Abstract
The aim of this study is to propose a continuity of the study of the photo catalytic activity of ZnO compared to n-TiO2P25 realized at FAPESP Process: 2013/06822-2, finished in 28.04.2016, after 30 months. It is intended to measure the photo catalytic activity of micro and nano particles of ZnO and TiO2, from different sources. Both particles were characterized by morphology (texture), ch…