期刊
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
卷 89, 期 -, 页码 1-11出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.ijbiomac.2016.04.050
关键词
Methyl violet; Adsorption; Gum xanthan; Nanocomposite hydrogel; Isotherms; Kinetics
资金
- National Research Foundation (NRF), South Africa
- University of Johannesburg, Department of Science and Technology
- Council for Scientific and Industrial Research, South Africa
This research paper reports the utilization of gum xanthan-grafted-polyacrylic acid and Fe3O4 magnetic nanoparticles based nanocomposite hydrogel (NCH) for the highly effective adsorption of methyl violet (MV) from aqueous solution. Synthesized NCH was characterized using various techniques, such as FTIR, XRD, SEM-EDS, TEM and BET. Adsorption behavior of NCH was studied for the adsorption of MV and it was found to remove 99% dye from the solution. Adsorption process followed Langmuir isotherm model (q(e) = 642 mg/g) and pseudo-second-order kinetics model. Thermodynamic studies suggested that the adsorption process was endothermic and spontaneous. Moreover, the adsorbent was successfully utilized for successive five cycles of adsorption-desorption. (C) 2016 Elsevier B.V. All rights reserved.
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