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Amine Functionalized Electrospun Cellulose Nanofibers for Fluoride Adsorption from Drinking Water

  • Ramya AragaEmail author
  • Chandra S. Sharma
Original Paper
  • 7 Downloads

Abstract

In this study, we synthesized amine functionalized cellulose nanofiber based adsorbent for effective removal of dissolved fluoride ions from groundwater samples. Cellulose acetate was electrospun into nanofibers followed by deacetylation to yield cellulose nanofibers which were then treated with ethylenediamine to prepare amine functionalized cellulose fabric to be used as an adsorbent. As- synthesized adsorbent was first characterized by scanning electron microscopy and Fourier transform infrared spectroscopy for physiochemical characteristics. Fluoride adsorption studies were then carried out under batch mode to study the influence of various parameters on adsorption process. Amine functionalized cellulose nanofibrous mat was found to be effective with high adsorption efficiency for removal of fluoride ions from aqueous solution, even at low fluoride concentrations (< 5 mg L−1). Adsorption mechanism of fluoride onto prepared cellulose nanofibers based adsorbent was explained from the studies of isotherms, kinetic and thermodynamic parameters. Field studies conducted using this amine functionalized cellulose nanofibrous mat revealed the suitability and effectiveness of adsorbent for fluoride removal from contaminated groundwater.

Keywords

Cellulose acetate Amine functionalization Fluoride Adsorption Electrospinning 

Notes

Acknowledgements

The authors gratefully acknowledge Indian Institute of Technology, Hyderabad for providing necessary research facilities. CSS acknowledge DST INSPIRE Faculty research Grant for partial financial support.

Author Contributions

CSS and RA designed the work while RA performed all the experiments. All authors analyzed the data and prepared the manuscript.

Compliance with Ethical Standards

Conflict of interest

The authors declare that they have no conflict of interest.

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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2019

Authors and Affiliations

  1. 1.Creative & Advanced Research Based On Nanomaterials (CARBON) Laboratory, Department of Chemical EngineeringIndian Institute of Technology HyderabadKandiIndia

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