• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Nanotechnology >Diatom frustules decorated with zinc oxide nanoparticles for enhanced optical properties
【24h】

Diatom frustules decorated with zinc oxide nanoparticles for enhanced optical properties

机译：用氧化锌纳米粒子装饰的硅藻粉末，用于增强光学性质

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Zinc oxide (ZnO) nanoparticles were synthesized on diatomite (DE) surface by a low temperature sol gel technique, starting from zinc acetate dihydrate (Zn(CH3COO)(2)center dot 2H(2)O) solution in water/ethyl alcohol, in presence of triethanolamine (TEA) with functions of Zn2+ chelating agent, catalyst and mediator of nanoparticle growth on DE surface. Microstructural features were investigated by field emission scanning electron microscopy and x-ray diffraction. ZnO crystalline nanoparticles, well distributed both on the surface and into the porous architecture of diatomite, were obtained just after the synthesis carried out at 80 degrees C without the need of calcination treatments. The optical properties of ZnO/DE hybrid powders were measured for the first time by means of photoacoustic spectroscopy (PAS). A new method to retrieve both the optical absorption and scattering coefficients from PAS is here discussed for powder aggregates. The fingerprint of the zinc oxide nanoparticles has been highlighted in the Mie scattering resonance in the UV-Vis range, and in the enhancement of the optical absorption with respect to diatomite.
机译：通过低温溶胶凝胶技术在硅藻土（DE）表面上合成氧化锌（ZnO）纳米颗粒，从醋酸锌二水合物（Zn（CH 3 COO）（2）中心点2H（2）O）溶液在水/乙醇中，在具有Zn2 +螯合剂，催化剂和纳米粒子生长的螯合剂上的磷酸酯胺（DEA）的存在的存在。通过现场发射扫描电子显微镜和X射线衍射研究了微观结构特征。 ZnO结晶纳米颗粒，在表面和硅藻土的多孔结构中分布，在80℃下在80℃下进行而无需煅烧处理。通过光声光谱（PAS）首次测量ZnO / de杂化粉末的光学性质。在此讨论用于从PAS中检索光学吸收和散射系数的新方法用于粉末聚集体。氧化锌纳米颗粒的指纹在UV-VIS范围内的MIE散射共振中突出显示，并在相对于硅藻土的光学吸收的增强中。

著录项

  • 来源
    《Nanotechnology》 |2017年第37期|共10页
  • 作者

    Lamastra F. R.; Grilli M. L.; Leahu G.; Belardini A.; Voti R. Li; Sibilia C.; Salvatori D.; Cacciotti I.; Nanni F.;

  • 作者单位

    Italian Interuniv Consortium Mat Sci &

    Technol IN Res Unit Roma Tor Vergata Via Politecn 1 I-00133 Rome Italy;

    ENEA Italian Natl Agcy New Technol Energy &

    Sustainable Econ Dev Energy Technol Dept Via Anguillarese 301 I-00123 Rome Italy;

    Sapienza Univ Roma Dept Fundamental &

    Appl Sci Engn Via Scarpa 16 I-00161 Rome Italy;

    Sapienza Univ Roma Dept Fundamental &

    Appl Sci Engn Via Scarpa 16 I-00161 Rome Italy;

    Sapienza Univ Roma Dept Fundamental &

    Appl Sci Engn Via Scarpa 16 I-00161 Rome Italy;

    Sapienza Univ Roma Dept Fundamental &

    Appl Sci Engn Via Scarpa 16 I-00161 Rome Italy;

    Univ Roma Tor Vergata Dept Enterprise Engn Via Politecn 1 I-00133 Rome Italy;

    Univ Rome Niccolo Cusano Dept Engn Via Don Carlo Gnocchi 3 I-00166 Rome Italy;

    Italian Interuniv Consortium Mat Sci &

    Technol IN Res Unit Roma Tor Vergata Via Politecn 1 I-00133 Rome Italy;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 特种结构材料;
  • 关键词

    zinc oxide nanoparticles; diatom frustules; diatomite; hybrid powders; microstructure; optical properties; photoacoustic spectroscopy;

    机译：氧化锌纳米粒子;硅藻粉;硅藻土;混合粉;微观结构;光学性质;光声光谱;

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号