高等学校化学学报 ›› 2002, Vol. 23 ›› Issue (2): 176.

• 研究简报 • 上一篇    下一篇

硫化银纳米晶的γ辐射制备

倪永红, 葛学武, 刘华蓉, 张志成, 叶强, 王峰   

  1. 中国科学技术大学应用化学系, 合肥 230026
  • 收稿日期:2000-10-30 出版日期:2002-02-24 发布日期:2002-02-24
  • 通讯作者: 葛学武(1959年出生),男,硕士,副教授,主要从事纳米材料的辐射制备研究.E-mail:xwge@ustc.edu.cu E-mail:xwge@ustc.edu.cu
  • 基金资助:

    中国科学技术大学青年基金资助

γ-Irradiation Route to Prepare Silver Sulfide Nanocrystals

NI Yong-Hong, GE Xue-Wu, LIU Hua-Rong, ZHANG Zhi-Cheng, YE Qiang, WANG Feng   

  1. Department of Applied Chemistry, University of Science and Technology of China, Hefei 230026, China
  • Received:2000-10-30 Online:2002-02-24 Published:2002-02-24

关键词: 硫化银, 纳米晶, &gamma, 射线辐射, X射线粉末衍射, 透射电镜

Abstract: Silver sulfide nanocrystals were successfully prepared by γ-irradiation in water and ethanol systems, respectively, at an ambient pressure and room temperature. Sodium thiosulfate, thiourea and carbon disulfide were employed as the sulfur ion source. The products were characterized by some means including X-ray powder diffraction(XRD) , transmission electron microscopy(TEM) and X-ray photoelectron energy spectrum(XPS). The result of the experiments indicated that the kind of the solvent and the sulfur ion source had influence on the size of silver sulfide nanoparticles. An interesting phenomenon was found in the TEMimage of sampleⅡ: several long rods existed in the product and a tubular structure could be seen in one of these rods. The formation of this kind of special structure could be relevant to the coordination between thiourea and silver in water system.

Key words: Silver sulfide, Nanocrystals, γ-Irradiation, XRD, TEM

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