1Department of Chemistry, Islamic Azad University, Central Tehran Branch, Tehran, I.R. IRAN
2Department of Chemistry, Islamic Azad University, Varamin (Pishva) Branch, Varamin, I.R. IRAN
3Department of Chemistry, K.N. Toosi University of Technology, Tehran, I.R. IRAN
In this study, aniline-formaldehyde polymer was synthesized and then modified with extra aniline as cross-linker in the presence and absence of Ni(II) as the template to produce Ion Imprinted Poly(Aniline-Formaldehyde) (IIPAF) and Non Imprinted Poly(Aniline-Formaldehyde)(NIPAF) The IIPAF was subjected to adsorption, preconcentration and determination of Ni(II) ion in environmental samples. The effect of pH, contact time, interfering ions and other parameters on adsorption of Ni(II) was investigated.The optimum pH was found to be 8.0 with a recovery of 97.5%. Elution was performed with 0.5 M nitric acid. The sorption polymer capacity was found to be 59.4 mg.g-1. The concentration of the metal ion was detected with flame atomic adsorption spectrometry.The prepared ion imprinted sorbent showed high adsorption capacity, significant selectivity, good site accessibility and fast binding kinetics for Ni(II) ion. Scatchard analysis revealed that the homogeneous binding sites were formed in the polymers. The equilibrium adsorption data of Ni (II) on synthetic polymer were analyzed by Langmuir, Freundlich and Temkin models. The method was successfully applied for determination of Ni(II) ions in environmental water sample.
1] Azevedo Lemos V., Gonçalves da Silva D., Lago de Carvalho A., de Andrade Santana D., Dos Santos Novaes G., Souza dos Passos A., Synthesis of Amberlite XAD-2-PC Resin for Preconcentration and Determination of Trace Elements in Food Samples by Flame Atomic Absorption Spectrometry. Microchem. J.,84, p. 14 (2006).
 Camel V., Solid Phase Extraction of Trace Elements, Spectrochim. Acta Part B,58, p. 1177 (2003).
 Ivanov A.E., Eccles J., Ahmad Panahi H., Kumar A., Kuzimenkova M.V., Nilsson L., Bergenståhl B., Long N., Phillips G.J., Mikhalovsky S.V., Galaev I.Y., Mattiasson B., Boronate-Containing Polymer Brushes: Characterization, Interaction with Saccharides and Mammalian Cancer Cells, J. Biomed. Mater. Res. Part A,88 (1), p. 213 (2009).
 Ahmad Panahi H., Morshedian J., Mehmandost N., Moniri E., Galaev I.Y., Grafting of Poly[1- (N,N-bis-Carboxymethyl)Amino -3- Allylglycerol- Odimethylacrylamide] Copolymer onto Siliceous Support for Preconcentration and Determination of Lead (II) in Human Plasma and Environmental Samples, J. Chromatogr. A, 1217, 5165 (2010).
 Ahmad Panahi H., Sid Kalal H., Moniri E., Nikpour Nezhati M., Taheri Menderjani M., Ranjbar Kelahrodi S., Mahmoudi F., Amberlite XAD-4 Functionalized with m-Phenylendiamine: Synthesis, Characterization and Applications as Extractant for Preconcentration and Determination of Rhodium (III) in Water Samples by Inductive Couple Plasma Atomic Emission Spectroscopy (ICP-AES), Microchem. J.93, p. 49 (2009).
 Hashemi-Moghaddam H., Ahmad Panahi H., Nikpour Nezhati M., Synthesis and Application of New Resin Functionalized by Brilliant Green for Spectrophotometric Determination of Mercury in Environmental Samples, Anal. Lett., 42, p. 1 (2009).
 Saito K., TaninakaI., Yamamoto Y., Murakami S., Muromatsu A., Liquid-Liquid Extraction of Platinum(II) with Cyclic Tetrathioethers, Talanta,51, p. 913 (2000).
 Alguacil F.J., Adeva P., Alonso M., Processing of Residual Gold (III) Solutions via Ion Exchange, Gold Bull, 38, p. 9 (2005).
 Prasad K., Gopikrishna P., Kala R., Rao T.P., Naidu G.R.K., Solid Phase Extraction vis-`a-vis Coprecipitation Preconcentration of Cadmium and Lead from Soils onto 5,7-Dibromoquinoline-8-ol Embedded Benzophenone and Determination by FAAS, Talanta, 69,p. 938 (2006).
 Kagaya S., Sagisaka T., Miwa S., Morioka K., Hasegawa K., Rapid Coprecipitation Technique with Hybrid Hydroxide System Using Rapid Coprecipitation for Simultaneous Concentration Ytterbium (III), Gallium (III), and Magnesium (II) Prior to Their Inductively Coupled Plasma Atomic Emission Spectrometric Determination, Bull. Chem. Soc. Jpn.,79(5), p. 717 (2006).
