Metal–Organic Framework Membrane Nanopores as Biomimetic Photoresponsive Ion Channels and Photodriven Ion Pumps

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

73 Scopus Citations
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Author(s)

  • Yanan Jiang
  • Wenjie Ma
  • Yujuan Qiao
  • Yifei Xue
  • Jiahao Lu
  • And 6 others
  • Jun Gao
  • Nannan Liu
  • Fei Wu
  • Ping Yu
  • Lei Jiang
  • Lanqun Mao

Detail(s)

Original languageEnglish
Pages (from-to)12795-12799
Journal / PublicationAngewandte Chemie - International Edition
Volume59
Issue number31
Online published28 Apr 2020
Publication statusPublished - 27 Jul 2020
Externally publishedYes

Abstract

Biological ion channels and ion pumps with sub-nanometer sizes modulate ion transport in response to external stimuli. Realizing such functions with sub-nanometer solid-state nanopores has been an important topic with wide practical applications. Herein, we demonstrate a biomimetic photoresponsive ion channel and photodriven ion pump using a porphyrin-based metal–organic framework membrane with pore sizes comparable to hydrated ions. We show that the molecular-size pores enable precise and robust optoelectronic ion transport modulation in a broad range of concentrations, unparalleled with conventional solid-state nanopores. Upon decoration with platinum nanoparticles to form a Schottky barrier photodiode, photovoltage across the membrane is generated with “uphill” ion transport from low concentration to high concentration. These results may spark applications in energy conversion, ion sieving, and artificial photosynthesis.

Research Area(s)

  • ion transport, membranes, metal–organic frameworks, nanopores, photodriven ion pumps

Citation Format(s)

Metal–Organic Framework Membrane Nanopores as Biomimetic Photoresponsive Ion Channels and Photodriven Ion Pumps. / Jiang, Yanan; Ma, Wenjie; Qiao, Yujuan et al.
In: Angewandte Chemie - International Edition, Vol. 59, No. 31, 27.07.2020, p. 12795-12799.

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review