Photo Catalytic Degradation of Concrete Containing Titanium Dioxide Nanoparticles—A Review

Concrete is one of the key component in the construction field. The importance of concrete is because of its strength and long lasting properties. The incorporation of nano materials in concrete helps to improve the characteristics of conventional concrete. Titanium dioxide (TiO2) is one such nanomaterial that helps to increase the performance of concrete by enhancing self-cleaning, anti-microbial and anti-bacterial activities. This paper briefly explains about the reaction of titanium dioxide nano particle N-TiO2 on cement materials which in turn changes the mechanical and physical properties of concrete against chemical, climatic changes and abrasion. The review presented here includes the features of titanium dioxide nano particles basically, its dosage in concrete, its impact on concrete on both fresh and hardened properties, photo catalytic effect and anti-microbial. This review explores the photo catalytic degradation of concrete enhanced with N-TiO2, which presents a promising method for improving the durability and sustainability of concrete structures. The addition of N-TiO2, recognized for its photo catalytic properties when exposed to UV light, has demonstrated potential in tackling various environmental and structural challenges associated with concrete. The paper provides a detailed analysis of the mechanisms involved in the photo catalytic process, the way N-TiO2 particles aid in breaking down pollutants (including organic compounds, NOx, and CO₂), and its contributions to self-cleaning, antimicrobial functions, and the degradation of harmful pollutants.