Why no characteristic peak is shown for iron zinc core shell ?however iron Nps shows uv peak at 235nm but Fe-Zn shows no peak?

28 February 2022 0 8K Report

I am working on biogenic Fe-Zn core shell nanoparticles. Fe nps were synthesize successfully and show uv peak at 231nm. But when I synthesized Fe Zn core shell there was no peak. Peak sudden fall after 231nm. .what will be the reason.. I have tried many times by changing temp, ph time..but didn't get any chatcteristic peak.. uv file is attach below.plz need guidance.

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