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The paper presents the studies regarding the impregnation of Florisil with Cyphos IL-101 using a new method of impregnation instead of the classic methods: the ultrasonication. In order to determine the efficiency of the ultrasonication methods of impregnation, the work conditions were varied, and the obtained supported ionic liquids were characterized through scanning electron microscopy (SEM), energy dispersive XRay analysis (EDX) and FTIR- Fourier transform infrared spectroscopy. From the experimental data was observed that only the amplitude of ultrasonication had a significant influence onto the impregnation process efficiency. The impregnated material obtained in the optimum conditions showed good adsorption performance in the removal process of Cs + developing a maximum adsorption capacity of 2.95 mg/g. Index Terms—Ultrasonication, impregnation, ionic liquid, Cs + adsorption. The impregnation of a solid support, with various functionalized groups in order to enhance its adsorbent properties and selectivity, is a new trend in the removal process of various metals ions from aqueous solutions. In this way were developed four methods for the impregnation of the desired extractant into a solid support: the dry method, wet method, modifier addition method and dynamic column method (1)-(6). Instead of the traditional methods mentioned in the specialty literature for the impregnation of a solid support, we studied in this paper, the impregnation through ultrasonication. Due to their superior characteristic compared to organic extractants, the use of ionic liquids reached a higher attention, in special in the removal process of radionuclides from aqueous solutions (7)-(11). The immobilization of the ionic liquids in a suitable solid support prevents the drawbacks of the liquid-liquid extraction like: the loss of the ionic liquid in water and a possible ion-exchange occurrence between the metal ion and the ionic-liquids cation (12)-(15). Therefore the studies regarding the ultrasonication method of impregnation were realized for the system Cyphos IL-101 onto Florisil. We focused on this ionic liquid due to its commercial availability and low price, and also because in our

Studies Regarding the Florisil Impregnation with Ionic Liquid through Ultrasonication