6533b7d1fe1ef96bd125d833

RESEARCH PRODUCT

Halloysite Nanotube with Fluorinated Lumen: Non-Foaming Nanocontainer for Storage and Controlled Release of Oxygen in Aqueous Media

Stefana MiliotoGiuseppe LazzaraGiuseppe CavallaroGiovanni PalmisanoFilippo Parisi

subject

NanotubeMaterials sciencechemistry.chemical_elementengineering.materialSmart materialHalloysiteOxygenBiomaterialsCondensed Matter::Materials ScienceFluorinated surfactantColloid and Surface ChemistryHalloysite; nanoclay; Fluorinated surfactant; Gas solubilizationOrganic chemistryPhysics::Chemical PhysicsComputer Science::DatabasesSettore CHIM/02 - Chimica FisicaSupersaturationNanocontainerHalloysiteControlled releaseSurfaces Coatings and FilmsElectronic Optical and Magnetic MaterialsCondensed Matter::Soft Condensed MatternanoclaychemistryChemical engineeringengineeringGas solubilizationSelectivity

description

Halloysite clay nanotubes were selectivity modified by adsorbing perfluoroalkylated anionic surfactants at the inner surface. The modified nanotubes formed kinetically stable dispersions due to the enhanced electrostatic repulsions exercised between the particles. We proved that the modified nanotubes can be used as non-foaming oxygen nanocontainers in aqueous media. The gas release from supersaturated dispersions can be controlled by external stimuli and system composition. In conclusion, we managed to put forward an easy strategy to develop smart materials from natural nanoclays, which can endow important applications like the storage and delivery of gas.

yearjournalcountryeditionlanguage
2014-03-01
10.1016/j.jcis.2013.11.026http://hdl.handle.net/10447/85043