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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/2510
Title: Adsorptive Removal of Hg(II) from Synthetic and Real Aqueous Solutions Using Modified Papaya Seed
Authors: Yadav S.K.
Singh D.K.
Sinha, Shishir N.
Published in: Journal of Dispersion Science and Technology
Abstract: The performance of chemically modified papaya seed (CMPS) adsorbent with carboxyl and amino groups has been studied. Adsorption experiments were performed with respect to the changes in initial pH of the solution, contact time, initial Hg(II) concentration, and CMPS dosage. Kinetic data were fitted to the pseudo-second-order model. The maximum adsorption capacity calculated by Langmuir model was 18.34 mg/g. CMPS was characterized by elemental analysis, Fourier transform infrared (FTIR) spectroscopy, and scanning electron microscopy. The results indicate that adsorption mechanism of CMPS involves ion exchange (2Na+/Hg2+) and carboxylic-group-dominated surface complexation. Regeneration study revealed that CMPS can be used successfully for four cycles with a small adsorption capacity loss (6.8%). © 2016, Copyright © Taylor & Francis Group, LLC.
Citation: Journal of Dispersion Science and Technology (2016), 37(11): 1613-1622
URI: https://doi.org/10.1080/01932691.2014.930713
http://repository.iitr.ac.in/handle/123456789/2510
Issue Date: 2016
Publisher: Taylor and Francis Inc.
Keywords: Chemical modification papaya seed
isotherm
kinetics
mercury adsorption
ISSN: 1932691
Author Scopus IDs: 55531253500
55387279500
7403739121
Author Affiliations: Yadav, S.K., Department of Chemistry, Analytical Research Laboratory, Harcourt Butler Technological Institute, Kanpur, Uttar Pradesh, India
Singh, D.K., Department of Chemistry, Analytical Research Laboratory, Harcourt Butler Technological Institute, Kanpur, Uttar Pradesh, India
Sinha, S., Department of Chemical Engineering, Indian Institute of Technology, Roorkee, Uttarakhand, India
Corresponding Author: Singh, D.K.; Analytical Research Laboratory, Department of Chemistry, Harcourt Butler Technological InstituteIndia; email: dhruvks123@rediffmail.com
Appears in Collections:Journal Publications [CH]

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