Kinetics and mechanism of removal of methylene blue by adsorption onto perlite
Yazarlar (4)
Mehmet Doǧan
Balikesir Üniversitesi, Türkiye
Balikesir Üniversitesi, Türkiye
Mahir Alkan
Balikesir Üniversitesi, Türkiye
Balikesir Üniversitesi, Türkiye
Doç. Dr. Aydın TÜRKYILMAZ Balikesir Üniversitesi, Türkiye
Prof. Dr. Yasemin Özdemir Balikesir Üniversitesi, Türkiye
| Makale Türü | Özgün Makale (SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale) | ||
| Dergi Adı | Journal of Hazardous Materials | ||
| Dergi ISSN | 0304-3894 Wos Dergi Scopus Dergi | ||
| Dergi Tarandığı Indeksler | SCI-Expanded | ||
| Makale Dili | İngilizce | Basım Tarihi | 06-2004 |
| Cilt / Sayı / Sayfa | 109 / 1 / 141–148 | DOI | 10.1016/j.jhazmat.2004.03.003 |
| Makale Linki | http://linkinghub.elsevier.com/retrieve/pii/S0304389404001451 | ||
| 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. |
| Anahtar Kelimeler |
| Dye | Intra-particle diffusion | Kinetics of adsorption | Methylene blue | Perlite | Rate constants | Thermodynamic activation parameters |
Science Direct
Kinetics and mechanism of removal of methylene blue by adsorption onto perlite
| Atıf Sayıları | |
| Web of Science | 505 |
| Scopus | 558 |
| Google Scholar | 720 |