Application of the environmental dimension of sustainable development in the urban landscape preservation (to reduce urban air pollution

Abstract The general definition of sustainability in 1986, for the first time international Committee extenson environment sustainability as "The confrontation the needs of the present without compromising the resources of future generations to confortation present day needs." Sustainability goals summarized in three factors: Environmental, social, economic. Photocatalyst is called the group of catalysts that are active when exposed to light and Speeds of chemical reactions. In this paper, we study how to reduce air pollution by using a sequence of Photocatalyst in order to improve the environmental sustainability of the approach is discussed, the purpose of this paper is the use of optical catalysts in the building industry that actively thwart environmental pollution and as a nice decorative pattern is also used. Titanium Dioxide is photocatalyst presented in this paper that activated in the presence of ultraviolet light and reactive neutralizing toxic substances within the building and convert them into harmless substances، results show; this facade converts smoke particles into smaller particles with less chemical hazards, carbon dioxide and water, other advantages of This facade is potential respondents self-cleaning, anti-fog clogging, long life and cost. Keywords: , , , , urban landscape.