Preparation and characterization of Ca-doped zinc oxide nanoparticles for heavy metal removal from aqueous solution
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Preparation and characterization of Ca-doped zinc oxide nanoparticles for heavy metal removal from aqueous solution Imed Ghilou, Jaber El Ghoul, Abueliz Modwi and Lassaad El Mir MRS Advances / FirstView Article / August 2016, pp 1 - 6 DOI: 10.1557/adv.2016.511, Published online: 14 July 2016
Link to this article: http://journals.cambridge.org/abstract_S2059852116005119 How to cite this article: Imed Ghilou, Jaber El Ghoul, Abueliz Modwi and Lassaad El Mir Preparation and characterization of Ca-doped zinc oxide nanoparticles for heavy metal removal from aqueous solution. MRS Advances, Available on CJO 2016 doi:10.1557/adv.2016.511 Request Permissions : Click here
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MRS Advances © 2016 Materials Research Society DOI: 10.1557/adv.2016.511
Preparation and characterization of Ca-doped zinc oxide nanoparticles for heavy metal removal from aqueous solution
Imed Ghiloufi1, 2 , Jaber El Ghoul1, 2, Abueliz Modwi 1, Lassaad El Mir1, 2 1
Al Imam Mohammad Ibn Saud Islamic University (IMSIU), College of Sciences, Riyadh, Saudi Arabia. 2 Laboratory of Physics of Materials and Nanomaterials Applied at Environment (LaPhyMNE), Faculty of Sciences, Gabes University, Tunisia.
ABSTRACT Nano zinc oxide (ZnO) and Calcium doped zinc oxide (CZ) nanopowders were synthesized by sol–gel method from zinc acetate di-hydrate and an adequate quantity of calcium chloride hexahydrate. Calcium doped zinc oxide (CZ) were prepared at different Ca concentrations from 1 wt% (CZ1) to 5 wt% (CZ5). The obtained nanopowders were characterized by transmission electron microscopy and X-ray diffraction. The objective of this work is to find a new and highly efficient nanomaterial for the adsorption of heavy metals from waste water. For this reason, the nanopowders were used to uptake heavy metals (Cr, Cd, and Ni) from aqueous solution. The obtained results show that the incorporation of Ca in nanoparticles zinc oxide (ZnO) increases the capacity adsorption of nanopowders and CZ3 is more efficient than the other Ca-doped samples. In this work we studied also the effect of pH and the pyrolysis temperature of the nanopowders on the removal of heavy metal ions from aqueous solution by CZ3. INTRODUCTION Many research groups have explored several nanoparticles for removal because of the ease of modifying their surface functionality and their high surface area to volume ratio for increased adsorption capacity and efficiency. Nanosized metal oxides (NMOs), including nanosized ferric oxides, manganese oxides, aluminum oxides, magnesium oxides and cerium oxides are classified as the promising ones for heavy metals removal from aqueous systems [1]. To date, NMOs are widely explored as highly efficient absorbents for heavy metal removal from water/wastewater. They exhibit various advantages such as fast kinetics, high capacity, and preferable sorption t
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