Jump to main content
Jump to site search

Issue 41, 2015
Previous Article Next Article

Synthesis of magnetic graphene oxide-containing nanocomposite hydrogels for adsorption of crystal violet from aqueous solution

Author affiliations

Abstract

Magnetic nanocomposite hydrogels containing different amounts of graphene oxide were synthesized and characterized by FTIR, XRD, TGA, SEM, TEM, VSM and UV-vis spectroscopy. The prepared hydrogels were used as adsorbents for removal of a cationic dye, crystal violet, from water. The kinetics and isotherm of adsorption and the effect of different experimental conditions such as graphene oxide content, pH of the solution, contact time, adsorbent dosage and initial dye concentration on adsorption capacity were then investigated. Parameters related to kinetics and isotherm models were calculated and discussed. It was found that adsorption is well-described by pseudo-second-order kinetics and Langmuir isotherm models, respectively. The synthesized adsorbents showed high efficiency in removal of crystal violet and a very high adsorption capacity was obtained (769.23 mg g−1). No significant loss of removal efficiency was observed even after five cycles of adsorption.

Graphical abstract: Synthesis of magnetic graphene oxide-containing nanocomposite hydrogels for adsorption of crystal violet from aqueous solution

Back to tab navigation

Supplementary files

Article information


Submitted
26 Dec 2014
Accepted
10 Mar 2015
First published
16 Mar 2015

RSC Adv., 2015,5, 32263-32271
Article type
Paper
Author version available

Synthesis of magnetic graphene oxide-containing nanocomposite hydrogels for adsorption of crystal violet from aqueous solution

A. Pourjavadi, M. Nazari and S. H. Hosseini, RSC Adv., 2015, 5, 32263
DOI: 10.1039/C4RA17103A

Social activity

Search articles by author

Spotlight

Advertisements