Sorption characteristics of Cu(II) ions onto silica gel-immobilized calix[4]arene polymer in aqueous solutions: Batch and column studies

Küçük Resim Yok

Tarih

2008

Dergi Başlığı

Dergi ISSN

Cilt Başlığı

Yayıncı

ELSEVIER SCIENCE BV

Erişim Hakkı

info:eu-repo/semantics/closedAccess

Özet

In the present study, Cu(II) removal from aqueous solutions by sorption was investigated. Aminopropyl silica gel-immobilized calix[4]arene polymer (APSIC[4]P) was used in sorption as sorbent. During the experimental part of this study, the effect of parameters, such as pH, initial Cu(II) concentration, temperature on Cu(II) removal was observed. In addition, sorption isotherm studies and column studies were made. Maximum Cu(II) removal was obtained at pH 6 and 25 degrees C. In the isotherm studies, Langmuir and Freundlich isotherm models were applied and it was determined that the experimental data confirmed to Langmuir isotherm model. Batch sorption capacity (q(0)) was calculated as 5.08 mg/g. The capacity value for column study was obtained by graphical integration as 1.14 mg/g. The Thomas and the Yoon-Nelson models were applied to experimental data to predict the breakthrough curves and to determine the characteristics parameters of the column useful for process design. (C) 2007 Elsevier B.V. All rights reserved.

Açıklama

Anahtar Kelimeler

Cu(II) removal, calix[4]arene polymer, sorption, batch study, column study

Kaynak

JOURNAL OF HAZARDOUS MATERIALS

WoS Q Değeri

Q1

Scopus Q Değeri

Q1

Cilt

151

Sayı

02.03.2020

Künye