Self-Cleaning Coatings and Surfaces of Modern Building Materials for the Removal of Some Air Pollutants

Abstract

Air quality is one of the most important problems of the modern world, as it determines human health and changes occurring in other elements of nature, including climate change. For this reason, actions are taken to reduce the amount of harmful substances in the air. One such action is the use of building materials with special properties achieved by the application of self-cleaning coatings and photocatalytic additives. This article presents achievements in the field of additives and modifiers for building materials, whose task is to improve air quality. Concrete, cement, paints, and facade coatings modified based on the achievements of nanotechnology have been analyzed in terms of new properties and the possibility of their application in the area of modern environmental requirements. Both positive aspects and doubts were described in the scope of the effective reduction of the amount of gases such as VOC, NOx, dust and microorganisms.

Heterophase Polymorph of TiO2 (Anatase, Rutile, Brookite, TiO2 (B)) for Efficient Photocatalyst: Fabrication and Activity

“…TiO 2 is the most effective and efficient semiconductor material, and has also been reported in the photoelectrical devices [ 14 , 15 ]. TiO 2 also has electronic and optical properties that can be utilized in the field of photocatalysts [ 16 ], self-cleaning materials [ 17 ], and solar cells [ 18 ].…”

Interactions of limonene and carvone on titanium dioxide surfaces

“…18,19 Rutile and anatase are the two main crystalline structures of TiO 2 ; rutile is the most stable TiO 2 phase whereas anatase is more photoactive. 20,21 TiO 2 -based self-cleaning materials, such as paint films, coated glasses, and tiles, are used both in indoors and outdoors on walls, floors, rooftops and facades. 22 In the state of California, self-cleaning ceramic TiO 2 titles are widely used in public places such as hospitals and restrooms.…”

“…Figure1(a)shows FTIR absorbance spectra of limonene adsorbed on TiO 2 as a function of varying pressure(3,6,11,20,31,42, 75 and 148 mTorr) at 297 ± 1 K under dry conditions (<1% RH). For these spectra, the clean TiO 2 surface prior to adsorption was used as the background spectrum and, in addition, gasphase contributions were subtracted from each of the spectra.…”

Synthesis and Use of Nano Particles for Enhancing the Self-Cleaning Effects in White-Cement

“…It not only increases the material cost of the concrete but can also improve its structural qualities, particularly its strength [11,35]. White Cement is also one of the extremely important building materials which can be utilized as a part of the development of structural excellence, inside and outside adornments of the buildings, for example, terrazzo tiles, wall surfaces and oor materials [8,18,20,25,27,28,36].…”