Complexing agent assisted synthesis of high aspect ratio Fe~(3+)/Mg~(2+) layered double hydroxides

摘要

A new, facile synthesis for Fe~(3+)/Mg~(2+) LDHs is developed and investigated. The crucial feature of the synthesis is the usage of a complexing agent (diethylenetriamine, DETA) to increase the solubility of iron phases precipitated intermediately. The influences of different synthesis parameter like DETA concentration, pH value, and temperature are investigated. The optimized synthesis route yields high aspect ratio Fe~(3+)/Mg~(2+) LDHs which are expected to be interesting filler materials for flame retardant nanocomposites.