Synthesis and characterization of Mg-Fe layer double hydroxides and its application on adsorption of Orange G from aqueous solution
| Autor: | Z. Derriche, Abdelhadi Bentouami, N. Bettahar, N. Benselka-Hadj Abdelkader, L.C. de Ménorval |
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| Přispěvatelé: | Institut Charles Gerhardt Montpellier - Institut de Chimie Moléculaire et des Matériaux de Montpellier (ICGM ICMMM), Ecole Nationale Supérieure de Chimie de Montpellier (ENSCM)-Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM)-Université Montpellier 1 (UM1)-Université Montpellier 2 - Sciences et Techniques (UM2)-Institut de Chimie du CNRS (INC) |
| Jazyk: | angličtina |
| Rok vydání: | 2011 |
| Předmět: |
Pollutants
Sorbent Acidic dye General Chemical Engineering Inorganic chemistry Orange G 02 engineering and technology 010402 general chemistry 01 natural sciences Industrial and Manufacturing Engineering law.invention symbols.namesake chemistry.chemical_compound Adsorption law Environmental Chemistry Calcination Aqueous solution Chemistry Langmuir adsorption model Sorption General Chemistry [CHIM.MATE]Chemical Sciences/Material chemistry 021001 nanoscience & nanotechnology 6. Clean water 0104 chemical sciences Mg-Fe LDH symbols Hydroxide 0210 nano-technology |
| Zdroj: | Chemical Engineering Journal Chemical Engineering Journal, Elsevier, 2011, 169, pp.231-238. ⟨10.1016/j.cej.2011.03.019⟩ |
| ISSN: | 1385-8947 |
| DOI: | 10.1016/j.cej.2011.03.019⟩ |
| Popis: | International audience; Layered double hydroxide (LDH) with hydrotalcite-like structure containing Mg(II) and Fe(III) in the layers and its calcined form were prepared at different Mg/Fe molar ration by co-precipitation method at fixed pH= 10 and followed by calcination at 500 ◦C (denoted CLDH). The obtained materials were characterized by powder X-ray diffraction (PXRD), FT-IR spectroscopy, and TGA. The prepared LDH and CLDH were used for Orange G (Acid Orange 10) dye removal from aqueous solutions. Batch studies were carried out to address various experimental parameters such as contact time, pH, sorbent dose and temperature. The sorption kinetics data fitted the pseudo-second order model. The isotherms were established and the parameters calculated. The sorption data fitted the Langmuir model with good values of the correlation coefficient. The sorption capacity of CLDH was found to be almost independent on initial pH of solution in the range 3-13 and approximately 5 times higher than that of LDH. |
| Databáze: | OpenAIRE |
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