Optical Spectroscopy and Microscopy Studies on the Spatial Distribution and Reaction Dynamics in Zeolites
Optical Spectroscopy and Microscopy Studies on the Spatial Distribution and Reaction Dynamics in Zeolites
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DOI：
10.1021/jz101572u
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发表时间：
2011-02
影响因子：
5.7
通讯作者：
S. Hashimoto
中科院分区：
文献类型：
--
作者：
S. Hashimoto
本文介绍了沸石光化学的研究现状，指出了尚待解决的问题，并提出了今后的研究方向。众所周知，迷人的主体材料可以在其大型内部笼/通道网络和外表面上充当客体离子，分子或簇的支持物，共同提供丰富的化学物质。两种技术已被证明是特别成功的研究，漫反射瞬态吸收光谱和光学显微镜。这些技术揭示的各种性质包括晶内和晶间迁移，迁移辅助的光化学反应，以及客体分子在晶体之间和晶体内的非均匀分布。
This Perspective describes current research into the photochemistry of zeolites, pointing out issues yet to be resolved and suggesting future directions of investigation. The fascinating host materials are known to act as a support for guest ions, molecules, or clusters both within their large interior cage/channel networks and on their exterior surfaces, together providing rich chemistry. Two techniques have proven particularly successful for their study, diffuse reflectance transient absorption spectroscopy and optical microscopy. The various properties revealed by these techniques include intracrystalline and intercrystalline migration, migration-assisted photochemical reactions, and heterogeneous distribution of guest molecules among and within crystals.