Progress of functionalized TiO2-based nanomaterials in the construction industry: A comprehensive review
Marcin Janczarek, Łukasz Kłapiszewski, Patryk Jędrzejczak, Izabela Klapiszewska, Agnieszka Ślosarczyk, Teofil Jesionowski
Abstract
The intensive development of construction in recent years and the increasing demands on the durability and service life of buildings have increasingly caused construction scientists to pay attention to new material solutions based on nanotechnology. One of these solutions is the use of titanium dioxide, with its photocatalytic and antibacterial properties, in building materials. Although this solution has been known for decades, there are few articles that review the latest trends in this area. Compared with other literature studies, this article pays particular attention to the possibility of modifying nanotitania to expand its photocatalytic properties, and analyzes the effects of these alterations on the self-cleaning, air-depolluting and antibacterial properties of building materials, mainly cement-based composites. It is complemented by a section dedicated to the mechanical and durability properties of pristine and functionalized TiO2-modified building materials, taking into account dispersion methods, rheological and mechanical parameters, as well as resistance to external factors.