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Elimination of the pesticide 2,4-D by synthesized anion clays starting from marine water
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نویسنده
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Sadik N. ,Sabbar E. ,Lakraimi M. ,Mountadar M.
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منبع
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journal of materials and environmental science - 2012 - دوره : 3 - شماره : 2 - صفحه:379 -390
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چکیده
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The layered double hydroxide (ldh) is synthesis from seawater. we studied as potential adsorbents of organic pollutant: herbicide 2,4-d. the adsorption tests were carried out in aqueous medium under air atmosphere, taking into account the effect of some experimental factor, ie as the calcination temperature, contact time, ph, ratio adsorbent / adsorbate and charge density. the results show that the calcined ldh possessed a very high adsorption capacity, and that the adsorption kinetics of 2.4-d by calcined ldh is fast (equilibrium is reached after 20 minutes of contact). the adsorption isotherm of 2,4-d by calcined ldh is the type s. this type of isotherm confirms the weak interaction between the solute molecules and the adsorbent
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کلیدواژه
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Layered double hydroxides; Anionic clays ; Synthesis; Marine water; Calcinations; Adsorption; Pesticide; Herbicide 2 ,4-D.
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آدرس
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Chouaıb Doukkali University, Faculty of Science of El Jadida, Unit of Chemistry Analytical and Sciences of the Environment, Maroc, Chouaıb Doukkali University, Faculty of Science of El Jadida, Laboratory of Physicochemistry of Materials, Maroc, Université Cadi Ayyad of Marrakech, ENS, Maroc, Université Chouaib Doukkali, Faculté des Sciences d’El Jadida, Unit of Chemistry Analytical and Sciences of the Environment, Maroc
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پست الکترونیکی
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esabbar@yahoo.fr
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Authors
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