title: Hematite and hematite-akageneite composites. XRD and electrokinetic study and interaction with ionic surfactants.
abstract: Hematite and hematite-akageneite composites were obtained by hydrolysis of FeCl3 in acidic medium. The IEP of hematite and of hematite-akageneite composites was at pH about 9. The particle radius of primary hematite particles was about 50nm and the primary particles of hematite-akageneite composites were larger and porous. Addition of SDS to dispersions containing hematite or hematite-akageneite composites resulted in substantial increase in the particle size.
authors.affiliation: Lublin University of Technology, Laboratory of Electrochemistry, Nadbystrzycka 38, 20 618 Lublin, Poland.
authors.forename: Edward
authors.initials: E
authors.lastname: Mączka
authors.affiliation: Lublin University of Technology, Laboratory of Electrochemistry, Nadbystrzycka 38, 20 618 Lublin, Poland. Electronic address: m.kosmulski@pollub.pl.
authors.forename: Marek
authors.initials: M
authors.lastname: Kosmulski
keywords: Aggregation; Electrophoretic mobility; Ionic surfactant; Specific adsorption