Removal of azo dyes from aqueous solutions using calix[4]arene and beta-cyclodextrin
Küçük Resim Yok
Tarih
2007
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
ELSEVIER SCI LTD
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
A calix[4]arene-based oligomer 5 and a P-cyclodextrin polymer 6 were synthesized by the condensation of p-tert-butylcalix[4]arene and beta-cyclodextrin, respectively, with hexamethylene diisocyanate. In their batch sorption of selected azo dyes, the beta-cyclodextrin polymer 6 was found to be a better azo dye sorbent than the p-tert-butylcalix[4]arene-based oligomer 5. In addition, oligomer 4 containing pendant calix[4]arene units with crown-6 functionalities on the lower rim was synthesized and its complexation of the azo dyes was investigated by liquid-liquid extraction. The calix[4]crown-6 oligomer 4 showed the highest affinity for the azo dyes. (c) 2006 Elsevier Ltd. All rights reserved.
Açıklama
Anahtar Kelimeler
beta-cyclodextrin, calix[4]arene oligomer, azo dye, calix[4]crown-6
Kaynak
DYES AND PIGMENTS
WoS Q Değeri
Q1
Scopus Q Değeri
Q1
Cilt
74
Sayı
1
