Lee D. Wilson
University of Saskatchewan, Canada
Title: Heterogeneous Kinetic Uptake Studies of Conventional and NanoMaterials in Solution
Biography
Biography: Lee D. Wilson
Abstract
Challenges exist for the study of time dependent sorption processes for heterogeneous systems; especially in the case of dispersed nanomaterials in solvents or solutions because they are not well suited to conventional batch kinetic experiments. In this study, a comparison of batch versus two types of one-pot configurations were studied to evaluate the kinetic uptake properties in heterogeneous (solid/ solution) systems: i) conventional batch method, ii) one-pot system with dispersed adsorbent in solution within a barrier for in situ sampling, and iii) one-pot system with an adsorbent confined inside a barrier with ex situ sampling. The sorbent systems evaluated herein include several cyclodextrin-based polymers and carbonaceous materials with variable types of dye probes. The one-pot kinetics method with in situ (method ii) or ex situ (method iii) sampling described herein offers significant advantages for the study of heterogeneous sorption kinetics of highly dispersed sorbent materials with particles sizes that range across the micron to nanometer scale. The method described herein will contribute positively to the development of advanced studies for heterogeneous sorption processes where and understanding of the relative uptake properties is required at variable experimental conditions. The one-pot method offers key advantages for the study of conventional polymers to specialized nanomaterials for the study of heterogeneous sorption-based processes.