References

1. B. Dhal, H.N. Thatoi, N.N. Das, B.D. Pandey, Chemical and microbial remediation of hexavalent chromium from contaminated soil and mining/metallurgical solid waste: A review, J. Hazard. Mater., 250–251 (2013) 272–291.
2. A. Kara, E. Demirbel, N. Tekin, B. Osman, N. Beşirli, Magnetic vinylphenyl boronic acid microparticles for Cr(VI) adsorption: kinetic, isotherm and thermodynamic studies, J. Hazard. Mater., 286 (2015) 612–623.
3. B. Leśniewska, B.G. Żyłkiewicz, A.Z. Wilczewska, Separation and preconcentration of trace amounts of Cr(III) ions on ion imprinted polymer for atomic absorption determinations in surface water and sewage samples, Microchem. J., 105 (2012) 88–93.
4. J. Kotaś, Z. Stasicka, Chromium occurrence in the environment and methods of its speciation, Environ. Pollut., 107 (2000) 263–283.
5. A.J. Jafari, S. Golbaz, R.R. Kalantary, Treatment of hexavalent chromium by using a combined Fenton and chemical precipitation process, J. Water Reuse Desal., 3 (2013) 373–380.
6. H. Mihçiokur, ìbrahim Peker, Batch study and kinetics of hexavalent chromium removal from aqueous solutions by anion exchange resin (Dowex 21 KCl), Desal. Water Treat., 51 (2013) 2116–2120.
7. P. Shah, C.N. Murthy, Studies on the porosity control of MWCNT/polysulfone composite membrane and its effect on metal removal, J. Membr. Sci., 437 (2013) 90–98.
8. N.N. Thinh, P.T.B. Hanh, T.T.H. Le, N.A. Le, T.V. Hoang, V.D. Hoang, H.D. Le, N.V. Khoi, T.D. Lam, Magnetic chitosan nanoparticles for removal of Cr(VI) from aqueous solution, Mat. Sci. Eng. C, 33 (2013) 1214–1218.
9. P. Thamilarasu, K. Karunakaran, Kinetic, equilibrium and thermodynamic studies on removal of Cr(VI) by activated carbon prepared from Ricinus communis seed shell, Can. J. Chem. Eng., 91 (2013) 9–18.
10. X. Lv, J. Xu, G. Jiang, X. Xu, Removal of chromium(VI) from wastewater by nanoscale zero-valent iron particles supported on multiwalled carbon nanotubes, Chemosphere, 85 (2011) 1204–1209.
11. L. Li, F. Zhu, Y. Lu, J. Guan, Synthesis, adsorption and selectivity of inverse emulsion Cd(II) imprinted polymers, Chinese J. Chem. Eng., in press.
12. H.T. Fan, Y. Lu, A.J. Liu, B. Jiang, H. Shen, C. Huang, W.X. Li, A method for measurement of free cadmium species in waters using diffusive gradients in thin films technique with an ion-imprinted sorbent, Anal. Chimi. Acta, 897 (2015) 24–33.
13. G. Bayramoglu, M. Yakup Arica, Synthesis of Cr( VI)-imprinted poly(4-vinyl pyridine-co-hydroxyethyl methacrylate) particles: Its adsorption propensity to Cr(VI), J. Hazard. Mater., 187 (2011) 213–221.
14. V. Pakade, E. Cukrowska, J. Darkwa, N. Torto, L. Chimuka, Selective removal of chromium (VI) from sulphates and other metal anions using an ion-imprinted polymer, Water SA, 37 (2011) 529–537.
15. A. Nastasović, Z. Sandić, Lj. Suručić, D. Maksin, D. Jakovljević, A. Onjia, Kinetics of hexavalent chromium sorption on amino-functionalized macroporous glycidyl methacrylate copolymer, J. Hazard. Mater., 271 (2009) 153–159.
16. Q.F. An, J.B. Gao, Adsorption characteristics of Cr(III) ionic imprinting polyamine on silica gel surface, Desalination, 249 (2009) 1390–1396.
17. F. Zhu, Y. Lu, L. Li, Synthesis, adsorption kinetics and thermodynamics of ureido-functionalized Pb(II) surface imprinted polymers for selective removal of Pb(II) in wastewater, RSC Adv., 6 (2016) 111–120.
18. Y. Li, B. Gao, R. Du, Studies on Preparation and Recognition Characteristic of Surface-Ion Imprinting Material IIP-PEI/ SiO2 of Chromate Anion, Separ. Sci. Technol., 46 (2011) 1472–1481.
19. Y. Liu, X. Meng, J. Han, Z. Liu, M. Meng, Y. Wang, R. Chen, S. Tian, Speciation, adsorption and determination of chromium( III) and chromium(VI) on a mesoporous surface imprinted polymer adsorbent by combining inductively coupled plasma atomic emission spectrometry and UV spectrophotometry, J. Sep. Sci., 36(2013) 3949–3957.
20. M. Yiğitoğlu, M. Arslan, selective removal of Cr(VI) anions from aqueous solutions including Cr(VI), Cu(II) and Cd(II) ions by 4-vinly pyridine/2-hydroxyethylmethacrylate monomer mixture grafted poly(ethylene terephthalate) fiber, J. Hazard. Mater., 166 (2009) 435–444.
21. Y. Hong, Z. Zhong, Kinetics of adsorption of Zn2+ on imprinted chitosan polymer, Chem. Indust. Eng. Pro., 2011 (30) 1290−1301.
22. D.K. Singh, S. Mishra, Synthesis and characterization of Hg(II)-ion-imprinted polymer: Kinetic and isotherm studies, Desalination, 257 (2010) 177–183.
23. Y.S. Ho, G. McKay, Pseudo-second-order model for sorption processes, Process Biochem., 34 (1999) 451–465.
24. Y.S. Ho, J.C.Y. Ng, G. McKay, Kinetics of pollutant sorption by biosorbents: review. Sep. Purif. Methods, 29 (2000) 189−232.
25. Z. Ren, D. Kong, K. Wang, W. Zhang, Preparation and adsorption characteristics of an imprinted polymer for selective removal of Cr(VI) ions from aqueous solutions, J. Mater. Chem. A., 2(42) (2014) 17952–17961.
26. H.T. Fan, W. Sun, B. Jiang, Q. Wang, D. Li, C. Huang, K. Wang, Z. Zhang, W. Li, Adsorption of antimony(III) from aqueous solution by mercapto-functionalized silica-supported organic–inorganic hybrid sorbent: Mechanism insights, Chem. Eng. J., 286 (2016) 128–138.