Copyright (c) 2015 AJC
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Separation and Pre-concentration of Some Metals Using Amino-azole Derivatives Supported on Silica
Corresponding Author(s) : Mervette El Batouti
Asian Journal of Chemistry,
Vol. 27 No. 9 (2015): Vol 27 Issue 9
Abstract
The present study aimed to evaluate the efficiency of amino-azole derivatives supported on silica gel for the separation of some heavy metals e.g., Cu2+, Cd2+ and Hg2+. Silica gel was modified by using 3-chloropropyltriethoxysilane and sorption parameters were determined. The newly modified phases were characterized using IR, NMR and elemental analysis and sorption efficiency parameters were determined. The results indicated that the surface coverage and sorption capacity values ranged from 0.48 to 0.54 mmol and 0.03 to 0.45 mmol/g of modified silica, respectively and separation capacity values increased by increasing pH values and did not affected by increasing temperature. Thermal analysis demonstrated non-catalytic degradation effects due to the formation of metals chelates on the silica surface. In addition, it was found that 20-30 min was sufficient to complete sorption and 85-90 % of the sorbed metals occurred within the first 5-10 min. On the other hand, HCl was found to be most potent acid to elute the tested metals at a concentration of 0.2 mol/L. Higher stability and higher distribution coefficient (Kd) of the modified silica were found compared to non-modified silica as well as the possibility of using it is. Real samples collected from industrial areas located at Al-Qassin region, Kingdom of Saudi Arabia illustrated the validity and feasibility of the proposed procedure for the separation and pre-concentration of the selected metals.
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- V.A. Lemos, W.N.L. Santos, J.S. Santos and M.B. de Carvalho, Anal. Chim. Acta, 481, 283 (2003); doi:10.1016/S0003-2670(03)00084-9.
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- J. Sysalova and J. Szakova, Environ. Res., 101, 287 (2006); doi:10.1016/j.envres.2005.10.001.
- E. Carasek, Talanta, 51, 173 (2000); doi:10.1016/S0039-9140(99)00274-X.
- E.L. da Silva, E.M. Ganzarolli and E. Carasek, Talanta, 62, 727 (2004); doi:10.1016/j.talanta.2003.09.014.
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- A.R. Ghiasvand and R. Ghaderi, Talanta, 62, 287 (2004); doi:10.1016/j.talanta.2003.07.011.
- C.F. Poole, Trends Analyt. Chem., 22, 362 (2003); doi:10.1016/S0165-9936(03)00605-8.
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- P.K. Jal, S. Patel and B.K. Mishra, Talanta, 62, 1005 (2004); doi:10.1016/j.talanta.2003.10.028.
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- D. Barceló and M.-C. Hennion, Anal. Chim. Acta, 318, 1 (1995); doi:10.1016/0003-2670(95)00423-8.
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References
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J. Chwastowska, W. Skwara, E. Sterli’nska and L. Pszonicki, Talanta, 66, 1345 (2005); doi:10.1016/j.talanta.2005.01.055.
H.F. Maltez, M.A. Vieira, A.S. Ribeiro, A.J. Curtius and E. Carasek, Talanta, 74, 586 (2008); doi:10.1016/j.talanta.2007.06.025.
J. Yin, Z. Jiang, G. Chang and B. Hu, Anal. Chim. Acta, 540, 333 (2005); doi:10.1016/j.aca.2005.03.045.
J. Sysalova and J. Szakova, Environ. Res., 101, 287 (2006); doi:10.1016/j.envres.2005.10.001.
E. Carasek, Talanta, 51, 173 (2000); doi:10.1016/S0039-9140(99)00274-X.
E.L. da Silva, E.M. Ganzarolli and E. Carasek, Talanta, 62, 727 (2004); doi:10.1016/j.talanta.2003.09.014.
E.K. Paleologos, D.L. Giokas and M.I. Karayannis, Trends Analyt. Chem., 24, 426 (2005); doi:10.1016/j.trac.2005.01.013.
K.S. Abou-El-Sherbini, I.M.M. Kenawy, M.A. Ahmed, R.M. Issa and R. Elmorsi, Talanta, 58, 289 (2002); doi:10.1016/S0039-9140(02)00248-5.
A.R. Ghiasvand and R. Ghaderi, Talanta, 62, 287 (2004); doi:10.1016/j.talanta.2003.07.011.
