Pore-size dependent THz absorption of nano-confined water

Chi Kuang Sun, Borwen You, Yu Ru Huang, Kao Hsiang Liu, Shusaku Sato, Akiyoshi Irisawa, Motoki Imamura, Chung Yuan Mou

研究成果: 雜誌貢獻文章同行評審

12 引文 斯高帕斯(Scopus)

摘要

We performed a THz absorption spectroscopy study on liquid water confined in mesoporous silica materials, MCM-41-S-18 and MCM-41-S-21, of two different pore sizes at room temperatures. We found that stronger confinement with a smaller pore size causes reduced THz absorption, indicating reduced water mobility due to confinement. Combined with recent theoretical studies showing that the microscopic structure of water inside the nanopores can be separated into a core water region and an interfacial water region, our spectroscopy analysis further reveals a bulk-water-like THz absorption behavior in the core water region and a solid-like THz absorption behavior in the interfacial water region.

原文英語
頁(從 - 到)2731-2734
頁數4
期刊Optics Letters
40
發行號12
DOIs
出版狀態已發佈 - 2015
對外發佈

ASJC Scopus subject areas

  • 原子與分子物理與光學

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