Please use this identifier to cite or link to this item:
https://hdl.handle.net/10216/103101
Author(s): | Joana Ângelo Luísa Andrade Adélio Mendes |
Title: | Highly active photocatalytic paint for NOx abatement under real-outdoor conditions |
Issue Date: | 2014 |
Abstract: | In this work the photocatalytic activity of paints incorporating commercial titanium dioxide for outdoor nitrogen oxide (NO) photoabatement is assessed. The paint acts as a 3D support of the photocatalyst and thus allows a larger amount of TiO2 nanoparticles to absorb light and to contact with pollutants, when compared with a 2D photocatalytic surface. NO conversion and selectivity towards nitrites and nitrates were determined according to the standard ISO 22197-1:2007 (E). Paint coatings were formulated and tested under laboratory and outdoor conditions. The best paint formulation incorporates CristalACTiVTM PC500 photocatalyst from Cristal and calcium carbonate extender, presenting a NO conversion of ca. 70% and a selectivity of ca. 40% under laboratory conditions. The same photocatalyst but characterized in the form of an optically thick film of compressed powder presented ca. 95% and 45% of conversion and selectivity, respectively. Under the real-outdoor conditions, the best performing paint showed a NO conversion of about 95%. |
Subject: | Engenharia química, Engenharia química Chemical engineering, Chemical engineering |
Scientific areas: | Ciências da engenharia e tecnologias::Engenharia química Engineering and technology::Chemical engineering |
URI: | https://hdl.handle.net/10216/103101 |
Related Information: | info:eu-repo/grantAgreement/FCT - Fundação para a Ciência e a Tecnologia/Projectos de I&DT em Todos os Domínios Científicos/PTDC/EQU-EQU/115614/2009/Síntese e caraterização de novos fotocatalisadores compósitos de TiO2-grafeno: aplicação no abatimento focotacalítico de NOx e fotoeletrólise da água para produção de hidrogénio/PTDC/EQU-EQU/115614/2009 info:eu-repo/grantAgreement/COMISSÃO EUROPEIA/7.º Programa-Quadro de IDT/321315/Building Integrated Dye Sensitized Solar Cells/BI-DSC info:eu-repo/grantAgreement/FCT - Fundação para a Ciência e a Tecnologia/Acordo de Cooperação Portugal / Brasil (CAPES)/FCT/CAPES 4.4.1.00.01/2012/Desenvolvimento de caraterização de fotocatalisadores compósitos de dióxido de titânio-grafeno/FCT/CAPES 4.4.1.00.01/2012 |
Document Type: | Artigo em Revista Científica Internacional |
Rights: | restrictedAccess |
Appears in Collections: | FEUP - Artigo em Revista Científica Internacional |
Files in This Item:
File | Description | Size | Format | |
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105761.pdf Restricted Access | Artigo original publicado | 2.47 MB | Adobe PDF | Request a copy from the Author(s) |
105761.1.pdf | Post print version | 1.23 MB | Adobe PDF | View/Open |
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