Sonochemical synthesis of the magnetite nanoparticles in aqueous solution
Sonochemical synthesis of the magnetite nanoparticles in aqueous solution
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DOI：
10.2109/jcersj2.115.867
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发表时间：
2007-12-01
影响因子：
1.1
通讯作者：
Enpuku, Keiji
中科院分区：
文献类型：
--
作者：
Dang, Feng;Kamada, Kai;Enpuku, Keiji
通过包括Fe（OH）（2）的溶解和氧化相在超声辐射下在水溶液中的沉淀的过程来合成磁铁矿纳米颗粒。结果表明，超声波辐照加速了磁铁矿的形成。超声辐照合成的磁铁矿颗粒的结晶度和磁性能均优于机械搅拌合成的磁铁矿颗粒。同时研究了溶解气体和pH值的影响。溶解气是影响超声作用对磁铁矿形成影响的重要因素，不同气体作为溶解气，超声化学合成磁铁矿的颗粒性质不同。在超声波作用下，在中性溶液中成功地合成了磁铁矿颗粒。低pH值延缓了磁铁矿的形成，影响了磁铁矿颗粒的形貌。
The magnetite nanoparticles were synthesized through a process including dissolution of Fe(OH)(2) and precipitation of an oxidized phase under ultrasonic irradiation in an aqueous solution. It was found that the ultrasonic irradiation accelerated the formation of magnetite. The crystallinity and magnetic properties of the magnetite particles synthesized under ultrasonic irradiation were better than those synthesized under mechanical stirring. The effects of dissolved gas and pH value were also studied. The dissolved gas was important to the effect of ultrasound on the formation of magnetite and the properties of particles were different when different gases were used as dissolved gas in the sonochemical synthesis of magnetite. The magnetite particles were successfully synthesized even at a neutral solution under ultrasonic irradiation. The low pH value delayed the formation of magnetite and affected the morphology of magnetite particles.