Vliv vlhkosti prostředí na samočistící schopnosti povrchů stavebních materiálů s obsahem fotokatalyzátorů

Abstract

The aim of this bachelor's thesis is to investigate the influence of humidity on the self-cleaning properties of the surfaces of cement blocks covered with a layer of titanium dioxide, which is used as a photocatalyst. Nowadays, the problem of environmental pollution is becoming more and more relevant, and therefore the development of effective methods for the preparation of self-cleaning surfaces represents an important direction of research.

The theoretical part of the work is devoted to the basic aspects of photocatalysis and the mechanisms of self-cleaning surfaces when using titanium dioxide. Special attention is paid to photocatalysis, semiconductors and the efficiency of various photocatalysts. In this context, the physico-chemical processes that take place during the interaction of a given type of materials with various pollutants in humid environmental conditions were investigated.

The experiments of the practical part are aimed at identifying the optimal conditions for the functioning of titanium dioxide as a photocatalyst at different levels of humidity and temperature. Experimental data were analyzed to determine the relationships between humidity and the effectiveness of self-cleaning surfaces.

The results of this work can be used to optimize self-cleaning processes using photocatalysts based on titanium dioxide in real conditions. The research carried out has the potential to significantly improve the efficiency and applicability of similar technologies in the field of construction industry, environmental protection and thus support sustainable development.