Material Research School, Nuclear Science and Technology Institute, Karaj, I.R. IRAN
Incorporation of copper species into silica matrix was performed by the sol-gel method. Copper ions and copper particles were doped using two different copper sources; Cu(NO3)2.3H2O and copper particles chemically synthesized.The particles of copper metallic, cuprous and cupric oxide were prepared and the synthesis and characterizations of copper species were compared together. On the other hand, their structures were analyzed by furrier transformation infra red spectroscopy and X-ray diffraction at 200, 400 and 600°C. Three main region contain Rocking (R), Bending (B ) and Stretching (S) were recognized on their vibration structure using furrier transformation infra red spectra. Also, the scanning electron micrographs and chemical analysis of Cu and CuO/SiO2 were performed by energy dispersive X-ray spectroscopy. Average sizes of particles were determinated about 50 nm for CuO/SiO2 and were analyzed about 200 nm by transmission electron microscopy for the particles of Cu/SiO2.