Issue 6, 2017

Photo-switchable two-dimensional nanofluidic ionic diodes

Abstract

The bottom-up assembly of ion-channel-mimetic nanofluidic devices and materials with two-dimensional (2D) nano-building blocks paves a straightforward way towards the real-world applications of the novel transport phenomena on a nano- or sub-nanoscale. One immediate challenge is to provide the 2D nanofluidic systems with adaptive responsibilities and asymmetric ion transport characteristics. Herein, we introduce a facile and general strategy to provide a graphene-oxide-based 2D nanofluidic system with photo-switchable ionic current rectification (ICR). The degree of ICR can be prominently enhanced upon UV irradiation and it can be perfectly retrieved under irradiation with visible light. A maximum ICR ratio of about 48 was achieved. The smart and functional nanofluidic devices have applications in energy conversion, chemical sensing, water treatment, etc.

Graphical abstract: Photo-switchable two-dimensional nanofluidic ionic diodes

Supplementary files

Article information

Article type
Edge Article
Submitted
12 1 2017
Accepted
31 3 2017
First published
05 4 2017
This article is Open Access

All publication charges for this article have been paid for by the Royal Society of Chemistry
Creative Commons BY-NC license

Chem. Sci., 2017,8, 4381-4386

Photo-switchable two-dimensional nanofluidic ionic diodes

L. Wang, Y. Feng, Y. Zhou, M. Jia, G. Wang, W. Guo and L. Jiang, Chem. Sci., 2017, 8, 4381 DOI: 10.1039/C7SC00153C

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