Molecules (Jan 2023)

Reversible Regulation of Polar Gas Molecules by Azobenzene-Based Photoswitchable Metal–Organic Framework Thin Films

  • Xuan Chen,
  • Siyu Fang,
  • Ping Xue,
  • Jiming Huang,
  • Mi Tang,
  • Zhengbang Wang

DOI
https://doi.org/10.3390/molecules28020877
Journal volume & issue
Vol. 28, no. 2
p. 877

Abstract

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The development of tunable molecule separation membranes requires materials with remote controllability and ultra-high separation capability. In this paper, a novel photoswitchable metal organic framework (MOF) thin film (Cu2(AzoBPDC)2) was prepared by liquid phase epitaxial layer-by-layer assembly to realize the reversible remote-controlled switching. The azobenzene side groups in the Cu2(AzoBPDC)2 thin film showed excellent reversible photoswitching performance under UV (365 nm) and Vis (450 nm) irradiation, achieving the remote-controlled mode of the diffusion flux of polar gas molecules in the MOF thin film.

Keywords