Article (Scientific journals)
Étude de l’adsorption du rouge de chlorophénol sur une hydrotalcite calcinée
Sayah, N.; Bakhti, A.; Fagel, Nathalie
2017In Revue des Sciences de l'Eau, 30 (2), p. 103-112
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Keywords :
Adsorption; Calcined hydrotalcite; Chlorophenol red; Calcination; Carbon capture; Chlorine compounds; Fourier transform infrared spectroscopy; Infrared spectroscopy; Phenols; Solutions; X ray diffraction; Adsorbent concentration; Adsorption capacities; Adsorption studies; Chlorophenols; Competitive ions; Hydrotalcite-like compound; Second-order models
Abstract :
[en] The color removal from aqueous solutions of chlorophenol red by adsorption on a calcined synthetic hydrotalcite was investigated. The solid [Mg-Al-CO3] was prepared by coprecipitation at constant pH and with an Mg/Al molar ratio of 2. The studies by X-ray diffraction (XRD) and infrared spectroscopy FTIR (Fourier Transform InfraRed spectroscopy) have shown that the material obtained corresponds to the hydrotalcite-like compounds with good crystallinity. The interaction dye-hydrotalcite shows that the kinetic of adsorption is fast and follows the second order model. The effects of the pH, adsorbent concentration, chlorophenol red concentration and competitive ions such as chloride and carbonate on the adsorption were studied. Solutions containing from 0.015 to 1.5 mmol∙L-1 of chlorophenol red were successfully treated. The adsorption capacity of the calcined hydrotalcite is close to 1.7 mmol∙g-1. This suggests that the calcined hydrotalcites could constitute interesting supports for the trapping of chlorophenol red. © Revue des sciences de l'eau, 2017.
Disciplines :
Earth sciences & physical geography
Author, co-author :
Sayah, N.;  Université de Mostaganem, Laboratoire de Biodiversité et Conservation des Eaux et des Sols, BP 992 RP, Mostaganem, Algeria
Bakhti, A.;  Université de Mostaganem, Laboratoire de Biodiversité et Conservation des Eaux et des Sols, BP 992 RP, Mostaganem, Algeria
Fagel, Nathalie  ;  Université de Liège - ULiège > Département de géologie > Argiles, géochimie et environnements sédimentaires
Language :
French
Title :
Étude de l’adsorption du rouge de chlorophénol sur une hydrotalcite calcinée
Alternative titles :
[en] Adsorption study of chlorophenol red on calcined hydrotalcite
Publication date :
2017
Journal title :
Revue des Sciences de l'Eau
ISSN :
0992-7158
eISSN :
1718-8598
Publisher :
Institut National de la Research Scientifique
Volume :
30
Issue :
2
Pages :
103-112
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 24 April 2018

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