Dye-ligand immobilized IPNs membrane for removal heavy metal ions
Yükleniyor...
Tarih
2003
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Wiley-V C H Verlag Gmbh
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
We have developed a novel approach to obtain high metal sorption capacity utilizing a membrane containing chitosan and an immobilized reactive dye (i.e. Reactive Yellow-2). The composite membrane was characterized by SEM, FTIR, swelling test, and elemental analysis. The membrane has uniform small pores distribution and the pore dimensions are between 5 and 10 pm, and the HEMA:chitosan ratio was 50:1. The reactive dye immobilized composite membrane was used in the removal of heavy metal ions [i.e., Pb(II), Hg(II) and Cd(II)] from aqueous medium containing different amounts of these ions (5-600 mg 1(-1)) and at different pH values (2.0-7.0). The maximum adsorption capacities of heavy metal ions onto the composite membrane under non-competitive conditions were 64.3 mmol m(-2) for Pb(II), 52.7 mmol m(-2) for Hg(II), 39.6 mmol m(-2) for Cd(II) and the affinity order was Pb(II) > Hg(II)>Cd(II).
Açıklama
4th International Conference on Polymer Solvent Complexes and Intercalates -- JUL 22-25, 2002 -- PRAGUE, CZECH REPUBLIC
Anahtar Kelimeler
adsorption, heavy metal removal, hydrophilic polymers, membranes reactive yellow-2
Kaynak
Macromolecular Symposia
WoS Q Değeri
Q2
Scopus Q Değeri
Q3
Cilt
203
Sayı
Künye
closedAccess
