Cs+ Removal from Aqueous Solutions through Adsorption onto Florisil® Impregnated with Trihexyl(tetradecyl)phosphonium Chloride

Molecules

Lavinia Lupa²  Adina Negrea²  Mihaela Ciopec¹ 

[1] “Politehnica” University of Timisoara, Faculty of Industrial Chemistry and Environmental Engineering Blvd. Vasile Parvan no. 6, Timisoara 300223, Romania;

关键词: Cs⁺ adsorption;    trihexyl(tetradecyl)phosphonium chloride;    Florisil^®;   

DOI  :  10.3390/molecules181012845

来源: mdpi

【 摘 要 】

This research determined the adsorption performance of Florisil^® impregnated with trihexyl(tetradecyl)phosphonium chloride (Cyphos IL-101) in the process of Cs⁺ removal from aqueous solutions. The obtained Florisil^® impregnated with the studied ionic liquid was characterized through energy dispersive X-ray analysis and Fourier transform infrared spectroscopy in order to verify that the impregnation with the ionic liquid had occurred. The adsorption process has been investigated as a function of pH, solid:liquid ratio, adsorbate concentration, contact time and temperature. The isotherm data was well described by a Langmuir isotherm model. The maximum adsorption capacities of the Florisil^® impregnated with the studied ionic liquid was found to be 3.086 mg Cs⁺/g of adsorbent. The results indicated that the adsorption fitted well with the pseudo-second order kinetic model.

【 授权许可】

CC BY   
© 2013 by the authors; licensee MDPI, Basel, Switzerland.