Photocatalytic Lime Render for Indoor and Outdoor Air Quality Improvement


This article reports a novel photocatalytic lime render for indoor and outdoor air quality improvement that is composed of a lime binder and doped TiO2 (KRONOClean 7000(R)) nanoparticles. These nanoparticles were distributed throughout the bulk of the finishing render, instead of as a thin coating, thus ensuring the durability of the photocatalytic properties upon superficial damage. The physical properties of these renders were not affected by the addition of nanoparticles except in the case of surface area, which increased significantly. In terms of their photocatalytic activity, these novel lime renders were shown to degrade up to 12% NOx under UV light and up to 11% formaldehyde under visible light.




Chemistry, Physical


Gomez, JAI; Giampiccolo, A; Tobaldi, DM; Mair, S; da Silva, CF; Barrasa, MC; Maskell, D; Ansell, MP; Kurchania, R; Mayer, F; Labrincha, JA; de Miguel, YR; Ball, RJ

nossos autores


This research was funded by the European Union's Seventh Framework Programme for research, technological development, and demonstration under the Grant Agreement No. 609234 related to the ECO-SEE project: Eco-innovative, Safe and Energy Efficient wall panels and materials for a healthier indoor environment ( work was partly developed within the scope of the project CICECO-Aveiro Institute of Materials, UIDB/50011/2020 & UIDP/50011/2020, financed by national funds through the FCT/MEC and when appropriate co-financed by FEDER under the PT2020 Partnership Agreement. David Maria Tobaldi is overly grateful to Portuguese national funds (OE), through FCT, I.P., in the scope of the framework contract foreseen in the numbers 4, 5 and 6 of the article 23, of the Decree-Law 57/2016, of 29 August, changed by Law 57/2017, of 19 July.

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