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New hydrogel containing sulfur compound prepared by γ irradiation and its application for metal recovery
Author(s) -
Nizam ElDin H. M. M.,
Ibrahim M. S.,
Mostafa M. M.
Publication year - 2000
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 - 10.1002/1097-4628(20000801)77:5<955::aid-app2>3.0.co;2-f
Subject(s) - thermogravimetric analysis , scanning electron microscope , metal , sulfur , polymerization , metal ions in aqueous solution , polymer chemistry , thermal decomposition , materials science , thermal analysis , elemental analysis , nuclear chemistry , proton nmr , irradiation , chemistry , thermal , inorganic chemistry , polymer , composite material , organic chemistry , metallurgy , physics , meteorology , nuclear physics
A new hydrogel that contains sulfur is prepared by radiation polymerization and its application for recovery of Hg 2+ , Pb 2+ , Cd 2+ , and Cu 2+ ions is discussed. The metal hydrogel complexes are isolated and characterized by using different spectroscopic techniques (UV‐visible, IR, NMR, and mass), thermal analysis (TGA and DSC) measurements, and SEM. Also, the mode of complexation is determined using IR and NMR spectroscopy. The scanning electron micrographs show that the hydrogel has a great ability to recover the metal ions in the following order: Hg 2+ > Cd 2+ > Pb 2+ > Cu 2+ . TGA thermograms are used to investigate the mechanism of thermal decomposition. © 2000 John Wiley & Sons, Inc. J Appl Polym Sci 77: 955–966, 2000