Photocatalytic lime render for indoor and outdoor air quality improvement

José Antonio Ibañez Gomez, Andrea Giampiccolo, David Tobaldi, Sabine Mair, Carla Florbela Ferreira Pinto Da Silva, Maria Casado Barrasa, Dan Maskell, Martin Ansell, Rajnish Kurchania, Florian Mayer , João Labrincha, Yolanda De Miguel, Richard Ball

Research output: Contribution to journalArticlepeer-review


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.
Original languageEnglish
Article number296
Issue number3
Publication statusPublished - 25 Feb 2021

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