Photocatalytic Lime Render for Indoor and Outdoor Air Quality Improvement
Author/s
Ibáñez Gómez, José Antonio; Giampiccolo, Andrea; Tobaldi, David Maria; Mair, Sabine; da Silva, Carla Forbela; [et al.]Date
2021-02-25Keywords
Photocatalytic
TiO2 nanoparticles
UV and visible light
Lime render
Air purification
NOx
Formaldehyde
Abstract
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®) 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.
Type
article