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Adsorption of Methylene Blue from Aqueous Solution on the Surface of Znapso-34 Nanoporous Material
Authors: B. Abbad, A. Lounis, Tassalit Djilali
Abstract:
The effects of equilibrium time, solution pH, and sorption temperature of cationic methylene blue (MB) adsorption on nanoporous metallosilicoaluminophosphate ZnAPSO-34 was studied using a batch equilibration method. UV–VIS spectroscopy was used to obtain the adsorption isotherms at 20° C. The optimum period for adsorption was 300 min. However, MB removal increased from 81,82 % to 94,81 %. The equilibrium adsorption data was analyzed by using Langmuir, Freundlich and Temkin isotherm models. Langmuir isotherm was found to be the better-fitting model and the process followed pseudo second–order kinetics. The results showed that ZnAPSO-34 could be employed as an effective material and could be an attractive alternative for the removal of dyes and colors from aqueous solutions.Keywords: Adsorption, Dye, Metallosilicoaluminophosphate, Methylene Blue.
Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1330225
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