Abstract
Cyphos IL 105 (tetraalkylphosphonium dicyanamide) was immobilized in alginate capsules (IL vesicle entrapped in a biopolymer layer, as shown by SEM-EDX analysis). This material was tested for efficient Cd(II) sorption from HCl solutions. The concentration of HCl and chloride ions hardly influenced metal sorption that proceeds through ion exchange between Cd(II) (under the form of CdCl42−) and 2 dicyanamide groups. The sorption capacity (at saturation of the resin) proportionally increased with IL content (respecting the 1:2 stoichiometry between Cd(II) and the phosphonium cation). The uptake kinetics are well described by the Crank’s equation (resistance to intraparticle diffusion) and by the pseudo-second order rate equation (chemical reaction rate).
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
