Jongsik Kim
From Grey Lab Page
My research interests are focused on colloid and interface science, especially adsorptions of environmentally important species (Na, Cs, P, As, and etc.) on the surfaces of iron oxyhydroxides, α, β, and γ-FeOOHs. Recently, lithium and phosphate have been our target species. Li+ can be a good model for small cations such as Ag2+ and Na+. Phosphate is also meaningful in a variety of disciplines including soil fertility, eutrophication, corrosion control, and so on. In addition, phosphate can be a model for transportation of As anions in our surroundings. Although solid state nmr technique is very challenging in the iron-containing system, it is still useful to study local environments of the adsorbed species on their surface like surface binding modes and reactive sites of the surfaces.
A well-established paramagnetic shift scale could be used to assign monodentate or bidentate adsorption of Li onto a particular FeOOH surface (click to enlarge).
