首页> 外文期刊>RSC Advances >Structural characterization, optical properties and photocatalytic activity of MOF-5 and its hydrolysis products: implications on their excitation mechanism
【24h】

Structural characterization, optical properties and photocatalytic activity of MOF-5 and its hydrolysis products: implications on their excitation mechanism

机译:MOF-5的结构表征,光学性质和光催化活性及其水解产物:对其激发机制的影响

获取原文
获取原文并翻译 | 示例
           

摘要

The existing concerns on the limited stability of Zn4O-based MOFs upon exposure to humidity or aqueous environments, as well as on the excitation mechanisms, are discussed on the basis of Raman, FTIR, DR-UV and XRD measurements. This paper demonstrates that MOF-5 dispersed in water produces a relatively stable new phase, MOF-5W, which slowly degrades to MOF-5H, a mixture of MOF-5W and zinc terephthalate dihydrate (ZTDH). The structure and optical properties of MOF-5W and MOF-5H and their optical and photocatalytic properties reveal the main role played by the organic moiety in determining the final properties of these structures, supporting the idea of a ligand to ligand charge transfer (LLCT) excitation mechanism rather than the usually assumed ligand to metal charge transfer (LMCT).
机译:基于拉曼,FTIR,DR-UV和XRD测量,讨论了对湿度或水环境暴露在湿度或含水环境暴露于湿度或水环境上的有限稳定性的关注。 本文表明,分散在水中的MOF-5产生相对稳定的新阶段MOF-5W,其缓慢降解到MOF-5H,MOF-5W和苯二甲酸锌二水合物(ZTDH)的混合物。 MOF-5W和MOF-5H的结构和光学性质及其光学和光催化性质揭示了有机部分在确定这些结构的最终性质时起作用的主要作用,支持配体对配体电荷转移的概念(LLCT) 激发机制而不是通常假定的配体金属电荷转移(LMCT)。

著录项

  • 来源
    《RSC Advances》 |2015年第89期|共7页
  • 作者单位

    Univ Nacl Mar del Plata Fac Ciencias Exactas &

    Nat Dept Quim Mar Del Plata Buenos Aires Argentina;

    Univ Nacl Mar del Plata Fac Ciencias Exactas &

    Nat Dept Quim Mar Del Plata Buenos Aires Argentina;

    Univ Nacl Mar del Plata Fac Ciencias Exactas &

    Nat Dept Quim Mar Del Plata Buenos Aires Argentina;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 化学;
  • 关键词

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