Journal
CHEMICAL SCIENCE
Volume 8, Issue 6, Pages 4381-4386Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c7sc00153c
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Funding
- National Natural Science Foundation of China [21522108, 11290163, 51373025]
- Beijing Nova Program
- Youth Innovation Promotion Association of CAS
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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.
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