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Self-assembled nano leaf/vein bionic structure of TiO2/MoS2 composites for photoelectric sensors

Abstract

Motivated by the leaf/vein structure of leaves which effectively support the photosynthesis of green plants, a nano leaf/vein bionic structure of self-assembled TiO2/MoS2 composites is applied to induce reversible photochromic reactions of methylene blue (MB) for the first time. This reversible photochromic phenomenon gives a brand new performance for the TiO2/MoS2 composite and expands its applications. Similar to the case that the natural vein network in leaves ensures the efficient material transfer and energy exchange for photosynthesis, the bionic internal MoS2 vein network in the composites ensures efficient separation and directional transfer of photo-generated carriers to restrain the photocatalytic degradation reactions and to enhance the reversible photochromic reactions. Furthermore, the photosensitive applications of the TiO2/MoS2/MB systems with such a self-assembled nano leaf/vein bionic structure are discussed with two typical photoelectric sensory models for both controllers and detectors.

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Publication details

The article was received on 16 Sep 2017, accepted on 21 Oct 2017 and first published on 23 Oct 2017


Article type: Communication
DOI: 10.1039/C7NR06902B
Citation: Nanoscale, 2017, Accepted Manuscript
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    Self-assembled nano leaf/vein bionic structure of TiO2/MoS2 composites for photoelectric sensors

    Q. Wang, P. Yu, L. Bai, R. Bao, C. Cheng, Z. Liu, M. Yang, N. Wang, W. Yang and Z. Guo, Nanoscale, 2017, Accepted Manuscript , DOI: 10.1039/C7NR06902B

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