Kurumun Atıf Alan Makalesi
Atıf Alan Yayın
Removal efficiency of a calix[4]arene-based polymer for water-soluble carcinogenic direct azo dyes and aromatic amines
Scopus
Toplam 131 atıf DOI
A Mannich base derivative of 5,11,17,23-tetrakis-[(1,4-dioxa-8-azaspiro-[4.5]decanyl)methyl]-25,26,27,28-tetrahydroxy calix[4]arene 3 was synthesized by the treatment of calix[4]arene with a cyclic secondary amine (1,4-dioxa-8-azaspiro-[4.5]decane) and formaldehyde. The compound 3 was treated with dibromoxylene to obtain a calix[4]arene-based copolymer 4. In batch sorption experiments of selected carcinogenic azo dyes and aromatic amines, the compounds 3 and 4 were found to be a better sorbent for azo dyes than for the aromatic amines. It was observed that the percentage of azo dye removal was 95-99% for compound 3 and 83-97% for 4 when the pH of the dye solution was in the range of 2.0-8.0. The sorption of azo dyes and aromatic amines by calix[4]arenes-based compounds indicates that amino groups play the major role for the formation of hydrogen bonds and electrostatic interactions. © 2008 Elsevier B.V. All rights reserved.
Atıf Kaynağı
Atıf Yapan Yayın
Removal of carcinogenic Azo dyes from water by new cyclodextrin-immobilized iron oxide magnetic nanoparticles
Scopus
Havuzumuzda 35 atıf almış
In this study, β-cyclodextrin was functionalized with [3-(2,3-epoxypropoxy)propyl]trimethoxysilane to obtain a new silica-based β-cyclodextrin in order to provide a binding side for immobilization onto iron oxide magnetic nanoparticles (MNPs). The prepared β-cyclodextrin- immobilized MNPs were characterized by a combination of Fourier Transform Infrared Spectroscopy, transmission electron microscopy, elemental analyses, and X-ray diffraction analysis. Moreover, the study regarding the removal of carcinogenic azo dyes such as Direct Blue 15, Evans Blue, and Chicago Sky Blue from aqueous solutions was also carried out using β-cyclodextrin- immobilized MNPs in a solid-liquid sorption system. The results indicate that the prepared β-cyclodextrin-based magnetic sorbent has high sorption ability towards Direct Blue 15, Evans Blue, and Chicago Sky Blue with ~98, 99, and 99 % at pH 3.0, respectively. © 2013 Springer Science+Business Media Dordrecht.
Atıf Yapan Makale Bilgileri
Kurumlar (2)
Kirklareli Üniversitesi
Kirklareli, Turkey
Selçuk Üniversitesi
Selçuklu, Turkey