Nilay Gizli, Merve Arabacı
803 212


In this study, supported ionic liquid phase (SILP) adsorbents prepared by immobilizing the ionic liquids (ILs) onto  nanosilica and styrene-divinylbenzene copolymer (SDVB) particles have been examined for the removal of hexavalent chromium, Cr(VI) ions from aqueous solutions. Three types of ionic liquids such as tricapryl methyl ammonium nitrate [A336][NO3], tricapryl methyl ammonium chloride (Aliquat® 336) and 1-ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide (EMIMTf2N) were successfully impregnated onto solid supports by following physical impregnation method through ultrasonication. Therefore, the advantages of ionic liquids are combined with the properties of solid supports. The structural and morphological characterizations of the adsorbents were investigated by FTIR, SEM, and BET analysis. The thermal stability of the ionic liquid impregnated solid particles was also characterized by TGA analysis. Metal sorption performances of the prepared sorbents have been investigated by considering Cr(VI)  ions sorption regarding with the thermodynamic and kinetic aspects. Optimum conditions for the removal of Cr(VI) ions from aqueous solutions were determined by series of batch sorption studies. Maximum adsorption yield was obtained for all prepared adsorbent having the imregnation ratio of 1 g-ionic liquid/g-support. Moreover, the removal percentages of chromium ions were found to be 99.53%, 99.50% and 100% for TT600-TS, MOX80-TS and XAD-A , respectively. Sorption isotherms were also fitted with Langmuir equation and they were exhibited favorable sorption behavior.

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Aydin H, Bulut Y, Yerlikaya Ç. Removal of copper (II) from aqueous solution by adsorption onto low-cost adsorbents. J Environ Manage. 2008;87(1):37–45.

Ahmad A, Siddique JA, Laskar MA, Kumar R, Mohd-setapar SH, Khatoon A, et al. New generation Amberlite XAD resin for the removal of metal ions : A review. J Environ Sci. 2015;31:104–23.

Gizli N, Arabacı M. Enhanced Sorption of Cu (II) Ions from Aqueous Solution by Ionic Liquid Impregnated Nano-silica And Nano-alumina Particles. Chem Ind Chem Eng Q J. 2016;

Hauman, M., Schönweiz, A., Breitzk, H., Buntkowsky, G., Werner, S. and Szesni N. Supported Ionic Liquids: Fundamentals and Applications. Chem Eng Technol. 2012;35:1421.

Liu JF, Jiang G Bin, Jönsson JÅ. Application of ionic liquids in analytical chemistry. Trends Anal Chem. 2005;24(1):20–7.

Fontanals N, Borrull F, Marcé RM. Ionic liquids in solid-phase extraction. Trends Anal Chem. 2012;41:15–26.

Zapp E, Brondani D, Vieira IC, Scheeren CW, Dupont J, Barbosa AMJ, et al. Biomonitoring of methomyl pesticide by laccase inhibition on sensor containing platinum nanoparticles in ionic liquid phase supported in montmorillonite. Sensors Actuators, B Chem. 2011;155(1):331–9.

Al-bishri HM, Abdel-Fattah TM, Mahmoud ME. Immobilization of [Bmim +Tf 2N -] hydrophobic ionic liquid on nano-silica-amine sorbent for implementation in solid phase extraction and removal of lead. J Ind Eng Chem. 2012;18(4):1252–7.

Lupa L, Negrea A, Ciopec M, Negrea P, Vodă R. Ionic liquids impregnated onto inorganic support used for thallium adsorption from aqueous solutions. Sep Purif Technol. 2015;155:75–82.

Lupa L, Popa A, Dragan ES, Ciopec M, Negrea A, Negrea P. Adsorption performance of the organic solid support impregnated with ionic liquid in the removal process of Tl(I) from aqueous solutions. Process Saf Environ Prot. Institution of Chemical Engineers; 2016;(I):1–7.

Navarro R, Ruiz P, Saucedo I, Guibal E. Bismuth(III) recovery from hydrochloric acid solutions using Amberlite XAD-7 impregnated with a tetraalkylphosphonium ionic liquid. Sep Purif Technol. 2014;135:268–77.

Kalidhasan S, Santhana Krishna Kumar A, Vidya Rajesh, Rajesh N. An efficient ultrasound assisted approach for the impregnation of room temperature ionic liquid onto Dowex 1x8 resin matrix and its application toward the enhanced adsorption of chromium (VI). J Hazard Mater. 2012;213–214:249–57.

Kabay N, Cortina JL, Trochimczuk A, Streat M. Solvent-impregnated resins (SIRs) - Methods of preparation and their applications. React Funct Polym. 2010;70(8):484–96.

Afkhami A, Saber-Tehrani M, Bagheri H. Simultaneous removal of heavy-metal ions in wastewater samples using nano-alumina modified with 2,4-dinitrophenylhydrazine. J Hazard Mater. 2010;181(1–3):836–44.

Mahmoud ME, Al-Bishri HM. Supported hydrophobic ionic liquid on nano-silica for adsorption of lead. Chem Eng J. 2011;166(1):157–67.

J. Turk. Chem. Soc., Sect. B: Chem. Eng.