C.F. Poole, Trends Analyt. Chem., 22, 362 (2003); doi:10.1016/S0165-9936(03)00605-8.
J. Haginaka, Trends Analyt. Chem., 24, 407 (2005); doi:10.1016/j.trac.2004.12.005.
Y. Gushikem and S.S. Rosatto, J. Braz. Chem. Soc., 12, 695 (2001); doi:10.1590/S0103-50532001000600002.
A.M.H. Shabani, S. Dadfarnia and K. Dehghan, Talanta, 59, 719 (2003); doi:10.1016/S0039-9140(02)00609-4.
J.C. Yu, X.J. Wu and Z.L. Chen, Anal. Chim. Acta, 436, 59 (2001); doi:10.1016/S0003-2670(01)00888-1.
E. Matoso, L.T. Kubota and S. Cadore, Talanta, 60, 1105 (2003); doi:10.1016/S0039-9140(03)00215-7.
J. Fan, C. Wu, H. Xu, J. Wang and C. Peng, Talanta, 74, 1020 (2008); doi:10.1016/j.talanta.2007.08.003.
N. Masqué, R.M. Marcé and F. Borrull, J. Chromatogr. A, 793, 257 (1998); doi:10.1016/S0021-9673(97)00936-9.
P.K. Jal, S. Patel and B.K. Mishra, Talanta, 62, 1005 (2004); doi:10.1016/j.talanta.2003.10.028.
J.A. Schwarz and C. Contescu, Surfaces of Nanoparticles and Porous Materials, Marcel-Dekker Inc., New York, vol. 78, p. 443 (1979).
K.K. Unger, Porous Silica, Journal of Chromatography Library, Elsevier Scientific Publishing Company, Amsterdam, vol. 16 (1979).
A. Safavi, N. Iranpoor, N. Saghir and S. Momeni, Anal. Chim. Acta, 569, 139 (2006); doi:10.1016/j.aca.2006.03.079.
O.Y. Nadzhafova, O.A. Zaporozhets, I.V. Rachinska, L.L. Fedorenko and N. Yusupov, Talanta, 67, 767 (2005); doi:10.1016/j.talanta.2005.04.002.
P.A. Kumar, M. Ray and S.J. Chakraborty, J. Hazard. Mater., 143, 24 (2007); doi:10.1016/j.jhazmat.2006.08.067.
X.Z. Wu, P. Liu, Q.S. Pu, Q.Y. Sun and Z.X. Su, Talanta, 62, 918 (2004); doi:10.1016/j.talanta.2003.10.011.
M. Zougagh, A. García de Torres, E. Vereda Alonso and J.M. Cano Pavón, Talanta, 62, 503 (2004); doi:10.1016/j.talanta.2003.08.033.
V.A. Lemos and L.O. dos Santos, Food Chem., 149, 203 (2014); doi:10.1016/j.foodchem.2013.10.109.
T. Madrakian, A. Afkhami, M.A. Zolfigol and M. Solgi, J. Hazard. Mater., 128, 67 (2006); doi:10.1016/j.jhazmat.2005.07.031.
S. Sadeghi and E. Sheikhzadeh, J. Hazard. Mater., 163, 861 (2009); doi:10.1016/j.jhazmat.2008.07.053.
R.K. Sharma, A. Puri, A. Kumar and A. Adholeya, J. Environ. Sci. (China), 25, 1252 (2013); doi:10.1016/S1001-0742(12)60173-9.
J.L. Foschiera, T.M. Pizzolato and E.V. Benvenutti, J. Braz. Chem. Soc., 12, 159 (2001); doi:10.1590/S0103-50532001000200006.
D. Barceló and M.-C. Hennion, Anal. Chim. Acta, 318, 1 (1995); doi:10.1016/0003-2670(95)00423-8.
C.P. Jaroniec, A.K. Gilpin and M. Jaroniec, J. Chromatogr. A, 797, 103 (1998); doi:10.1016/S0021-9673(97)01029-7.
I.M.M. Kenawy, M.A.H. Hafez, M.A. Akl and R.R. Lashein, Anal. Sci., 16, 493 (2000); doi:10.2116/analsci.16.493.
M.A. Akl, I.M. Kenawy and R.R. Lasheen, Microchem. J., 78, 143 (2004); doi:10.1016/j.microc.2004.03.019.
M. Kumar, Talanta, 51, 1187 (2000); doi:10.1016/S0039-9140(00)00295-2.