1. JCCT
  2. All Volumes and Issues
  3. Volume 15, Number 4, 2021
  4. Superhigh Adsorption of Cadmium(II) Ions onto Surface Modified Nano Zerovalent Iron Composite (CNS-nZVI): Characterization, Adsorption Kinetics and Isotherm Studies

Superhigh Adsorption of Cadmium(II) Ions onto Surface Modified Nano Zerovalent Iron Composite (CNS-nZVI): Characterization, Adsorption Kinetics and Isotherm Studies

JCCT.
2021;
Volume 15, Number 4
: pp. 457–464
https://doi.org/10.23939/chcht15.04.457
Authors:
  1. Prabu Deivasigamani
  2. Senthil Kumar Ponnusamy
  3. Sathish Sundararaman
  4. A. Suresh
1
Department of Chemical Engineering, Sathyabama Institute of Science and Technology
2
Department of Chemical Engineering, SSN College of Engineering
3
Department of Chemical Engineering, Sathyabama Institute of Science and Technology
4
Department of Chemical Engineering, Sathyabama Institute of Science and Technology

The efficiency of surface modified nanoscale zerovalent iron (nZVI) composite by cashew nut shell (CNS) was tested for the removal of cadmium ions from the aqueous solutions. 2 g/l CNS-nZVI was efficient for 98% removal. The adsorption capacity was 35.58 mg/g. The Freundlich isotherm (R2 = 0.9769) and the pseudo-second order adsorption kinetics data fitted well. This proved CNS-nZVI has a high removal efficiency for Cd(II) from aqueous solutions.

nanocomposite
cashew nut shell
adsorption
nZVI
isotherm
kinetics
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