Adsorbents based on natural polymers for removal of some heavy metals from aqueous solution
Heavy metal ions are discharged into water from several industries. They are carcinogenic and they cause severe environmental hazards. In the present work the ability of removal of copper and lead from aqueous solutions has been studied using carboxy methyl β cyclodextrin, poly(ethylene glycol) β cy...
Saved in:
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Egyptian Petroleum Research Institute
2017-03-01
|
| Series: | Egyptian Journal of Petroleum |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S1110062115301239 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1849766074340343808 |
|---|---|
| author | Ahmed Fawzy El-Kafrawy Shimaa Mohamed El-Saeed Reem Kamel Farag Hend Al-Aidy El-Saied Manar El-Sayed Abdel-Raouf |
| author_facet | Ahmed Fawzy El-Kafrawy Shimaa Mohamed El-Saeed Reem Kamel Farag Hend Al-Aidy El-Saied Manar El-Sayed Abdel-Raouf |
| author_sort | Ahmed Fawzy El-Kafrawy |
| collection | DOAJ |
| description | Heavy metal ions are discharged into water from several industries. They are carcinogenic and they cause severe environmental hazards. In the present work the ability of removal of copper and lead from aqueous solutions has been studied using carboxy methyl β cyclodextrin, poly(ethylene glycol) β cyclodextrin and their magnetic counterparts. Effects of pH, concentration of the metal ion, temperature and contact time have been studied. Equilibrium isotherms for the adsorption of the metals were measured experimentally. Results were analysed at different temperatures and the characteristic parameters for each adsorption isotherm were determined. The adsorption process has been found exothermic in nature and thermodynamic parameters, Gibb’s free energy (ΔG), change in enthalpy (ΔH) and change in entropy (ΔS) have been calculated. The paper also includes results on the kinetic measurements of adsorption of the metal on modified β cyclodextrin and their magnetic nano composites at different temperatures. It was found that poly (ethylene glycol) β cyclodextrin showed better performance than carboxy methyl β cyclodextrin. |
| format | Article |
| id | doaj-art-db992f52076f49a3a134c4aff08dadb7 |
| institution | DOAJ |
| issn | 1110-0621 |
| language | English |
| publishDate | 2017-03-01 |
| publisher | Egyptian Petroleum Research Institute |
| record_format | Article |
| series | Egyptian Journal of Petroleum |
| spelling | doaj-art-db992f52076f49a3a134c4aff08dadb72025-08-20T03:04:42ZengEgyptian Petroleum Research InstituteEgyptian Journal of Petroleum1110-06212017-03-01261233210.1016/j.ejpe.2016.02.007Adsorbents based on natural polymers for removal of some heavy metals from aqueous solutionAhmed Fawzy El-Kafrawy0Shimaa Mohamed El-Saeed1Reem Kamel Farag2Hend Al-Aidy El-Saied3Manar El-Sayed Abdel-Raouf4Faculty of Science, Ain Shams University, Abbasya, Cairo, EgyptEgyptian Petroleum Research Institute, Nasr City, Cairo, EgyptEgyptian Petroleum Research Institute, Nasr City, Cairo, EgyptEgyptian Petroleum Research Institute, Nasr City, Cairo, EgyptEgyptian Petroleum Research Institute, Nasr City, Cairo, EgyptHeavy metal ions are discharged into water from several industries. They are carcinogenic and they cause severe environmental hazards. In the present work the ability of removal of copper and lead from aqueous solutions has been studied using carboxy methyl β cyclodextrin, poly(ethylene glycol) β cyclodextrin and their magnetic counterparts. Effects of pH, concentration of the metal ion, temperature and contact time have been studied. Equilibrium isotherms for the adsorption of the metals were measured experimentally. Results were analysed at different temperatures and the characteristic parameters for each adsorption isotherm were determined. The adsorption process has been found exothermic in nature and thermodynamic parameters, Gibb’s free energy (ΔG), change in enthalpy (ΔH) and change in entropy (ΔS) have been calculated. The paper also includes results on the kinetic measurements of adsorption of the metal on modified β cyclodextrin and their magnetic nano composites at different temperatures. It was found that poly (ethylene glycol) β cyclodextrin showed better performance than carboxy methyl β cyclodextrin.http://www.sciencedirect.com/science/article/pii/S1110062115301239β cyclodextrinCopperLeadPoly ethylene glycol β cyclodextrin |
| spellingShingle | Ahmed Fawzy El-Kafrawy Shimaa Mohamed El-Saeed Reem Kamel Farag Hend Al-Aidy El-Saied Manar El-Sayed Abdel-Raouf Adsorbents based on natural polymers for removal of some heavy metals from aqueous solution Egyptian Journal of Petroleum β cyclodextrin Copper Lead Poly ethylene glycol β cyclodextrin |
| title | Adsorbents based on natural polymers for removal of some heavy metals from aqueous solution |
| title_full | Adsorbents based on natural polymers for removal of some heavy metals from aqueous solution |
| title_fullStr | Adsorbents based on natural polymers for removal of some heavy metals from aqueous solution |
| title_full_unstemmed | Adsorbents based on natural polymers for removal of some heavy metals from aqueous solution |
| title_short | Adsorbents based on natural polymers for removal of some heavy metals from aqueous solution |
| title_sort | adsorbents based on natural polymers for removal of some heavy metals from aqueous solution |
| topic | β cyclodextrin Copper Lead Poly ethylene glycol β cyclodextrin |
| url | http://www.sciencedirect.com/science/article/pii/S1110062115301239 |
| work_keys_str_mv | AT ahmedfawzyelkafrawy adsorbentsbasedonnaturalpolymersforremovalofsomeheavymetalsfromaqueoussolution AT shimaamohamedelsaeed adsorbentsbasedonnaturalpolymersforremovalofsomeheavymetalsfromaqueoussolution AT reemkamelfarag adsorbentsbasedonnaturalpolymersforremovalofsomeheavymetalsfromaqueoussolution AT hendalaidyelsaied adsorbentsbasedonnaturalpolymersforremovalofsomeheavymetalsfromaqueoussolution AT manarelsayedabdelraouf adsorbentsbasedonnaturalpolymersforremovalofsomeheavymetalsfromaqueoussolution |