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The Fe(OH) 3 precursor was prepared by solid-state reaction with Fe(NO 3 ) 3 ·9H 2 O,NaOH and dispersed poly-ethylene glycol at low heating temperature(25℃).Synthesis of iron oxide(γ-Fe 2 O 3 )nanoparticle was achieved by thermal decomposition of Fe(OH) 3 ·xH 2 O precursor.The nanoparticle was characterized by TG-DTA,X-ray diffra-ction,TEM etc.The results showed that the nanoparticle was composed ofγ-Fe 2 O 3 and was a better absorber for electromagnetic wave within the low frequency band.
The Fe (OH) 3 precursor was prepared by solid-state reaction with Fe (NO 3) 3 · 9H 2 O, NaOH and dispersed poly-ethylene glycol at low heating temperature 2 O 3) nanoparticle was achieved by thermal decomposition of Fe (OH) 3 · xH 2 O precursor. The nanoparticle was characterized by TG-DTA, X-ray diffra-ction, TEM etc. The results showed that the nanoparticle was composed of γ -Fe 2 O 3 and was a better absorber for electromagnetic wave within the low frequency band.