Radiation induced synthesis of gold/iron-oxide composite nanoparticles using high-energy electron beam
Radiation induced synthesis of gold/iron-oxide composite nanoparticles using high-energy electron beam
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DOI：
10.1007/s11051-007-9334-3
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发表时间：
2008-08-01
影响因子：
2.5
通讯作者：
Yamamoto, Takao A.
中科院分区：
文献类型：
--
作者：
Seino, Satoshi;Kinoshita, Takuya;Yamamoto, Takao A.
利用高能电子束在水溶液中合成了金和氧化铁的复合纳米粒子。电子辐照诱导辐射化学反应以形成金属金纳米颗粒。这些金纳米颗粒被牢固地固定在载体氧化铁纳米颗粒的表面上。氧化铁纳米粒子的载体表面几乎完全被细小的金纳米粒子包覆。这些金纳米颗粒的大小取决于照射前溶液中金离子、聚合物和氧化铁纳米颗粒的浓度。
Composite nanoparticles consisting of gold and iron oxide were synthesized in aqueous solution systems by using a high-energy electron beam. The electron irradiation induces radiation-chemical reaction to form metallic gold nanoparticles. These gold nanoparticles were firmly immobilized on the surface of the support iron oxide nanoparticles. Surface of the support iron oxide nanoparticles are almost fully coated with fine gold nanoparticles. The size of these gold nanoparticles depended on the concentrations of gold ions, polymers and iron oxide nanoparticles in the solutions before the irradiation.