Spectroscopic Studies on PVA-Chitosan Blend with Potassium Nitrate as Ionic Crosslinker for Biomedical Application

Firdos Jahan¹ , R.D. Mathad²

Section:Research Paper, Product Type: Isroset-Journal
Vol.7 , Issue.2 , pp.62-65, Apr-2019

CrossRef-DOI:   https://doi.org/10.26438/ijsrpas/v7i2.6265

Online published on Apr 30, 2019

Copyright © Firdos Jahan, R.D. Mathad . This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
 

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Abstract :
The present research aimed to study the energy band gaps of Chitosan (CS) -Polyvinyl Alcohol (PVA) blend films crosslinked with Potassium nitrate (KNO3). The morphology of the film surface and blending were investigated by Scanning Electron Microscopy (SEM). The UV-visible spectroscopic studies were done by Parking Elmer UV/Vis Spectrometer Lamda-35. The increase in the absorption intensity and decrease in the optical band gap may be due to a larger absorption increment associated with the charge transfer transition and a similarly Optical conductivity of samples increases due to the decrease in optical band gap and hence promises to be a good material for the biomedical and battery applications.

Key-Words / Index Term :
Chitosan-Polyvinyl Alcohol blend, Potassium nitrate, absorption maxima, direct and indirect energy band gap

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