Synthesis of iron oxide nanoparticles under oxidizing environment and their stabilization in aqueous and non-aqueous media
Synthesis of iron oxide nanoparticles under oxidizing environment and their stabilization in aqueous and non-aqueous media
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DOI：
10.1016/j.jmmm.2006.05.001
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发表时间：
2007-01-01
影响因子：
2.7
通讯作者：
Agrawal, D. C.
中科院分区：
文献类型：
--
作者：
Maity, D.;Agrawal, D. C.
在氧化性环境下，水相沉淀法合成磁铁矿(Fe3O4)纳米粒子并不是一帆风顺的，因为Fe2+被氧化成Fe3+，在沉淀过程中Fe3+：Fe2+的比例不能保持在2：1。许多人使用小于2：1的Fe3+：Fe2+的摩尔比来补偿制备过程中Fe2+的氧化。在本工作中，我们采用初始摩尔比为Fe3+：Fe2+的沉淀法在空气环境中制备了纳米氧化铁。
Synthesis of magnetite (Fe3O4) nanoparticles under oxidizing environment by precipitation from aqueous media is not straightforward because Fe2+ gets oxidized to Fe3+ and thus the ratio of Fe3+ :Fe2+=2:1 is not maintained during the precipitation. A molar ratio of Fe3+:Fe2+ smaller than 2:1 has been used by many to compensate for the oxidation of Fe2+ during the preparation. In this work, we have prepared iron oxide nanoparticles in air environment by the precipitation technique using initial molar ratios Fe3+:Fe2+