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Investigation on Parameters Affecting the Effectiveness of Photocatalytic Functional Coatings to Degrade NO: TiO2 Amount on Surface, Illumination, and Substrate Roughness
Joint Authors
Hot, J.
Topalov, J.
Ringot, E.
Bertron, A.
Source
International Journal of Photoenergy
Issue
Vol. 2017, Issue 2017 (31 Dec. 2017), pp.1-14, 14 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2017-09-24
Country of Publication
Egypt
No. of Pages
14
Main Subjects
Abstract EN
This paper deals with the degradation of NO by photocatalytic oxidation using TiO2-based coatings.
Tests are conducted at a laboratory scale through an experimental setup inspired from ISO 22197-1 standard.
Various parameters are explored to evaluate their influence on photocatalysis efficiency: TiO2 dry matter content applied to the surface, nature of the substrate, and illumination conditions (UV and visible light).
This article points out the different behaviors between three kinds of substrates which are common building materials: normalized mortar, denser mortar, and commercial wood.
The illumination conditions are of great importance in the photocatalytic process with experiments under UV light showing the best results.
However, a significant decrease in NO concentration under visible light is also observed provided that the TiO2 dry matter content on the surface is high enough.
The nature of the substrate plays an important role in the photocatalytic activity with rougher substrates being more efficient to degrade NO.
However, limiting the roughness of the substrate seems to be of utmost interest to obtain the highest exposed surface area and thus the optimal photocatalytic efficiency.
A higher roughness promotes the surface contact between TiO2 and NO but does not necessarily increase the photochemical oxidation.
American Psychological Association (APA)
Hot, J.& Topalov, J.& Ringot, E.& Bertron, A.. 2017. Investigation on Parameters Affecting the Effectiveness of Photocatalytic Functional Coatings to Degrade NO: TiO2 Amount on Surface, Illumination, and Substrate Roughness. International Journal of Photoenergy،Vol. 2017, no. 2017, pp.1-14.
https://search.emarefa.net/detail/BIM-1168311
Modern Language Association (MLA)
Hot, J.…[et al.]. Investigation on Parameters Affecting the Effectiveness of Photocatalytic Functional Coatings to Degrade NO: TiO2 Amount on Surface, Illumination, and Substrate Roughness. International Journal of Photoenergy No. 2017 (2017), pp.1-14.
https://search.emarefa.net/detail/BIM-1168311
American Medical Association (AMA)
Hot, J.& Topalov, J.& Ringot, E.& Bertron, A.. Investigation on Parameters Affecting the Effectiveness of Photocatalytic Functional Coatings to Degrade NO: TiO2 Amount on Surface, Illumination, and Substrate Roughness. International Journal of Photoenergy. 2017. Vol. 2017, no. 2017, pp.1-14.
https://search.emarefa.net/detail/BIM-1168311
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1168311