 Karatepe A.U., Soylak M., Elci L., Separation/ Preconcentration of Cu(II), Fe(III), Pb(II), Co(II) and Cr(III) in Aqueous Samples on Cellulose Nitrate Membrane Filter and Their Determination by Atomic Absorption Spectrometry, Anal. Lett.,35, p. 1561 (2002).
 Sombra L., Luconi M., Silva M.F., Olsina R.A., Fernandez L., Spectrophotometric Determination of Trace Aluminium Content in Parenteral Solutions by Combined Cloud Point Preconcentration-Flow Injection Analysis, The Analyst, 126(7), p. 1172 (2001).
 Zhang Y., Luo W.H., Li H., Determination of Trace Cobalt in Water Samples by Graphite Furnace Atomic Absorption Spectrometry after Cloud Ppoint, Spectrosc. Spect. Anal.,25, p. 576 (2005).
 Nilforoushan M.R., Otroj S., Absorption of Lead Ions by Various Types of Steel Slag, Iran. J. Chem. Chem. Eng., 27(3),p. 69 (2008).
 Ghazy Sh. E., Ragab A.H., Removal of Lead Ions from Aqueous Solution by Sorptive-Flotation Using Limestone and Oleic Acid, Iran. J. Chem. Chem. Eng.,26(4), p. 83 (2007).
 Albino Kumar P., Ray M., Chakraborty S., Hexavalent Chromium Removal from Wastewater using Aniline Formaldehyde Condensate Coated Silica Gel, J. Hazard. Mater.,143, p. 24 (2007).
 Liu G., Freund M.S., New Approach for the Controlled Cross-Linking of Polyaniline: Synthesis and Characterization, Macromol.,30, p. 5660 (1997).
 Langmuir L., The Adsorption of Gases on Plane Surfaces of Glass Mica and Platinum, J. Am. Chem. Soc.,40, p. 1361 (1918).
 Hall K.L., Eagleton L.C., Acrivos A., Vermeulen T., Pore and Solid-Diffusion Kinetics in Fixed Bed Adsorption Under Constant Pattern Conditions, Ind. Eng. Chem. Fundam.,5, p. 212 (1966).
 Frendlich H.M.A., Concerning Adsorption in Solutions, J. Phys. Chem.,57, p. 385 (1906).
 Ohta K., Ishida K., Itoh S., Kaneco S., Mizuno T.,Determination of Nickel in Water by Electrothermal Atomic Absorption Spectrometry with Preconcentration on a Tungsten Foil, Mikrochim. Acta, 129, p. 127 (1998).
 Tokman N., Akman S., Bakircioglu Y., Preconcentration of Nickel and Cobalt Prior to Their Determination by Graphite Furnace Atomic Absorption Spectrometry Using the Water-Soluble Polymer Poly(Vinyl Pyrrolidinone), Mikrochim. Acta,146, p. 31 (2004).
 Taher M.A., Balani S.,Trace Amounts of Nickel After Preconcentration with [1-(2-Pyridylazo)-2-Naphthol]-Naphthalene Adsorbent or after Adsorption of its Complex on Microcrystalline Naphthalene, J. Anal. Chem.,55(10), p. 972 (2000).
 Gordeeva V.P., Statkus M.A., Sorokina N.M., Tsizin G.I., Zolotov Y.A., X-Ray Fluorescence Determination of Heavy Metals in Solutionsafter the Preconcentration of Their Pyrrolidinedithiocarbamate Complexes on Cellulose Filters, J. Anal. Chem.,57(8), p. 701 (2002).
 Matsumiya H., Iki N., Miyano S., Hiraide M., Preconcentration of Copper, Cadmium, and Lead with a ThiacalixArenetetrasulfonate-Loaded Sephadex A-25 Anion-Exchanger for Graphite-Furnace Atomic-Absorption Spectrometry, Anal. Bioanal. Chem.,379, p. 867 (2004).
 Shemirani F., AbkenarS.D., Preconcentration and Determination of Trace Nickel Using 1-(2-Pyridylazo)-2-Naphtol (PAN) Immobilized on Surfactant-Coated Alumina, J. Anal.Chem.,59(4), p. 327 (2004).
 Sabarudin A., Noguchi O., Oshima M., Higuchi K., Motomizu S., Application of Chitosan Functionalized with 3,4-Dihydroxy Benzoic Acid Moiety for On-Line Preconcentration and Determination of Trace Elements in Water Samples, Mikrochim. Acta,159, p. 341 (2007).