The Arkansas People Participating in Lead Education (APPLE) Program is a collaborative effort between six Arkansas state, national and community organizations to provide lead awareness, training, and municipal legislation to needy communities in Arkansas. Under this program, APPLE organized and hosted well-designed, hands-on, and effective ‘‘call to action’’ lead awareness workshops fo…
Abstract. Porous clay heterostructures (PCHs) were synthesized from natural montmorillonite and vermiculite as well as synthetic saponite using the surfactant directed method. The direct synthesis of PCHs from saponite and montmorillonite was possible, while the pre-treatment of parent vermiculite with acids was necessary prior to the intercalation step. The PCH samples were characterized w…
Abstract Quantitative IR experiments were realized to determine the concentration of cobalt in a form of trivalent cations being in the oxide form as well as divalent ions in exchange positions, oxide-like clusters and cobalt oxide, present in a series of cobalt-exchanged zeolites. The first step of such quantitative studies was to elaborate the experimental conditions in which probe molecu…