Synthesis and Characterization of Chitosan/ZrO2 Nanocomposite and Its Application in the Removal of Rose Bengal Dye | ||
| Egyptian Journal of Chemistry | ||
| Article 34, Volume 65, Issue 12, December 2022, Pages 357-367 PDF (970.13 K) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/ejchem.2022.120576.5408 | ||
| Authors | ||
| Ahmed Abdelwakel Thabet1; Ahmed Samer Elfaky1; Wael Sabry Mohamed* 2; Ahmed El-Zaref3; Zein Elbahy1 | ||
| 1Chemistry Department, Faculty of Science, Al-Azhar University, Nasr City, P.B. 11884, Cairo, Egypt | ||
| 2National research centre | ||
| 3Department of Chemistry, Faculty of Science, Al-Azhar University, Cairo, Egypt. | ||
| Abstract | ||
| The removal of Rose Bengal dye (RB) from aqueous solution was tested by the adsorption process at initial dye concentration in the range of 3–50 ppm. For this purpose, a novel and sustainable Chitosan/Zirconium oxide nanocomposite (CS/ZrO2 NCs) was prepared by incorporating Zirconium oxide nanoparticles (ZrO2 NPs) into Chitosan nanoparticles (CS NPs). The prepared CS/ZrO2 NCs samples were characterized by many spectral techniques such as XRD, FTIR, SEM, EDX and TEM. The adsorption conditions such as dye concentration, contact time and CS/ZrO2 mass ratios were optimized. The experimental data shows that CS/ZrO2 containing 30% of ZrO2 NPs (CS/ZrO2 (30%)) has the highest adsorption capacity for eliminating RB dye among all the prepared samples. The maximum dye removal efficiency increased from 46% for Chitosan to 78% for the sample containing 30% of ZrO2 in CS/ZrO2 NCs. Isotherm models such as Langmuir and Freundlich were analysed. Kinetic studies indicated that Freundlich isotherm and pseudo-second order models are the best fitting for our experimental results. | ||
| Keywords | ||
| Chitosan; ZrO2; adsorption; Isotherm; Kinetics | ||
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