A facile and clean process for exfoliating MoS 2 nanosheets assisted by a surface active agent in aqueous solution

A facile and clean process for exfoliating MoS 2 nanosheets assisted by a surface active agent in aqueous solution

A facile, efficient and environmentally friendly process to exfoliate MoS is essentially critical to apply the obtained mono- and few-layer nanosheets in various electronic devices and sensors. Here we report a liquid phase exfoliation method for exfoliation of MoS , which employs a surfactant of so...

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Veröffentlicht in:Nanotechnology 2018-10, Vol.29 (42), p.425702
Hauptverfasser: Guan, Zhishu, Wang, Chao, Li, Wenjie, Luo, Suibin, Yao, Yingbang, Yu, Shuhui, Sun, Rong, Wong, Ching-Ping
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container_end_page
container_issue 42
container_start_page 425702
container_title Nanotechnology
container_volume 29
creator Guan, Zhishu
Wang, Chao
Li, Wenjie
Luo, Suibin
Yao, Yingbang
Yu, Shuhui
Sun, Rong
Wong, Ching-Ping
description A facile, efficient and environmentally friendly process to exfoliate MoS is essentially critical to apply the obtained mono- and few-layer nanosheets in various electronic devices and sensors. Here we report a liquid phase exfoliation method for exfoliation of MoS , which employs a surfactant of sodium dodecyl benzene sulfonate (SDBS) in water. The nonpolar benzene rings in SDBS can firmly bind to the MoS layer, facilitating the effective exfoliation of nanosheets in aqueous solution. It is found that the exfoliation efficiency and thickness of MoS nanosheets are related to the concentration of SDBS, and the mechanism was investigated. Defect free mono- and few-layer MoS nanosheets are obtained by controlling the amount of SDBS in solution, which exhibit stable dispersion in water over months, and it renders them as having great potential for solution-based device fabrication.
doi_str_mv 10.1088/1361-6528/aad676
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title A facile and clean process for exfoliating MoS 2 nanosheets assisted by a surface active agent in aqueous solution
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