In this research, we have reviewed the recent investigations on the photocatalyst semiconductor in which titanium based on the surface mainly focuses on protecting the environment and human health. This titanium has been widely read and investigated in the past four centuries and it has been shown that in many ways we can benefit from it. Here we need a light energy source to activate the electronics in the semiconductor that then this light energy is converted into chemical energy because of its photochemistry, and that chemical energy is used in reaction chemical on the surface of the cover and electrons and halls have a major role in the chemical effect that eventually produces carbon oxide and water and cleanses the surface of the coating..