We used sol-gel method to synthesize Cu substitued Ni-Cd ferrite nanoparticles. XRD patterns confirmed the single-phase spinel structure of the materials. In the FTIR spectra we got absorption bands near 665 cm-1 and 2350 cm-1, but no peaks found near 435 cm-1. As we know in ferrrites research, nu1 band near 665cm-1 corresponds to octahedral sites and nu2 band near 435 cm-1 corresponds to Octahedral complexes and their presences confirm the cubic spinel structure.
But since in our FTIR spectra, we have not observed peak near 435 cm-1 (but absorption bands found near 665 cm-1 and 2350 cm-1, ), how can we explain the FTIR results? Can we confirm the single-phase cubic structure without nu2 band?
Thanks in advance.
Dear Md Arifuzzaman, since the absorption in question is located in the fingerprint domain, you have to find the corresponding possible deformations related to your compound in that region. It is somehow complicated because of the interferences, but previous works may guide you. My Regards
Dear Md Arifuzzaman
It looks like the background spectrum, not ferrite. The peak at 2350 cm-1 originates from CO2. You can repeat the experiment. Please measure first the spectrum of air and then for the sample.
Maybe my article will help you with the analysis of the ferrite spectrum:
Article Structure and optical properties of Fe 3 O 4 nanoparticles s...
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