| Yazarlar |
Mehmet Doğan
Balıkesir Üniversitesi, Türkiye |
|
Mahir Alkan
Balıkesir Üniversitesi, Türkiye |
Doç. Dr. Aydın TÜRKYILMAZ
Kastamonu Üniversitesi, Türkiye |
|
Yasemin Turhan
Balıkesir Üniversitesi, Türkiye |
| Özet |
| The kinetics and mechanism of methylene blue adsorption on perlite have been studied. The effects of various experimental parameters, such as initial dye concentration, temperature and pH on the adsorption rate were investigated. Adsorption measurements show that the process is very fast and physical in nature. The extent of the dye removal increased with increase in the initial concentration of the dye and the initial pH and temperature of solution. Adsorption data were modelled using the first and second-order kinetic equations, mass transfer and intra-particle diffusion models. It was shown that the second-order kinetic equation could best describe the sorption kinetics. The diffusion coefficient, D, was found to increase when the initial dye concentration, pH and temperature were raised. Thermodynamic activation parameters, such as ΔG*, ΔS* and ΔH*, were calculated. © 2004 Elsevier B.V. All rights reserved. |
| Anahtar Kelimeler |
| Dye | Intra-particle diffusion | Kinetics of adsorption | Methylene blue | Perlite | Rate constants | Thermodynamic activation parameters |
| Makale Türü | Özgün Makale |
| Makale Alt Türü | SSCI, AHCI, SCI, SCI-Exp dergilerinde yayımlanan tam makale |
| Dergi Adı | JOURNAL OF HAZARDOUS MATERIALS |
| Dergi ISSN | 0304-3894 |
| Dergi Tarandığı Indeksler | SCI-Expanded |
| Makale Dili | İngilizce |
| Basım Tarihi | 06-2004 |
| Cilt No | 109 |
| Sayı | 1 |
| Sayfalar | 141 / 148 |
| Doi Numarası | 10.1016/j.jhazmat.2004.03.003 |
| Makale Linki | http://linkinghub.elsevier.com/retrieve/pii/S0304389404001451 |
