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Adsorption behavior of cadmium on modified mesoporous aluminosilicates | ||
Journal of the Iranian Chemical Research | ||
مقاله 2، دوره 4، شماره 4، اسفند 2011، صفحه 219-226 اصل مقاله (164.85 K) | ||
نویسندگان | ||
Hamid Sepehrian* 1؛ Ramin Cheraghali2؛ Hojjat alla Abdi2؛ Peyman Rezaei2 | ||
1Nuclear Science and Technology Research Institute, AEOI , P.O. Box 11365/8486, Tehran, Iran | ||
2Chemistry Department, Islamic Azad University, Saveh Branch, Saveh, Iran | ||
چکیده | ||
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. | ||
کلیدواژهها | ||
Mesoporous؛ Aluminosilicate؛ Adsorption behavior؛ Cadmium | ||
مراجع | ||
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