6533b836fe1ef96bd12a13b9

RESEARCH PRODUCT

Physico-chemical investigation of nanostructures in liquid phases: Nickel chloride ionic clusters confined in sodium bis(2-ethylhexyl) sulfosuccinate reverse micelles

Gaetano Di MarcoVincenzo Turco LiveriAngela RuggirelloPietro Calandra

subject

chemistry.chemical_classificationChemistrySodiumInorganic chemistrychemistry.chemical_elementSalt (chemistry)ChlorideMicelleSurfaces Coatings and FilmsElectronic Optical and Magnetic MaterialsBiomaterialsNickelColloid and Surface ChemistryPulmonary surfactantMonolayermedicineMoleculereverse micelles nanoparticlesmedicine.drug

description

The confinement of finite amounts of nickel chloride in the hydrophilic core of sodium bis(2-ethylhexyl) sulfosuccinate (AOT) reverse micelles dispersed in n-heptane has been investigated by FT-IR, UV-vis-NIR and fluorescence spectroscopies. The analysis of experimental data consistently leads to hypothesize that NiCl(2) forms small size ionic clusters stabilized by a monolayer of oriented surfactant molecules. Due to confinement and interfacial effects, these ionic clusters show peculiar photophysical properties, which are different from those possessed by the bulk material. From NiCl(2)/AOT/n-heptane solutions, by evaporation of the organic solvent, interesting salt/surfactant nanocomposites at various salt concentrations have been prepared and characterised by WAXS. On the other hand, after mix with Na(2)S-containing dry micellar systems, the formation of NiS nanoparticles have been ascertained by UV-vis spectroscopy.

yearjournalcountryeditionlanguage
2009-01-01Journal of Colloid and Interface Science
https://doi.org/10.1016/j.jcis.2009.03.066