Removal of Neodymium from Aqueous Solutions Using a New Fe-modified Nanoporous Adsorbent of Fe-MCM-41

Subject Areas : Polymer

Seyedeh Aseman Lajevardi ¹ ()
Roghayeh Madadi Hamzeh Khanlou ² ()
Mahboobeh Manoochehri ³ ()

Received: 2015-11-11 Accepted : 2015-11-11 Published : 2015-01-01

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Abstract :

In our study a new Fe-modified nano porous of MCM-41 was synthezied hydrothermally with cetyltrimethylammoniumbromide (C16TAB) as surfactant and charactrizied using XRD, SEM, FT-IR and BET. This work reports the adsorption of Neodymium from aqueous solution onto Fe-MCM-41.100 ml of stock solution of Neodymium was prepared.Various factors such as pH,the amount of adsorbent were considered. The optimium conditions obtained were: pH value= 5-8,the amount of Fe-MCM-41=0.0025gr.The Langmuir, Freundlich, Temkin and Dubinin-Rudeshkuvich models have been applied and the equilibrium adsorption was found fit the Freundlich isotherm model(R2= 0.98). The removal amount of adsorbed Neodymium was obtained 97% and charactrizied by Inductivity coupled optical emission spectroscopy (ICP-OES).