Abstract
Interactions of ethylamine from aqueous solutions on SilSM [thiol-modified silica gel containing complexed cations, where M=Ag(I), Hg(II), Zn(II), Cu(II) and Ni(II)] have been investigated. Using an isoperibolic calorimetric titration technique, the enthalpies evolved at different surface coverages were obtained with the corresponding interacting amount of ethylamine ( n int(i)) determined by using an isothermal calorimetric titration technique, specially developed for this purpose. The maximum capacities of interaction ( N s), molar enthalpies of interactions at different surface coverages (Δ int(i) H m) and molar integral enthalpies of interaction for a monolayer (Δ mon H m) have been determined. The Δ mon H m values, taking into account the investigation of the interaction strengths between ethylamine and SilSM, suggest that the Pearson concept is the predominant mechanism in the behavior of the SilSM/amine adsorption processes. It is shown that the Δ int(i) H m values are not constant with the surface coverage, thus the general tendency found earlier has been confirmed.
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 callMore From: Colloids and Surfaces A: Physicochemical and Engineering Aspects
Disclaimer: 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.
