WALAILAK JOURNAL OF SCIENCE AND TECHNOLOGY

Volume 18, No. 07, Month APRIL, Year 2021, Pages -

Spectroscopy study of polyvinyl alcoholcarbon dots composite films

Permono Adi PUTRO, Nurfina YUDASARI, Isnaeni, Akhiruddin MADDU

Abstract Download PDF

The unique characteristic of carbon dots (C-dots), such as optical and electrical properties, have been integrated into polyvinyl alcohol (PVA) to realize composites with synergistic. In this work, C-dots have been synthesized from inner cassava peels using simple methods at low temperatures. The C-dots were added to PVA, which is influenced the characteristic based on spectroscopy. The complex formation between PVA and C-dots was investigated by FTIR spectroscopy. The C-dots contributed to UV-Vis spectroscopy characteristic of PVA/C-dots with the absence of a new peak of absorbance spectra. Besides, C-dots also supported the electrochemical impedance spectroscopy characteristic of PVA/C-dots, so the highest ionic conductivity is induced by the enhancement of amorphous PVA when the c-dots content is increased.

Keywords

Carbon dots, Ionic conductivity, Polyvinyl alcohol, Spectroscopy

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