Synthesis of SnO2/ZnO nanocomposites was counducted by doping semiconductor SnO2 by Zn metal. Composites, were made with mass ratio of SnO2 to ZnO (1:0.5), (1:1) and (1:1.5), were characterized used XRD, SEM-EDS and UV-Vis DRS instruments. The XRD characterization results of the SnO2/ZnO composite showed the formation of a typical peak at 2θ around 26o. Energy band gap value of the SnO2/ZnO co…