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Preparation and adsorption properties of metal ions of crosslinked chitosan azacrown ethers
Author(s) -
Yang Zhikuan,
Wang Yuting,
Tang Yurong
Publication year - 1999
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/(sici)1097-4628(19991220)74:13<3053::aid-app7>3.0.co;2-6
Subject(s) - chitosan , adsorption , selectivity , polymer chemistry , chemistry , ether , metal ions in aqueous solution , fourier transform infrared spectroscopy , metal , nuclear chemistry , chemical engineering , organic chemistry , catalysis , engineering
The novel azacrown ether chitosan derivatives (CCAE‐I, CCAE‐II) were prepared by reaction between crosslinked chitosan with epoxy‐activated azacrown ethers. Their structures were confirmed by elemental FTIR spectra analysis and X‐ray diffraction analysis. The adsorption and selectivity properties of the crosslinked chitosan azacrown ethers for Pb 2+ , Cu 2+ , Cr 3+ , Cd 2+ , and Hg 2+ were also investigated. The experimental results showed that they have high adsorption capacity for Cu 2+ , Cd 2+ , and Hg 2+ . The adsorption capacity of CCAE‐II is higher than CCAE‐I for Cd 2+ and Hg 2+ . The selectivity properties of CCAE are better than chitosan and crosslinked chitosan. © 1999 John Wiley & Sons, Inc. J Appl Polym Sci 74: 3053–3058, 1999