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Regti, Abdelmajid, Laamari, My Rachid, Stiriba, Salah-Eddine, El Haddad, Mohammadine. (1396). Removal of Basic Blue 41 dyes using Persea americana-activated carbon prepared by phosphoric acid action. نشریه علمی پژوهشی دانشگاه آزاد اسلامی, 8(2), 187-195. doi: https://doi.org/10.1007/s40090-016-0090-z
Abdelmajid Regti; My Rachid Laamari; Salah-Eddine Stiriba; Mohammadine El Haddad. "Removal of Basic Blue 41 dyes using Persea americana-activated carbon prepared by phosphoric acid action". نشریه علمی پژوهشی دانشگاه آزاد اسلامی, 8, 2, 1396, 187-195. doi: https://doi.org/10.1007/s40090-016-0090-z
Regti, Abdelmajid, Laamari, My Rachid, Stiriba, Salah-Eddine, El Haddad, Mohammadine. (1396). 'Removal of Basic Blue 41 dyes using Persea americana-activated carbon prepared by phosphoric acid action', نشریه علمی پژوهشی دانشگاه آزاد اسلامی, 8(2), pp. 187-195. doi: https://doi.org/10.1007/s40090-016-0090-z
Regti, Abdelmajid, Laamari, My Rachid, Stiriba, Salah-Eddine, El Haddad, Mohammadine. Removal of Basic Blue 41 dyes using Persea americana-activated carbon prepared by phosphoric acid action. نشریه علمی پژوهشی دانشگاه آزاد اسلامی, 1396; 8(2): 187-195. doi: https://doi.org/10.1007/s40090-016-0090-z

Removal of Basic Blue 41 dyes using Persea americana-activated carbon prepared by phosphoric acid action

International Journal of Industrial Chemistry
دوره 8، شماره 2، شهریور 2017، صفحه 187-195
نوع مقاله: research article
شناسه دیجیتال (DOI): https://doi.org/10.1007/s40090-016-0090-z
نویسندگان
Abdelmajid Regti1؛ My Rachid Laamari1؛ Salah-Eddine Stiriba2، 3؛ Mohammadine El Haddad* 1
1Equipe de Chimie Analytique and Environnement, Faculté Poly-disciplinaire, Université Cadi Ayyad, BP 4162, 46000, Safi, Morocco
2Equipe de Chimie Moléculaire, Matériaux et Modélisation, Faculté Poly-disciplinaire, Université Cadi Ayyad, BP 4162, 46000, Safi, Morocco
3Instituto de Ciencia Molecular/ICMol, Universidad de Valencia, C/. Catedrático José Beltrán 2, Paterna, 46980, Valencia, Spain
چکیده
Adsorption study of Basic Blue 41 dye onto activated carbon from Persea americana nuts with phosphoric acid activation was achieved. The effect of operating parameters, the effect of pH (2–12), adsorbent amount (5–30 mg/50 mL), dye concentration (25–125 mg/L), contact time (0–200 min) and temperature (298–323 K), on the adsorption capacity was examined. The experimental isotherm data were analyzed using Langmuir and Freundlich models, which showed that the best fit was achieved by the Langmuir model with the maximum monolayer adsorption capacity at 625 mg/g. The adsorption kinetic process followed pseudo-second-order kinetics. Thermodynamic evaluation showed that the process was endothermic (ΔH 0 = 144.60 kJ/mol) and spontaneous (ΔG 0 varied from to −11.64 to −19.50 kJ/mol), while the positive value of entropy (ΔS 0 = 524.3 J/mol K) revealed increased randomness at the adsorbent–adsorbate interface. It was found to be a very efficient adsorbent and a promising alternative for dye removal from aqueous solutions.
کلیدواژه‌ها
Removal of dye؛ Persea americana-activated carbon؛ Surface area؛ Adsorption؛ Kinetics and thermodynamic studies
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تعداد مشاهده مقاله: 15


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