Determination of the mechanism of sorption of Cu2+ ions to hydrolyzed fibroin

  • Authors

    2022-04-05
    https://doi.org/10.14419/ijac.v10i1.31998
  • Hydrolyzed fibroin (“HF”), sorption, IR spectroscopy, silk, coordinate bond

  • We were able to obtain hydrolyzed fibroin with sorbing properties from fibrous silk waste. We determined the mechanism of sorption of Cu2+ ions into hydrolyzed fibroin using the Dubinin-Radushkevich isotherm. Physical sorption of Cu2+ ions to hydrolyzed fibroin has been shown to be predominant. However, it has been observed that the colour of hydrolyzed fibroin, which sorbs Cu2+ ions, changes to yellow over time. Analysis of the yellowed sample by IR spectroscopy showed that Cu2+ ions formed a coordinate bond with the hydrolyzed fibroin.

     

     

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    Eshchanov, K. (2022). Determination of the mechanism of sorption of Cu2+ ions to hydrolyzed fibroin. International Journal of Advanced Chemistry, 10(1), 5-8. https://doi.org/10.14419/ijac.v10i1.31998