Characterization of Cu and ZnO powders embedded in a SiO2 matrix
Abstract
In this work, copper and zinc oxide powders embedded in a silicon dioxide matrix were characterized: The molar ratio of the ZnO and Cu powders was 2:1. The antibacterial properties of ZnO and Cu and the semiconductor properties of ZnO improve the inhibition of microorganisms by oxidative stress and cell lysis; additionally, the transformation of undesirable volatile compounds by photocatalysis is favored. Cu particles were obtained by chemical reduction and ZnO nanoparticles by hydrothermal technique. Infrared spectroscopy revealed absorption bands at 510 cm-1, 1100 cm-1 corresponding to the Zn-O and Si-O bonds, respectively. By X-ray diffraction, the presence of the Wurzite phase of ZnO is observed and the diffraction patterns of copper Cu show the characteristic peaks of the FCC structure.
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References
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