Aggregation of Halloysite Nanotubes in the Presence of Multivalent Ions and Ionic Liquids
Bojana Katana, Dóra Takács, Adél Szerlauth, Szilárd Sáringer, Gábor Varga, Andrej Jamnik, Félix D. Bobbink, Paul J. Dyson, István Szilágyi
Abstract
was the most effective in the destabilization of the colloids. For h-HNT-IP-2 with a positive surface charge, no specific interaction was observed between the salt and the IL constituent cations and the particles, i.e., the determined charge and aggregation parameters were the same within experimental error, irrespective of the type of co-ions. These results clearly indicate the relevance of ion adsorption in the colloidal stability of the nanotubes and thus provide useful information for further design of processable h-HNT dispersions.
Topics & Concepts
Ionic liquidChemistryHalloysiteAdsorptionIonSurface chargeCounterionColloidInorganic chemistryAlkali metalMetalChemical engineeringOrganic chemistryPhysical chemistryCatalysisEngineeringClay minerals and soil interactionsIron oxide chemistry and applicationsLayered Double Hydroxides Synthesis and Applications