItalyDipartimento di Ingegneria Civile ed Ambientale, Università di Perugia, Via G. Duranti, 06125 Perugia, ItalyDipartimento di Chimica, Università di Perugia, Via Elce di Sotto, 06123 Perugia, ItalyDipartimento di Ingegneria Civile ed Ambientale, Università di Perugia, Via G. Duranti, 06125 Perugia, ItalyDipartimento di Ingegneria Civile ed Ambientale, Università di Perugia, Via G. Duranti, 06125 Perugia, ItalySome TiO2 powders, prepared from titanium(IV)tetraisopropoxide by the sol-gel method and thermally treated between 100 and 1000∘C, have been characterized by X-ray powder diffraction and by nitrogen adsorption and desorption at 77 K to calculate the BET-specific surface area, from which the micropore volume and the external surface area can be derived. The photocatalytic activity (ka) of the above powders has been evaluated considering the TiO2-sensitized photo-oxidation of 4-methoxybenzyl alcohol in CH3CN as the test reaction. The decrease of ka have been related to the decrease of the BET surface area, the micropore volume, and the external surface area of the TiO2 powders, but a satisfactory linear correlation is observed only for the last superficial parameter.http://dx.doi.org/10.1155/2009/905987 |
| spellingShingle | Marta Bettoni Pietro Candori Fabio Marmottini Nicoletta Perenze Cesare Rol Giovanni V. Sebastiani Franco Vecchiocattivi Photocatalytic Activity in CH3CN Related to the Surface Properties of TiO2 Powders Prepared by Sol-Gel Method |
| title | Photocatalytic Activity in CH3CN Related to the Surface Properties of TiO2 Powders Prepared by Sol-Gel Method |
| title_full | Photocatalytic Activity in CH3CN Related to the Surface Properties of TiO2 Powders Prepared by Sol-Gel Method |
| title_fullStr | Photocatalytic Activity in CH3CN Related to the Surface Properties of TiO2 Powders Prepared by Sol-Gel Method |
| title_full_unstemmed | Photocatalytic Activity in CH3CN Related to the Surface Properties of TiO2 Powders Prepared by Sol-Gel Method |
| title_short | Photocatalytic Activity in CH3CN Related to the Surface Properties of TiO2 Powders Prepared by Sol-Gel Method |
| title_sort | photocatalytic activity in ch3cn related to the surface properties of tio2 powders prepared by sol gel method |
| url | http://dx.doi.org/10.1155/2009/905987 |
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