The removal of heavy metal ions from aqueous solutions by novel pH-sensitive hydrogels
U Yildiz, Omer Ferkan Kemik, B Hazer
article (Uluslararası, Hakemli) | Yazar(lar): U Yildiz, Omer Ferkan Kemik, B Hazer | Yıl: 2010 | Dergi/Kurum: JOURNAL OF HAZARDOUS MATERIALS | İndeks: WOS.SCI | DOI: 10.1016/j.jhazmat.2010.07.055 | Anahtar Kelimeler: Crosslinking, Hydrogel, Macroinimer, Heavy metal ions — Özet: Novel non-ionic hydrogels were synthesize
Novel non-ionic hydrogels were synthesized by radical homopolymerization of N-vinyl-2-pyrrolidone (VP) or by radical copolymerization of VP with methylacrylate (MA). A macroinimer (MIM) was used as a crosslinker and initiator, as well. The percentage of mass swelling ratios (S-M), the molecular weight between crosslinks (M-c) and Young's modulus of the hydrogels were investigated. The hydrogels were used as binding materials for different heavy metal ions such as Cu2+, Cd2+, Ni2+ and Zn2+ under varying conditions. The binding capability of the hydrogels toward the metal ions decreases in the following order: Cu2+ > Ni2+ > Zn2+ > Cd2+. (C) 2010 Elsevier B.V. All rights reserved.