Developing Mechanism with Photo Reflective and Photocatalytic Properties for Cool Roofs by Using Tio2 Nanoparticles

Abstract

Cool roofs are a novel way to mitigating urban heat island effects and lowering building energy use. This work looks at the possible use of titanium dioxide (TiO2) nanoparticles as a crucial component in building cool roof systems with simultaneous photo-reflection and photocatalysis functions. The study aims to uncover the fundamental processes that influence the reflective and photocatalytic characteristics of TiO2 nanoparticles when they are mixed with roofing materials. Experiments were carried out with three different kinds of TiO2 nanoparticles, both with and without polyethylene glycol (PEG). X-ray diffractometry was used to characterize all sorts of newly created nanomaterials. The Brunauer-Emmet-Teller technique was used to calculate specific surface area after analyzing particle size distribution. SEM imaging was utilized to characterize the morphology of nanoparticles. To get the necessary photocatalytic surface, commercial ceramic roofing tiles were dip-coated. The TiO2 anatase samples had larger nanoparticle surface areas, presumably offering the best photocatalytic efficiency.