Published January 2012 | Version v1
Journal article Metadata-only

The characteristics and mechanism of Co(II) removal from aqueous solution by a novel xanthate-modified magnetic chitosan

Creators

  • 1. Laboratory of Environmental Technology, INET, Tsinghua University, Beijing 100084 (China)
  • 2. Beijing Key Laboratory of Fine Ceramics, Tsinghua University, Beijing 100084 (China)

Description

Highlights: ► Xanthate-modified magnetic chitosan (XMCS) was prepared, characterized and applied for Co(II) removal from aqueous solution. ► The introduction of thiol group on chitosan greatly increased the sorption capacity for Co(II). ► The maximum sorption capacity was 18.5 mg/g and 2.98 mg/g, respectively for XMCS and MCS. ► The mechanism of Co(II) removal was tentatively proposed through FTIR and XPS analysis. - Abstract: A novel xanthate-modified magnetic chitosan (XMCS) was prepared, characterized and applied for Co(II) removal from aqueous solution, and compared with magnetic chitosan (MCS). The characteristics and mechanism of Co(II) sorption was investigated. The experimental results showed that the introduction of thiol group on magnetic chitosan greatly increased the adsorption capacity for Co(II). The kinetics of Co(II) sorption could be described by pseudo second-order equation, and the adsorption isotherm followed the Langmuir model for both MCS and XMCS. The maximum adsorption capacity was found to be 18.5 mg/g and 2.98 mg/g, respectively from the Langmuir isotherm for XMCS and MCS. The mechanism of Co(II) adsorption onto XMCS was tentatively proposed through FTIR and XPS analysis.

Availability note (English)

Available from http://dx.doi.org/10.1016/j.nucengdes.2011.11.004

Additional details

Identifiers

DOI
10.1016/j.nucengdes.2011.11.004;
PII
S0029-5493(11)00977-0;

Publishing Information

Journal Title
Nuclear Engineering and Design
Journal Volume
242
Journal Page Range
p. 452-457
ISSN
0029-5493
CODEN
NEDEAU

INIS

Country of Publication
Netherlands
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
43074146
Subject category
S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
Descriptors DEI
ADSORPTION; ADSORPTION ISOTHERMS; AMINO ACIDS; AQUEOUS SOLUTIONS; COBALT; FOURIER TRANSFORM SPECTROMETERS; INFRARED SPECTRA; OLIGOSACCHARIDES; REACTION KINETICS; THIOLS; X-RAY PHOTOELECTRON SPECTROSCOPY
Descriptors DEC
CARBOHYDRATES; CARBOXYLIC ACIDS; DISPERSIONS; ELECTRON SPECTROSCOPY; ELEMENTS; HOMOGENEOUS MIXTURES; ISOTHERMS; KINETICS; MEASURING INSTRUMENTS; METALS; MIXTURES; ORGANIC ACIDS; ORGANIC COMPOUNDS; ORGANIC SULFUR COMPOUNDS; PHOTOELECTRON SPECTROSCOPY; SACCHARIDES; SOLUTIONS; SORPTION; SPECTRA; SPECTROMETERS; SPECTROSCOPY; TRANSITION ELEMENTS

Optional Information

Copyright
Copyright (c) 2011 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.