Prof. Eng. Giuseppe Marcì obtained his PhD in Chemical Engineering at the University of Palermo. The scientific activity of Prof. Eng. G. Marcì has been mainly focused in the field of heterogeneous photocatalysis with various topics. In particular he is mainly interested in the preparation, characterization, and photocatalytic activity of various kinds of photocatalysts. Prof. Eng. Marcì is a co-author of 106 scientific papers published in national and international journals, 1 patent, and 200 papers in proceedings of national and international congress.