中华医学超声杂志

应用化学 ›› 2011, Vol. 28 ›› Issue (06): 683-688.DOI: 10.3724/SP.J.1095.2011.00476

• 研究论文 • 上一篇    下一篇

两相热法处理Cyanex 301-Ag+/Cu2+萃取体系制备Ag2S纳米和CuS微米材料

孙霞,刘玉炳,李艳玲,廖伍平*   

  1. (中国科学院长春应用化学研究所稀土资源利用国家重点实验室 长春 130022)
  • 收稿日期:2010-08-13 修回日期:2010-09-20 出版日期:2011-06-10 发布日期:2011-06-10
  • 通讯作者: 廖伍平，研究员; Tel:0431-85262608; E-mail:wpliao@ciac.jl.cn; 研究方向：稀土萃取分离
  • 基金资助:
    国家自然科学基金(50704029)和吉林省科技发展计划(20080116)资助项目

Preparation of Ag2S Nanoparticles and CuS Microstructures from the Solvent Extraction Systems by a Two-phase Thermal Method

SUN Xia, LIU Yubing, LI Yanling, LIAO Wuping*   

  1. (State Key Laboratory of Rare Earth Resource Utilization,Changchun Institute of Applied Chemistry,Chinese Academy of Sciences,Changchun 130022)
  • Received:2010-08-13 Revised:2010-09-20 Published:2011-06-10 Online:2011-06-10

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摘要：

以Cyanex 301萃取剂为硫源，分别萃取Ag+和Cu2+，两相热法制备了Ag2S纳米颗粒和CuS微结构，采用X射线粉末衍射、紫外可见光谱、红外光谱以及电子显微镜对产物进行了表征。 表明制得的Ag2S和CuS分别为单斜相和六方相。 产物粒径随着反应温度的升高而增大，因而可通过加热温度调控产物尺寸，另外还考虑了其它反应条件对产物的影响。

关键词: Ag2S, CuS, Cyanex 301, 两相热法, 纳米颗粒, 微结构

Abstract:

Monoclinic Ag2S nanoparticles and hexagonal CuS microstructures have been successfully prepared from solvent-extraction systems by a two-phase thermal method. In these systems, the extractant Cyanex 301(di-(2,4,4-trimethylpentyl) dithiophosphinic acid) acts as not only the surfactant but also the sulfur source. The products were characterized by powder X-ray diffraction(XRD), UV-Visible spectroscopy(UV-Vis), FT-infrared spectroscopy(FTIR) and transmission/scanning electron microscopy(TEM/SEM). It is found that the size of Ag2S nanoparticles becomes bigger with the increasing temperature and the morphology and size of CuS microstructures can be controlled by the feed concentration or temperature.

Key words: Ag2S, CuS, Cyanex 301, two-phase thermal method, nanoparticles, microstructures

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