Abstract
We combined surface imprinting technique with sol-gel process for preparing a new iron(III)-imprinted thiocyanato-functionalized silica gel sorbent using 3-thiocyanatopropyltriethoxysilane as the functional monomer, and epichlorohydrin as the cross-linking agent for the selective removal of iron(III) from aqueous solution. The iron(III)-imprinted thiocyanato-functionalized silica gel was characterized by FT-IR spectra, SEM, and the static adsorptiondesorption method. Maximum binding capacity, optimum pH, and equilibrium binding time were found to be 20.31 mg·g−1, pH 4.2, and 20min, respectively. The relative selectivity coefficients of Fe(III)-imprinted thiocyanato-functionalized silica gel sorbents for Fe(III)/Ni(II), Fe(III)/Co(II), Fe(III)/Cd(II) and Fe(III)/Pb(II) were 11.8, 10.6, 8.2 and 9.1 times greater than the non-imprinted silica gel, respectively. The iron(III)-imprinted thiocyanato-functionalized silica gel sorbents could be used repeatedly without decreasing in their adsorption capacities significantly.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
K.G. Bhattacharyya and S. S. Gupta, Adsorption, 12, 185 (2006).
United States Environmental Protection Agency (USEPA), Drinking Water Standards and Health Advisories (2000).
B.-Y. Cho, Process. Biochem., 40, 3314 (2005).
J. Pavlović, S. Stopić, B. Friedrich and Z. Kamberović, Environ. Sci. Pollut. Res., 14, 518 (2007).
S. Vasudevan, J. Jayaraj, J. Lakshmi and G. Sozhan, Korean J. Chem. Eng., 26, 1058 (2009).
V. M. Palacios, I. Caro and L. Pérez, Adsorption, 7, 131 (2001).
B. Das, P. Azarika, G. Saikia, H. Kalita, D. C. Goswami, H.B. Das, S. N. Dube and R. K. Dutt, J. Hazard. Mater., 141, 834 (2007).
G. Wulff, Angew. Chem. Int. Ed. Engl., 34, 1812 (1995).
T. P. Rao, S. Daniel and J. M. Gladis, Trends Anal. Chem., 23, 28 (2004).
T. P. Rao, R. Kala and S. Daniel, Anal. Chim. Acta, 578, 105 (2006).
C. J. Tan and Y.W. Tong, Anal. Bioanal. Chem., 389, 369 (2007).
G.-Z. Fang, J. Tan and X.-P. Yan, Anal. Chem., 77, 1734 (2005).
X. Chang, N. Jiang, H. Zheng, Q. He, Z. Hu, Y. Zhai and Y. Cui, Talanta, 71, 38 (2007).
M. Karabörk, A. Ersöz, A. Denizli and R. Say, Ind. Eng. Chem. Res., 47, 2258 (2008).
G. S. Owens, G. E. Southard, K. A. van Houten and G. M. Murray, Sep. Sci. Technol., 40, 2205 (2005).
A. L. P. Silva, K. S. Sousab, A. F. S. Germano, V.V. Oliveira, J.G. P. Espinola, M. G. Fonseca, C. Airoldi, T. Arakakic and L. N. H. Arakakia, Colloids Surf. A, 332, 144 (2009).
H. Cheradame, C. Descours-Michallet and F. J. Chen, Makromol. Chem., Rapid Commun., 13, 433 (1992).
B. D. Grishchuk, N.G. Prodanchuk, V.G. Sinchenko, P.M. Gorbovoi and E. Ya. Kudrik, Pharm. Chem. J., 28, 657 (1994).
L. Bois, A. Bonhommé, A. Ribes, B. Pais, G. Raffin and F. Tessier, Colloids Surf. A, 221, 221 (2003).
Y.-K. Lu and X.-P. Yan, Anal. Chem., 76, 453 (2004).
S. Lagergren, Kungliga Svenska Vetensk. Handl., 24, 1 (1898).
Y. S. Ho and G. McKay, Process. Biochem., 34, 451 (1999).
I. Langmuir, J. Am. Chem. Soc., 40, 1361 (1918).
H.M. F. Freundlich, Z. Phys. Chem., 57, 385 (1906).
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Fan, HT., Sun, T. Selective removal of iron from aqueous solution using ion imprinted thiocyanato-functionalized silica gel sorbents. Korean J. Chem. Eng. 29, 798–803 (2012). https://doi.org/10.1007/s11814-011-0234-y
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s11814-011-0234-y