Nanodimensional AlMCM-۴۱ material for adsorption of dyes: Thermodynamic and kinetic studies
Publish place: International Journal of Nano Dimension، Vol: 4، Issue: 2
Publish Year: 1392
نوع سند: مقاله ژورنالی
زبان: English
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شناسه ملی سند علمی:
JR_IJND-4-2_001
تاریخ نمایه سازی: 24 تیر 1401
Abstract:
AlMCM-۴۱ was applied for adsorption of methylene blue (MB) and auramine (AU) in single and binary component systems. In the single component systems, AlMCM-۴۱ represents higher adsorption capacity for MB than AU with the maximal adsorption capacity of ۲.۰۷×۱۰−۴ and ۱.۱۵×۱۰−۴ mol/g at ۲۵ ˚C for MB and AU, respectively. In the binary component system, MB and AU exhibit competitive adsorption onto the adsorbent. In single and binary component systems, kinetic and adsorption isotherm studies demonstrate that the data are following pseudo-second-order kinetic model and Langmuir isotherm. Also, in both cases, kinetic data is fairly described by two-step diffusion model. Effect of solution pH on the adsorption of MB and AU in single and binary component systems was studied and the results were described by electrostatic interactions.
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Authors
Shabnam Sohrabnezhad
Department of Chemistry, Faculty of Science, University of Guilan, P.O. Box ۱۹۱۴, Rasht, Iran.
A. Habibi-Yangjeh
Department of Chemistry, University of Mohaghegh Ardabili, P.O. Box ۱۷۹, Ardabil, Iran.
S. Eftekhari
Department of Chemistry, University of Mohaghegh Ardabili, P.O. Box ۱۷۹, Ardabil, Iran.