European Journal of Chemistry

Flotation-separation of toxic metal ions from aqueous solutions using thiosemicarbazide derivatives as chelating agents and oleic acid as a surfactant

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Published: Jun 15, 2010
DOI: https://doi.org/10.5155/eurjchem.1.2.76-82.53
Keywords:
Mercury, Manganese, Cadmium, Thiosemicabazide derivatives, Oleic acid, Natural water
Section
Research Article
Issue
Vol. 1 No. 2 (2010): June 2010
Dates
Received 2010-04-10
Accepted 2010-05-03
Published 2010-06-15


Main Article Content

Shaban El-Sayed Ghazy
Department of Chemistry, Faculty of ScienceMansoura University, Mansoura-35516, Egypt
Gaber Mohamed Abu El-Reash
Department of Chemistry, Faculty of ScienceMansoura University, Mansoura-35516, Egypt
Ola Ahmed Al-Gammal
Department of Chemistry, Faculty of ScienceMansoura University, Mansoura-35516, Egypt
Tarek Mohamed Yousef
Department of Chemistry, Faculty of ScienceMansoura University, Mansoura-35516, Egypt

Abstract

A simple and rapid procedure was developed for flotation-separation of toxic metal ions namely Hg2+, Mn2+ and Cd2+ from aqueous solutions. Thiosemicarbazide derivatives such as: 1-(amino-N-phenylmethanethio)-4-(pyridine-2-yl)thiosemicarbazide (H2PPS), N-phenyl-2-(pyridine-2-ylcarbamothioyl)hydrazinecarboxamide (H2PBO), 1-(amino(thioformyl)-N-phenylform)-4-(pyridine-2-yl)thiosemicarbazide (H2APO), and 1-(amino-N-(pyridine-3-yl) methanethio)-4-(pyridine-2-yl)thiosemicarbazide (H2PPY) have been used as organic chelating agents and oleic acid (HOL) as a surfactant. The different parameters affecting the flotation process namely, metal ion, ligands and surfactant concentrations, foreign ions (which are normally present in fresh and saline waters), pH and temperature are examined. About 100% of mercury, cadmium and manganese ions float at room temperature (~ 25 oC), at a metal:ligand ratio of 1:2  and at pH ~5. The procedure was successfully applied to recover Hg2+, Mn2+ and Cd2+ ions spiked into some water samples. The flotation mechanism is suggested based on some physical and chemical studies on the ligands and metal-complexes isolated from the floated layers.

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How to Cite
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Ghazy, S. E.-S.; Abu El-Reash, G. M.; Al-Gammal, O. A.; Yousef, T. M. Flotation-Separation of Toxic Metal Ions from Aqueous Solutions Using Thiosemicarbazide Derivatives As Chelating Agents and Oleic Acid As a Surfactant. Eur. J. Chem. 2010, 1, 76-82.

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Author Biographies

Shaban El-Sayed Ghazy, Department of Chemistry, Faculty of ScienceMansoura University, Mansoura-35516, Egypt

Shaban El-Sayed Ghazy is a Professor of Analytical Chemistry in the Department of Chemistry, Faculty of Science, Mansoura University. He also serves as Head of the Analytical group and as supervisor of the Environment Lab in the same department. His research interests include applications of flotation and sorption techniques in the field of wastewater treatment, pre-concentration prior to AAS and spectrophotometric determination and removal of pollutants from water samples. He has published more than 80 research papers in specialised journals

Gaber Mohamed Abu El-Reash, Department of Chemistry, Faculty of ScienceMansoura University, Mansoura-35516, Egypt

Gaber Mohamed Abu El-Reash is a professor of Inorganic Chemistry in the Department of Chemistry, Faculty of Science, Mansoura University. His research interests are in the field of preparing ligands, their metal complexes and thier analytical and biological applications.

Ola Ahmed Al-Gammal, Department of Chemistry, Faculty of ScienceMansoura University, Mansoura-35516, Egypt

Ola Ahed Al-Gammal is a Lecturer in the Department of Chemistry, Faculty of Science, Mansoura University. His research interests is in the field of preparing ligands, their metal complexes and thier analytical and biological applications.

Tarek Mohamed Yousef, Department of Chemistry, Faculty of ScienceMansoura University, Mansoura-35516, Egypt

Tarek Yousef is a researcher in Forensic Medicine,

He is pursuing his Ph.D. thesis under the supervision of Professor S.E. Ghazy, Professor Gaber Mohamed Abu El-Reess and Dr. Ola Ahmed Al-Gammal.

 

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