Adsorption Kinetics of Basic Blue-۴۱ Dye onto Synthetic Foam-Shaped Zeolite ZSM-۵

The synthesed foam-shaped zeolite ZSM-۵ material w:::as char:::acterized by X-ray diffraction (XRD), (FTIR) spectroscopy, scanning electron microscopy (SEM) and BET technique. The adsorption performances of the material were evaluated for the basic blue-۴۱ dye removal. A maximum removed amount of ۱۶۱.۲۹ mg/g  at ۳۲۳K was achieved. Experimental kinetic data of this new adsorbent fitted well the pseudo-second order model. The apparent diffusion coefficient values was in the range of ۱۰-۱۲ cm۲/s. The regeneration tests revealed that the adsorption efficiency of the foam-shaped zeolite was retained after three  regeneration runs, with a loss of ۶% of the original adsorbed value.

کلیدواژه ها:

zeolite ZSM-۵ ، basic blue ، adsorption ، diffusion coeffient ، adsorption energy ، regeneration