A Review on the Use of Titanium Dioxide in Self-cleaning Technology Applied in Building

Document Type : Original Article

Authors

1 JazanUniversity

2 jazanuniversity

Abstract

 Buildings are exposed to various types of organic materials ranging from bird
droppings to vehicle emissions where the combustion of fuel continuously makes
buildings dirty and also pollute the air we breathe. Buildings are now able to clean
themselves and the air around them. The main idea for self-cleaning technology is to
make the surface superhydrophilic. On the superhydrophilic surface, the water
spreads on it completely forming a very thin layer of water. As the layer of water
flows off the surface, it flushes out any contaminants. Photocatalytic self-cleaning
coatings are used for building façade. Titanium-dioxide (TiO
2) metal coating is
applied on building walls and glass windows, which helps them clean themselves.
Because of special properties of Titanium dioxide nano particles, it can be used to
realize transparent self-cleaning coatings. There are many researches which are
focused on the using of Titanium dioxide as a self-cleaning coating for sustainable
buildings. In this paper a review on the use of Titanium dioxide coating technology
and the methods of applying it, is presented to throw light on this field and feasibility
of using this technology in Saudi Arabia country .

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