Immobilization of Two Azacrown Ethers on Chitosan: Evaluation of Selective Extraction Ability Toward Cu(II) and Ni(II)

Küçük Resim Yok

Tarih

2009

Dergi Başlığı

Dergi ISSN

Cilt Başlığı

Yayıncı

TAYLOR & FRANCIS INC

Erişim Hakkı

info:eu-repo/semantics/closedAccess

Özet

Two Schiff base-type chitosan-azacrown ethers were prepared by a reaction of chitosan (CTS) with N-(4'-formylphenyl)aza-crown ethers, and they were converted to secondary-amino derivatives by the reduction of CTS-azacrown ethers with sodium borohydride. Their structures were confirmed by elemental analysis, infrared spectra and thermogravimetric analysis. The ability of these adsorbents to extract Cu(II) and Ni(II) ions from water by a solid-liquid extraction process was studied. The effects of adsorbent amount, contact time and pH on the adsorption of CTS-azacrown ethers were investigated. The extraction results showed that CTS-azacrown ethers had good sorption capacities for Cu(II) ions in the coexistence of Ni(II) ions.

Açıklama

Anahtar Kelimeler

Chitosan, modification, heavy metal, macrocyclics, ion binding, solid-liquid extraction

Kaynak

JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY

WoS Q Değeri

Q3

Scopus Q Değeri

Q2

Cilt

46

Sayı

8

Künye