Synthesis, characterization and Cr(VI) uptake study of polyaniline coated chitin

Rathinam Karthik, Sankaran Meenakshi

Research output: Contribution to journalArticlepeer-review

50 Scopus citations

Abstract

The present work describes the synthesis, characterization of polyaniline coated chitin (PCC) and its application as an adsorbent of the removal of Cr(VI) ions from aqueous solution. The synthesized PCC was characterized using FTIR, XRD, SEM-EDX, BET, TGA, and DSC. The batch adsorption system was used to optimize the various parameters for the removal of Cr(VI) ions from aqueous solution by PCC. The equilibrium data obtained at optimized conditions were well described by Freundlich isotherm model than the Langmuir isotherm model. The values of δG0, δH0 and δS0 indicate the spontaneous and the endothermic nature of the adsorption process. The pseudo-second-order kinetic model fitted well to the kinetic data. The regeneration studies revealed that the Cr(VI) loaded PCC could be reused for three consecutive cycles.

Original languageEnglish
Pages (from-to)235-242
Number of pages8
JournalInternational Journal of Biological Macromolecules
Volume72
DOIs
StatePublished - 1 Jan 2015
Externally publishedYes

Keywords

  • Adsorption
  • Chitin
  • Polyaniline

ASJC Scopus subject areas

  • Structural Biology
  • Biochemistry
  • Molecular Biology
  • Economics and Econometrics
  • Energy (all)

Fingerprint

Dive into the research topics of 'Synthesis, characterization and Cr(VI) uptake study of polyaniline coated chitin'. Together they form a unique fingerprint.

Cite this