SiO2-TiO2 Films Supported on Ignimbrite by Spray Coating for the Photocatalytic Degradation of NOx Gas and Methyl Orange Dye

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

doi:10.1155/2020/4756952

SiO₂-TiO₂ Films Supported on Ignimbrite by Spray Coating for the Photocatalytic Degradation of NO_x Gas and Methyl Orange Dye

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

Departamento Académico de Ingeniería de Materiales

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1 Scopus citations

Abstract

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, NO_x gas degradation was studied. The obtained results evidenced that the SiO₂ and TiO₂ coating improved the photocatalytic activity of ignimbrite.

Original language	English
Article number	4756952
Journal	International Journal of Photoenergy
Volume	2020
DOIs	https://doi.org/10.1155/2020/4756952
State	Published - 2020

Bibliographical note

Funding Information:
This work was funded by the Universidad Nacional de San Agust?n de Arequipa, with the topic: "Evaluaci?n de Materiales Fotocataliticos y sus Aplicaciones en la Restauracion y Mantenimiento del Patrimonio Cultural de la Ciudad de Arequipa" (No. Contrato IBA 0021-2016) and the collaboration of Eva Jimenez Relinque for her technical assistance in the analysis of NOx degradation of the Institute of Building Sciences E. Torroja-Madrid. P.G.R.A and J.M.R.R wants to thank the project 32-2019-FONDECYT-BM-INC.INV.

Publisher Copyright:
© 2020 Daily Maria Magdalena Gallegos Florez et al.

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Florez, D. M. M. G., Guzman Ale, R. B., Idme, A. F. H., Lazo Alarcon, L. A., Apaza Huallpa, E., Castro, Y., Apestegui, P. G. R., & Rodriguez Rodriguez, J. M. (2020). SiO₂-TiO₂ Films Supported on Ignimbrite by Spray Coating for the Photocatalytic Degradation of NO_x Gas and Methyl Orange Dye. International Journal of Photoenergy, 2020, [4756952]. https://doi.org/10.1155/2020/4756952

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title = "SiO2-TiO2 Films Supported on Ignimbrite by Spray Coating for the Photocatalytic Degradation of NOx Gas and Methyl Orange Dye",

abstract = "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.",

author = "Florez, {Daily Maria Magdalena Gallegos} and {Guzman Ale}, {Rivalino Benicio} and Idme, {Albeniz Ferdinand Huaracallo} and {Lazo Alarcon}, {Luis Antonio} and {Apaza Huallpa}, Edgar and Yolanda Castro and Apestegui, {Pierre Giovanny Ramos} and {Rodriguez Rodriguez}, {Juan Martin}",

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year = "2020",

doi = "10.1155/2020/4756952",

language = "Ingl{\'e}s",

volume = "2020",

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SiO₂-TiO₂ Films Supported on Ignimbrite by Spray Coating for the Photocatalytic Degradation of NO_x Gas and Methyl Orange Dye. / Florez, Daily Maria Magdalena Gallegos; Guzman Ale, Rivalino Benicio; Idme, Albeniz Ferdinand Huaracallo et al.

In: International Journal of Photoenergy, Vol. 2020, 4756952, 2020.

Research output: Contribution to journal › Article › peer-review

TY - JOUR

T1 - SiO2-TiO2 Films Supported on Ignimbrite by Spray Coating for the Photocatalytic Degradation of NOx Gas and Methyl Orange Dye

AU - Florez, Daily Maria Magdalena Gallegos

AU - Guzman Ale, Rivalino Benicio

AU - Idme, Albeniz Ferdinand Huaracallo

AU - Lazo Alarcon, Luis Antonio

AU - Apaza Huallpa, Edgar

AU - Castro, Yolanda

AU - Apestegui, Pierre Giovanny Ramos

AU - Rodriguez Rodriguez, Juan Martin

PY - 2020

Y1 - 2020

N2 - 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.

AB - 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.

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DO - 10.1155/2020/4756952

M3 - Artículo

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JO - International Journal of Photoenergy

JF - International Journal of Photoenergy

SN - 1110-662X

M1 - 4756952

ER -

SiO₂-TiO₂ Films Supported on Ignimbrite by Spray Coating for the Photocatalytic Degradation of NO_x Gas and Methyl Orange Dye

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