Search results for "Surface charge propertie"

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Biopolymer-Targeted Adsorption onto Halloysite Nanotubes in Aqueous Media.

2017

Studies on the adsorption of biopolymers onto halloysite nanotubes (HNTs) in water were conducted. Three polymers with different charges-anionic (pectin), neutral (hydroxypropyl cellulose), and cationic (chitosan)-were chosen. The thermodynamic parameters for the adsorption of polymers onto the HNT surface were determined by isothermal titration calorimetry (ITC). The experimental data were interpreted based on a Langmuir adsorption model. The standard variations in free energy, enthalpy, and entropy of the process were obtained and discussed. Turbidimetry was used to evaluate the stability of functionalized nanoparticles in water. The ζ-potential clarified the surface charge properties of …

Materials scienceBiopolymerFunctionalized nanotube02 engineering and technologyengineering.materialHydroxypropyl cellulose010402 general chemistry01 natural sciencesHalloysitechemistry.chemical_compoundsymbols.namesakeAdsorptionEnthalpyKaoliniteLangmuir adsorption modelPolymer chemistryElectrochemistryHalloysite nanotube (HNTs)General Materials ScienceSurface chargeFree energyPolymerSpectroscopyYarn Functionalized nanoparticleHydroxypropyl celluloseLangmuir adsorption modelWaterIsothermal titration calorimetrySurfaces and InterfacesPolymer adsorptionThermal Propertie021001 nanoscience & nanotechnologyCondensed Matter PhysicsPectin0104 chemical sciencesBiomoleculeNanotubechemistryChemical engineeringengineeringsymbolsIsothermal titration calorimetryBiopolymerAdsorption0210 nano-technologySurface charge propertieThermodynamic parameter Polymers ChitosanLangmuir : the ACS journal of surfaces and colloids
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