Author/Authors :
Sepehrian, Hamid Nuclear Science and Technology Research Institute - AEOI , P.O. Box 11365/8486, Tehran , Cheraghali, Ramin Chemistry Department - Islamic Azad University - Saveh Branch , Abdi, Hojjat alla Chemistry Department - Islamic Azad University - Saveh Branch , Rezaei, Peyman Chemistry Department - Islamic Azad University - Saveh Branch
Abstract :
In this study, mesoporous MCM-41 has been modified by incorporation of aluminum ion as
a rapid, simple and inexpensive method for modification. The adsorbent is characterized using
powder X-ray diffraction and nitrogen adsorption-desorption isotherm data. The distribution
coefficient of cadmium ion on the mesoporous aluminosilicates has been enhanced with the
increase of the aluminum in the framework of the adsorbent. Adsorption behavior of cadmium
on the Al10MCM-41 and Al20MCM-41 adsorbents has been studied and experimental
adsorption isotherm is successfully described by Langmuir model. The maximum adsorption
cadmium capacity was 11.5 mg g-1. The effects of pH and adsorption kinetics have also been
studied by batch method and the result shows pH of solution hasn't any effect on cadmium
adsorption.
Keywords :
Mesoporous , Aluminosilicate , Adsorption behavior , Cadmium
