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2013 (Vol. 6, Issue: 01)
Article Information:

Synthesis of NH2-MCM-41 Nano Porous Adsorbent and Using it for Zn and Ag Metals Removal from Aqueous Solutions by Adsorption Method and Studying Effect of Some Physicochemical Parameters on it

N. Jamshidi Ghadikolaei, N. Bahramifar and F. Ashrafi
Corresponding Author:  F. Ashrafi 

Key words:  Langmuir’s isotherm, mesoporous adsorbents, nano porous, NH2-MCM-41, , ,
Vol. 6 , (01): 26-32
Submitted Accepted Published
September 03, 2012 October 09, 2012 June 05, 2013
Abstract:

In this study we have investigated removal of Zn and Ag Ions from aqueous solutions. Industrial pollutions by heavy metals ions as Ag and Zn is a universal environmental problem, because of their toxicity. Thus, we have studied removal of these ions by NH2 -MCM-41 nano porous adsorbent at room temperature. This adsorbent has a high surface area, high adsorption ability, high factor of porosity and wide porous. In the batch experiment we have taken 150 cm-3 of considered metallic ion aqueous solution. After pH adjustment, nano porous absorbent was added and it was agitated by a rotary shaker. Then, pH, amount of adsorbent, initial concentration of metallic ion, time of contact and temperature parameters have determined. Thus, recovery of Ag and Zn metallic ions at pH = 7, adsorbent dose of 2 g/dm3 and room temperature obtained 96.93 and 99.24%, respectively. Thermodynamic results indicate that adsorption process is endothermic and spontaneous. Obtained adsorption isotherm was fitted by Langmuir’s adsorption isotherm which is single-layer adsorption. Moreover, this removal process has a second order kinetic. Synthesized adsorbent was characterized by FT-IR, SEM and XRD.
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  Cite this Reference:
N. Jamshidi Ghadikolaei, N. Bahramifar and F. Ashrafi, 2013. Synthesis of NH2-MCM-41 Nano Porous Adsorbent and Using it for Zn and Ag Metals Removal from Aqueous Solutions by Adsorption Method and Studying Effect of Some Physicochemical Parameters on it.  Research Journal of Applied Sciences, Engineering and Technology, 6(01): 26-32.
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ISSN (Online):  2040-7467
ISSN (Print):   2040-7459
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