Characterization of Interaction Between Humic Acids and Buckminsterfullerene Using Flourescene Spectroscopy

Authors

  • Linda Ansone University of Latvia
  • Maris Klavins University of Latvia

DOI:

https://doi.org/10.15626/Eco-Tech.2010.099

Keywords:

Humic acid, Fluorescence spectroscopy, Fullerene C60, Binding

Abstract

The interaction between buckminsterfullerene C60 and humic acids (HA) of different origins was compared using fluorescence spectroscopy as a function of pH, humic acid concentration, ionic strength. Binding constants between fullerene and humic acids were calculated. It can be suggested that the complexation was driven by hydrophobic interactions depending on the properties of the interacting compounds. Hydrophobic interaction model as indicated by linear Stern-Volmer plots and high Kd values is characterizing the interaction between buckminsterfullerene C60 and humic acids The results of this study support the development of an understanding of the fate of nanomaterials in the environment as well as the development of analytical methods for nanomaterials in waters and wastewater treatment approaches.

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Published

2017-08-09