| γ辐照诱导金纳米粒子的形成和形貌重塑 |
| Gold Nanorods: γ-Ray Induced Formation and Morphology Reshaping |
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| 摘要: 在十六烷基三甲基溴化铵(CTAB)水溶液中，抗坏血酸(AA)将橙黄色的Au3+还原为无色的Au+,在γ射线产生的水合电子的作用下，Au+进一步还被原成Au0，并在微量的Ag+诱导所产生的CTAB胶束中生长成为Au纳米棒。控制γ辐照的时间，可以实现金纳米粒子的形貌重塑，即由最初的棒状变为立方体，最终变为多面体。 |
| 关键词: γ辐照 形貌变化 金纳米粒子 |
| 基金项目: |
| Abstract: The Au3+ ions are reduced to Au+ ion with the color change from orange to colorless by ascorbic acid (AA) in aqueous solution of CTAB (cetyltrimethylammonium bromide). With the effect of γ-irradiation, the Au+ ions can be further reduced to Au0, and then form low aspect ratio gold nanorods in the rod-like CTAB micelles induced by a trace amount of Ag+. The reshaping of gold nanoparticles from initial rods to cube and finally to polyhedron can also be achieved by controlling the irradiation time. |
| Keywords: γ-irradiation morphology change gold nanoparticles |
| 投稿时间：2005-04-18 修订日期：2005-05-09 |
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| 范欣,尹桂,徐正.γ辐照诱导金纳米粒子的形成和形貌重塑[J].无机化学学报,2005,21(6):822-825. |
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