Preparation and mechanism of formation of acicular goethite–magnetite particles by decomposition of ferric and ferrous salts in aqueous solution using microwave radiation

Autor: Gavin Whittaker, Andrew Harrison, Lijuan Song, Guihua Wang
Rok vydání: 1998
Předmět:
Zdroj: Materials Research Bulletin. 33:1571-1579
ISSN: 0025-5408
DOI: 10.1016/s0025-5408(98)00168-8
Popis: Acicular geothite–magnetite particles were prepared directly by microwave-driven hydrolysis of an aqueous solution of ferric and ferrous salts in the ratio Fe 3+ :Fe 2+ = 1:2, which is appropriate to magnetite. The experimental conditions that influence the shape and size of the particles were determined, and the mechanism of the formation of acicular particles is discussed.
Databáze: OpenAIRE