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化学学报
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化学学报 ›› 2001, Vol. 59 ›› Issue (4): 556-560. 上一篇    下一篇

研究论文

纳米银粒子负载的多孔氧化锆材料的研究

陈航榕;施剑林;阮美玲;严东生   

  1. 福州大学材料学院;中国科学院上海硅酸盐研究所.上海(200050);中国科学院 高性能陶瓷与超微结构国家重点实验室
  • 发布日期:2001-04-15

Studies on the porous zirconium oxide loaded with Ag nanoparticles

Chen Hangrong;Shi Jianlin;Ruan Meiling;Yan Dongsheng   

  1. Shanghai Inst Ceram., CAS.Shanghai(200050)
  • Published:2001-04-15

PDF

465

被引次数

9 | 4

采用液相浸渍移植及后续热处理工艺，把贵金属Ag成功地负载到多孔ZrO2材料中。产物用XRD，HRTEM，EDS，FT-IR，XPS及UV-vis等多种手段进行表征。结果表明，热处理对Ag粒子在多孔材料中的分散性具有重要的影响。在合适温度下，银的团簇粒子可以均匀地分散在多孔材料的孔道中，并产生明显的光吸收增强等主客体效应；随着温度的升高，银粒子倾向于向孔的外表面扩散。

关键词: 纳米相材料, 氧化锆, 银, Ｘ射线衍射分析, 付里叶变换, 红外分光光度法, Ｘ射线光电子谱法, 紫外分光光度法

The noble metal Ag has been loaded into the porous zirconium oxide by the solution-phase grafting method and a suitable thermal treatment. The X-ra powder diffraction, HRTEM,EDS,FT-IR,XPS and UV vis spectroscopy were adopted for the characterization of the products. It is shown that the dispersion of Ag particles is seriously influenced by the thermal treatment. Ag clusters can be dispersed homogeneously into the channels under suitable heat treatment, and the distinctive host-guest effect has been detected. However, Ag particles may diffuse onto the external pore surface with the increasing of the treatment temperature.

Key words: NANOPHASE MATERIALS, ZIRCONIUM OXIDE, SILVER, X-RAY DIFFRACTION ANALYSIS, FOURIER TRANSFORM, INFRARED SPECTROPHOTOMETRY, X-RAY PHOTOELECTRON SPECTROMETRY, ULTRAVIOLET SPECTROPHOTOMETRY

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