Kinetic Study of Mercury (II) Transport Through a Liquid Membrane Containing Calix[4]arene Nitrile Derivatives as a Carrier in Chloroform
Yükleniyor...
Dosyalar
Tarih
2010
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
ELSEVIER SCIENCE BV
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
In this study, the kinetics studies of mercury (II) ion transport through a bulk liquid membrane system which contains calix[4]arene nitrile derivatives (5,11,17,23-Tetra-tert-butyl-25,27-bis-(2-cyanobenzyloxy)-26,28-dihydroxycalix-[4]arene (membrane I) and 25,27-bis-(2-cyanomethoxy)-26,28-dihydroxycalix-Harene (membrane II) as a membrane were investigated at different temperatures and stirring rates. The kinetics was analyzed by means of a kinetic model involving two consecutive irreversible first order reactions. The parameters such as transport rate constants, membrane entrance rate, k(1), and the membrane exit rate, k(2), and the maximum values for membrane entrance and exit values J(d)(max) and J(a)(max) determined for the experimental data. It was found that both membrane entrance and exit rate constants increase with temperature. The activation energies were found as 6.96 +/- 0.15 and 6.91 +/- 0.15 kcal/mol, for ligand membranes land II, respectively. These activation values indicate that the transport process for both membranes is controlled by species diffusion.
Açıklama
Anahtar Kelimeler
Metal transport with mercury (II), Liquid membranes, Transport kinetics, Calixarene
Kaynak
Desalination
WoS Q Değeri
Q1
Scopus Q Değeri
Q1
Cilt
261
Sayı
01.02.2020
Künye
Gübbük, İ. H., Güngör, Ö., Alpoğuz, H. K., Ersöz, M., Yılmaz, M., (2010). Kinetic Study of Mercury (II) Transport Through a Liquid Membrane Containing Calix[4]arene Nitrile Derivatives as a Carrier in Chloroform. Desalination, 261, 157-161. doi:10.1016/j.desal.2010.05.011
