Author:
Chen Ming,Jiang Jianhua,Zhou Xiaoming,Diao Guowang
Abstract
Akaganeite (β-FeOOH) nanorods were synthesized through hydrolysis of FeCl3 and FeCl2 solutions containing urea in the temperature range from 90 to 95 °C under reflux condition for 8 h. The average diameters and lengths of nanorods were impacted
by FeCl2 and urea. Upon heating the solution containing FeCl3, FeCl2 and urea, the average diameters were about 80 nm and lengths of nanorods were about 1.2 μm. The morphologies of β-FeOOH nanorods in different growth times were shown
by TEM images. More interestingly, in the growth process of nanorods, they can self-assemble and form cross structure. The ultrasonic might promote effectively the formation of the nano-cross structure. β-FeOOH nanorods were calcined and the influence of the calcining temperature
and time about the morphology and size of the powder was studied. By heating β-FeOOH nanorods at 800 °C for 6 hours, the hematite in sphere shape was obtained and the forming mechanism was discussed.
Publisher
American Scientific Publishers
Subject
Condensed Matter Physics,General Materials Science,Biomedical Engineering,General Chemistry,Bioengineering
Cited by
28 articles.
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