Evaluation of Chromium (Cr III) Adsorption using Modified Chitosan from Different pH Aqueous Solutions | ||
| The International Conference on Chemical and Environmental Engineering | ||
| Article 10, Volume 9, 9th International Conference on Chemical & Environmental Engineering, April 2018, Pages 180-203 PDF (1.28 M) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/iccee.2018.34662 | ||
| Authors | ||
| Magdy A. Wassel1; Anwar. A. Wassel2; Mahmoud Fathy3; Rasha Hosny4; O. H. Abdelraheem5 | ||
| 1Chemistry Department, Faculty of Science, Al-Azhar University, Cairo, Egypt. | ||
| 2College of Sciences, University of Damman, KSA. | ||
| 3National Organization for Drug Control and Research, Giza-Egypt. | ||
| 4Egyptian Petroleum Research Institute (EPRI). Cairo, Egypt. | ||
| 5Faculty of Engineering, Beni-Suef University, Egypt. | ||
| Abstract | ||
| Abstract Modified forms of chitosan beads were prepared and used for removal of trivalent chromium (Cr III) from different pH aqueous media. Modified chitosan were characterized by using FTIR, X-ray diffraction (XRD) and Scanning Electron Microscopy (SEM). Adsorption experiments were carried out in a batch process and some experimental parameters (initial chromium ion (Cr III) concentration, contact time, pH and temperature) were optimized. The experimental results were fit well to the Langmuir isotherm and followed a pseudo-second order kinetic model. Thermodynamic parameters such as ΔH, ΔS and ΔG were calculated, indicating that the adsorption was spontaneous and endothermic nature. | ||
| Keywords | ||
| Modified Chitosan; Cr (III); pH effect; Adsorption isotherm | ||
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