Hematite and hematite-akageneite composites. XRD and electrokinetic study and interaction with ionic surfactants

Edward Mączka; Marek Kosmulski

doi:10.1016/j.jcis.2015.07.050

Hematite and hematite-akageneite composites. XRD and electrokinetic study and interaction with ionic surfactants

J Colloid Interface Sci. 2015 Nov 15:458:130-5. doi: 10.1016/j.jcis.2015.07.050. Epub 2015 Jul 22.

Authors

Edward Mączka¹, Marek Kosmulski²

Affiliations

¹ Lublin University of Technology, Laboratory of Electrochemistry, Nadbystrzycka 38, 20 618 Lublin, Poland.
² Lublin University of Technology, Laboratory of Electrochemistry, Nadbystrzycka 38, 20 618 Lublin, Poland. Electronic address: m.kosmulski@pollub.pl.

PMID: 26210916
DOI: 10.1016/j.jcis.2015.07.050

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.

Keywords: Aggregation; Electrophoretic mobility; Ionic surfactant; Specific adsorption.