Abstract
The proposed project aims to continue the research project FAPESP/Process 2013/06822-2 entitled "Study of the photocatalytic activity of nanoparticles (NPs) of ZnO compared to TiO2 applied on external surfaces of cementitious building." TiO2 particles are known to be effective for the purposes of self-cleaning external surfaces of buildings by incidence of ultraviolet radiation. This proc…