The study of adsorption characteristics Cu2+ and Pb2+ ions onto PHEMA and P(MMA-HEMA) surfaces from aqueous single solution
Yazarlar (5)
O. Moradi Islamic Azad University, Science And Research Branch, İran
M. Aghaie
Islamic Azad University, North Tehran Branch, İran
Islamic Azad University, North Tehran Branch, İran
K. Zare Islamic Azad University, Science And Research Branch, İran
Prof. Dr. Majıd MONAJJEMI Islamic Azad University, Science And Research Branch, İran
H. Aghaie Islamic Azad University, Science And Research Branch, İran
| Makale Türü | Özgün Makale (ESCI dergilerinde yayınlanan tam makale) | ||
| Dergi Adı | Journal of Hazardous Materials | ||
| Dergi ISSN | 0304-3894 Wos Dergi Scopus Dergi | ||
| Makale Dili | İngilizce | Basım Tarihi | 10-2009 |
| Cilt / Sayı / Sayfa | 170 / 2 / 673–679 | DOI | 10.1016/j.jhazmat.2009.05.012 |
| Makale Linki | http://www.scopus.com/inward/record.url?eid=2-s2.0-69249216428&partnerID=MN8TOARS | ||
| Özet |
| The adsorption characteristics of Cu2+ and Pb2+ ions onto poly2-hydroxyethyl methacrylate (PHEMA) and copolymer 2-hydroxyethyl methacrylate with monomer methyl methacrylate P(MMA-HEMA) adsorbent surfaces from aqueous single solution were investigated with respect to the changes in the pH of solution, adsorbent composition (changes in the weight percentage of MMA copolymerized with HEMA monomer), contact time and the temperature in the individual aqueous solutions. The linear correlation coefficients of Langmuir and Freundlich isotherms were obtained. The results revealed that the Langmuir isotherm fitted the experimental results better than the Freundlich isotherm. Using the Langmuir model equation, the monolayer adsorption capacity of PHEMA surface was found to be 0.840 and 3.037 mg/g for Cu2+ and Pb2+ ions and adsorption capacity of (PMMA-HEMA) was found to be 31.153 and 31.447 mg/g for Cu2+ and Pb2+ ions, respectively. Changes in the standard Gibbs free energy (ΔG0), standard enthalpy (ΔH0) and standard entropy (ΔS0) show that the adsorption of mentioned ions onto PHEMA and P(MMA-HEMA) are spontaneous and exothermic at 293-323 K. © 2009 Elsevier B.V. |
| Anahtar Kelimeler |
| 2-Hydroxyethyl methacrylate (HEMA) | Adsorption | Heavy metal ions | Langmuir isotherm |
Science Direct
The study of adsorption characteristics Cu2+ and Pb2+ ions onto PHEMA and P(MMA-HEMA) surfaces from aqueous single solution
BM Sürdürülebilir Kalkınma Amaçları
| Atıf Sayıları | |
| Web of Science | 143 |
| Scopus | 143 |