Green Synthesis Of Titanium Dioxide Nanoparticles(TiO2)

Synthesis of chemical compounds using materials which are compatible with environment، non-toxic and safe، is one of the principles of green chemistry. In this paper، all principles of green chemistry with two new methods for green synthesis of titanium dioxide nanoparticles have collected. Titanium dioxide is a photo catalyst which has various applications especially in green chemistry. This paper is about synthesis of TiO nanoparticles first by using Nyctanthes Arbor-Tristis leaves extract and then by a bacteria called Planomicrobium sp.. Then the size and morphology of the synthesized nanoparticles by two methods are compared by their scanning electron microscopic (SEM) images.