The uranium recovery from aqueous solutions using amidoxime modified cellulose derivatives. I. Preparation, characterization and amidoxime conversion of radiation grafted ethyl cellulose-acrylonitrile copolymers


Basarir S. S. , Bayramgil N. P.

RADIOCHIMICA ACTA, vol.100, no.12, pp.893-899, 2012 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 100 Issue: 12
  • Publication Date: 2012
  • Doi Number: 10.1524/ract.2012.1983
  • Journal Name: RADIOCHIMICA ACTA
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.893-899
  • Hacettepe University Affiliated: Yes

Abstract

Graft copolymers were prepared by Co-60-gamma irradiation of binary mixture of ethyl cellulose (EC) and acrylonitrile (AN). Conversion %-dose graphs were obtained, and 95% copolymer yield has been reached at around 8 kGy dose. Conversion of nitrile groups to amidoxime (AO) were achieved by aqueous solutions of NH2OH center dot HCI-NaOH at 50 degrees C. The amidoxime conversion was followed by using FTIR spectrophotometer and determined as percentage. After 72 h period, nearly 100% amidoxime conversion was provided. The structures of EC-g-AN and EC-g-AO were characterized by FTLR/ATR, TGA, and SEM methods.