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Modified CMC.2. Novel carboxymethylcellulose-based poly (amidoxime) chelating resin with high metal sorbtion capacities [electronic resource]

Zohurian Mehr, M. J. (Mohammad Jalal) ; Sharif University of Technology

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  1. Type of Document: Article
  2. DOI: 10.1016/j.reactfunctpolym.2004.03.006
  3. Abstract:
  4. Carboxymethylcellulose sodium salt (CMC) was doubly modified to prepare a novel poly(acrylamidoxime) chelating resin. Acrylonitrile was firstly graft polymerized onto CMC using cerium ammonium nitrate as an initiator. The polyacrylonitrile (PAN) grafted CMC was then amidoximized via treatment with hydroxylamine to prepare the ion exchange resin. The sorption capacity of the resin towards bivalent metal ions was evaluated while varying the pH, the loading of the PAN and the initial metal ion concentration. The adsorption kinetics were investigated for the cupric ion. The chelating resin exhibited very high metal sorption capacity in comparison with either synthetic or polysaccharide-based resins and the sorption rate was also comparable. Therefore, the resin may be considered as a good candidate to develop as an efficient biopolymer-based chelating resin for water treatment
  5. Keywords:
  6. Carboxymethylcellulose ; Ion exchange ; Metal sorption ; Amidoxime ; Polysaccharide Graft polymerization ; Acrylonitrile
  7. Source: Reactive and Functional Polymers ; Volume 61, Issue 1, August 2004, Pages 23–31
  8. URL: http://www.sciencedirect.com/science/article/pii/S1381514804000859