WIT Press


Optimization Of Nickel Ions Removal From Aqueous Solutions By Chitosan-polyethylene Oxide Electrospun Nanofibers

Price

Free (open access)

Paper DOI

10.2495/WRM150331

Volume

196

Pages

12

Page Range

387 - 398

Published

2015

Size

1,381 kb

Author(s)

I. Lakhdhar, P. Mangin, B. Chabot

Abstract

Chitosan-polyethylene oxide (Cs/PEO) electrospun nanofibers were prepared by electrospinning process in order to remove nickel ions from aqueous solutions by a chelation mechanism. Response surface methodology (RSM) was used to optimize adsorption efficiency of nickel ions on Cs/PEO nanofibers. The combined effects of adsorption operating parameters, namely, the adsorbent dose, initial nickel ions concentration, temperature, and NaCl concentration, on adsorption efficiency were investigated using a central composite face-centered (CCF) design. Results showed that an optimal adsorption capacity of 64.4% was obtained under the following conditions: 75 mg of adsorbent dose, initial nickel concentration of 100 ppm, a temperature of 75°C, and a 1M NaCl concentration.

Keywords

water sustainability, water recycling, chitosan, electrospun nanofibers, nickel adsorption, experimental design