Journal of Nuclear Science, Engineering and Technology (JONSAT)
In cooperation with the Iranian Nuclear Society

Adsorption of Sr2+ by MCM-41 Functionalized by Aminosilane Group

Document Type : Research Paper

Authors

H Faghihian
Sh Nasri
S Khansari
Abstract
In this research, MCM-41 molecular sieve was synthesized, and was characterized by XRD, FT-IR, TG and BET techniques. The ability of the adsorbent towards Sr2+ was then investigated. In order to increase the adsorption capacity of the molecular sieve, the sample was modified by 3-amino propyltrimethoxysilane. The modified MCM-41 was used for the Sr2+ removal at different experimental conditions. The effect of different parameters including pH of the solution, contact time, initial concentration of Sr2+ and temperature were also studied. We concluded that the adsorption of Sr2+ increases as the initial pH of the solution increases. The maximum adsorption capacity of 6.0 mg/g obtained.

Highlights

 

 

  1. 1.    A. Ramanujam, P.V. Achuthan, P.S. Dhami, R. Kannan, V. Gopalakrishnan, V.P. Kansra, R.H. Iyer, K. Balu, “Separation of carrier-free 90Y from high level waste by supported liquid membrane using KSM-17,” J. Radioanal. Nucl. Chem. 247, 185-191 (2001).

 

  1. 2.    N.N. Greanwood, A. Earnshaw, “Chemistry of elements,” Pergamon Press, New Youk, 107-136 (1984).

 

  1. 3.    A. Heidari, H. Younesi, Z. Mehraban, “Removal of Ni(II), Cd(II) and Pb(II) from a ternary aqueous solution by aminofunctionalized mesoporous and nano mesoporous silica,” Chem. Eng. J 153, 70–79 (2009).

 

  1. 4.    R. Gong, Y. Jin, J. Sun, “Preparation and utilization of rice straw bearing carboxyl groups for removal of basic dyes from aqueous solution,” Dyes Pigm. 76, 519-524 (2008).

 

  1. 5.    J.C. Vartuli, W.J. Roth, J.S. Beck, “Molecular sieves-science and technology,” 1, 97-119 (1998).

 

  1. 6.    F.L. Lam, X. Chen, C.M. Fong, K.L. Yeung, “Selective mesoporous adsorbents for Ag+/Cu2+ separation,” Chem. Commun. 17, 2034-2036 (2008).

 

  1. 7.    F.L. Koon, L.Y. King, M. Gordon, “Efficient approach for Cd2+ and Ni2+ removal and recovery using mesoporous adsorbent with tunable selectivity,” Environ. Sci. Technol. 41, 3329-3334 (2007).

 

  1. 8.    K.F. Lam, C.M. Fong, K.L. Yeung, G. Mckay, “Selective adsorption of gold from complex mixtures using mesoporous adsorbents,” Chem. Eng. J. 145, 185-195 (2008).

 

  1. 9.    R. Saad, S. Hamoudi, K. Belkacemi, “Adsorption of phosphate and nitrate anions on ammonium-functionalized mesoporous silicas,” J. Porous Mater. 15, 315-323 (2008).

 

10. L. Bois, A. Bonhommé, A. Ribes, B. Pais, G. Raffin, F. Tessier, “Functionalized silica for heavy metal ions adsorption,” Coll. Surf. A: Physicochem. Eng. Aspects. 221, 221-230 (2003).

 

11. S. Gueu, B. Yao, K. Adouby, G. Ado, “Kinetics and thermodynamics study of lead adsorption on to activated carbons from coconut and seed hull of the plam tree,” Int. J. Environ. Sci. Tech. 4, 11-17 (2007).

 

Keywords

Molecular Sieve MCM-41
Sr2+
Adsorption Capacity NH2-MCM-41

  1.  

     

    1. 1.    A. Ramanujam, P.V. Achuthan, P.S. Dhami, R. Kannan, V. Gopalakrishnan, V.P. Kansra, R.H. Iyer, K. Balu, “Separation of carrier-free 90Y from high level waste by supported liquid membrane using KSM-17,” J. Radioanal. Nucl. Chem. 247, 185-191 (2001).

     

    1. 2.    N.N. Greanwood, A. Earnshaw, “Chemistry of elements,” Pergamon Press, New Youk, 107-136 (1984).

     

    1. 3.    A. Heidari, H. Younesi, Z. Mehraban, “Removal of Ni(II), Cd(II) and Pb(II) from a ternary aqueous solution by aminofunctionalized mesoporous and nano mesoporous silica,” Chem. Eng. J 153, 70–79 (2009).

     

    1. 4.    R. Gong, Y. Jin, J. Sun, “Preparation and utilization of rice straw bearing carboxyl groups for removal of basic dyes from aqueous solution,” Dyes Pigm. 76, 519-524 (2008).

     

    1. 5.    J.C. Vartuli, W.J. Roth, J.S. Beck, “Molecular sieves-science and technology,” 1, 97-119 (1998).

     

    1. 6.    F.L. Lam, X. Chen, C.M. Fong, K.L. Yeung, “Selective mesoporous adsorbents for Ag+/Cu2+ separation,” Chem. Commun. 17, 2034-2036 (2008).

     

    1. 7.    F.L. Koon, L.Y. King, M. Gordon, “Efficient approach for Cd2+ and Ni2+ removal and recovery using mesoporous adsorbent with tunable selectivity,” Environ. Sci. Technol. 41, 3329-3334 (2007).

     

    1. 8.    K.F. Lam, C.M. Fong, K.L. Yeung, G. Mckay, “Selective adsorption of gold from complex mixtures using mesoporous adsorbents,” Chem. Eng. J. 145, 185-195 (2008).

     

    1. 9.    R. Saad, S. Hamoudi, K. Belkacemi, “Adsorption of phosphate and nitrate anions on ammonium-functionalized mesoporous silicas,” J. Porous Mater. 15, 315-323 (2008).

     

    10. L. Bois, A. Bonhommé, A. Ribes, B. Pais, G. Raffin, F. Tessier, “Functionalized silica for heavy metal ions adsorption,” Coll. Surf. A: Physicochem. Eng. Aspects. 221, 221-230 (2003).

     

    11. S. Gueu, B. Yao, K. Adouby, G. Ado, “Kinetics and thermodynamics study of lead adsorption on to activated carbons from coconut and seed hull of the plam tree,” Int. J. Environ. Sci. Tech. 4, 11-17 (2007).

     

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