SiO2-TiO2 Films Supported on Ignimbrite by Spray Coating for the Photocatalytic Degradation of NOx Gas and Methyl Orange Dye
In this work, a SiO2-TiO2 coating, composed of different numbers of TiO2 and SiO2 layers, was fabricated by a spray-coating technique. The films were deposited onto ignimbrite rock and divided into two groups according to the number of SiO2 layers applied, 10 and 15 layers of SiO2 and 5 layers of Ti...
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| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2020-01-01
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| Series: | International Journal of Photoenergy |
| Online Access: | http://dx.doi.org/10.1155/2020/4756952 |
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| author | Daily Maria Magdalena Gallegos Florez Rivalino Benicio Guzman Ale Albeniz Ferdinand Huaracallo Idme Luis Antonio Lazo Alarcon Edgar Apaza Huallpa Yolanda Castro Pierre Giovanny Ramos Apestegui Juan Martin Rodriguez Rodriguez |
| author_facet | Daily Maria Magdalena Gallegos Florez Rivalino Benicio Guzman Ale Albeniz Ferdinand Huaracallo Idme Luis Antonio Lazo Alarcon Edgar Apaza Huallpa Yolanda Castro Pierre Giovanny Ramos Apestegui Juan Martin Rodriguez Rodriguez |
| author_sort | Daily Maria Magdalena Gallegos Florez |
| collection | DOAJ |
| description | In this work, a SiO2-TiO2 coating, composed of different numbers of TiO2 and SiO2 layers, was fabricated by a spray-coating technique. The films were deposited onto ignimbrite rock and divided into two groups according to the number of SiO2 layers applied, 10 and 15 layers of SiO2 and 5 layers of TiO2 for each group. The morphology and chemical composition of the synthesized samples were characterized by field emission scanning electron microscopy (FE-SEM) and energy dispersive X-ray spectrometer (EDS), which reveal the successful SiO2-TiO2 coating on ignimbrite. The photocatalytic activities of samples obtained were evaluated toward the decomposition of 3 ppm of methyl orange (MO). Finally, NOx gas degradation was studied. The obtained results evidenced that the SiO2 and TiO2 coating improved the photocatalytic activity of ignimbrite. |
| format | Article |
| id | doaj-art-06f7ca954ec64eb49674624bec728c83 |
| institution | Kabale University |
| issn | 1110-662X 1687-529X |
| language | English |
| publishDate | 2020-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Photoenergy |
| spelling | doaj-art-06f7ca954ec64eb49674624bec728c832025-02-03T01:05:01ZengWileyInternational Journal of Photoenergy1110-662X1687-529X2020-01-01202010.1155/2020/47569524756952SiO2-TiO2 Films Supported on Ignimbrite by Spray Coating for the Photocatalytic Degradation of NOx Gas and Methyl Orange DyeDaily Maria Magdalena Gallegos Florez0Rivalino Benicio Guzman Ale1Albeniz Ferdinand Huaracallo Idme2Luis Antonio Lazo Alarcon3Edgar Apaza Huallpa4Yolanda Castro5Pierre Giovanny Ramos Apestegui6Juan Martin Rodriguez Rodriguez7Universidad Nacional de San Agustín de Arequipa, PeruUniversidad Nacional de San Agustín de Arequipa, PeruUniversidad Nacional de San Agustín de Arequipa, PeruUniversidad Nacional de San Agustín de Arequipa, PeruUniversidad Nacional de San Agustín de Arequipa, PeruInstitute of Ceramics and Glass-CSIC-Madrid, SpainCenter for the Development of Advanced Materials and Nanotechnology, Universidad Nacional de Ingeniería, Av. Túpac Amaru, 210 Lima, PeruCenter for the Development of Advanced Materials and Nanotechnology, Universidad Nacional de Ingeniería, Av. Túpac Amaru, 210 Lima, PeruIn this work, a SiO2-TiO2 coating, composed of different numbers of TiO2 and SiO2 layers, was fabricated by a spray-coating technique. The films were deposited onto ignimbrite rock and divided into two groups according to the number of SiO2 layers applied, 10 and 15 layers of SiO2 and 5 layers of TiO2 for each group. The morphology and chemical composition of the synthesized samples were characterized by field emission scanning electron microscopy (FE-SEM) and energy dispersive X-ray spectrometer (EDS), which reveal the successful SiO2-TiO2 coating on ignimbrite. The photocatalytic activities of samples obtained were evaluated toward the decomposition of 3 ppm of methyl orange (MO). Finally, NOx gas degradation was studied. The obtained results evidenced that the SiO2 and TiO2 coating improved the photocatalytic activity of ignimbrite.http://dx.doi.org/10.1155/2020/4756952 |
| spellingShingle | Daily Maria Magdalena Gallegos Florez Rivalino Benicio Guzman Ale Albeniz Ferdinand Huaracallo Idme Luis Antonio Lazo Alarcon Edgar Apaza Huallpa Yolanda Castro Pierre Giovanny Ramos Apestegui Juan Martin Rodriguez Rodriguez SiO2-TiO2 Films Supported on Ignimbrite by Spray Coating for the Photocatalytic Degradation of NOx Gas and Methyl Orange Dye International Journal of Photoenergy |
| title | SiO2-TiO2 Films Supported on Ignimbrite by Spray Coating for the Photocatalytic Degradation of NOx Gas and Methyl Orange Dye |
| title_full | SiO2-TiO2 Films Supported on Ignimbrite by Spray Coating for the Photocatalytic Degradation of NOx Gas and Methyl Orange Dye |
| title_fullStr | SiO2-TiO2 Films Supported on Ignimbrite by Spray Coating for the Photocatalytic Degradation of NOx Gas and Methyl Orange Dye |
| title_full_unstemmed | SiO2-TiO2 Films Supported on Ignimbrite by Spray Coating for the Photocatalytic Degradation of NOx Gas and Methyl Orange Dye |
| title_short | SiO2-TiO2 Films Supported on Ignimbrite by Spray Coating for the Photocatalytic Degradation of NOx Gas and Methyl Orange Dye |
| title_sort | sio2 tio2 films supported on ignimbrite by spray coating for the photocatalytic degradation of nox gas and methyl orange dye |
| url | http://dx.doi.org/10.1155/2020/4756952 |
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