Surfactant gel-based method: A universal soft method for the exfoliation of 2D materials.

Autor: Deepak D; Department of Physics, School of Natural Sciences, Shiv Nadar Institution of Eminence (SNIoE), NH-91, Greater Noida, Uttar Pradesh 201314, India., Upadhyay RK; Department of Mechanical Engineering, Indian Institute of Technology, Ropar, Punjab 140001, India. Electronic address: ru234@snu.edu.in., Sankaran KJ; CSIR- Institute of Minerals and Materials Technology, Bhubaneswar 751 013, India., Banerjee D; Department of Physics, School of Natural Sciences, Shiv Nadar Institution of Eminence (SNIoE), NH-91, Greater Noida, Uttar Pradesh 201314, India., Choudhury S; Department of Physics, School of Natural Sciences, Shiv Nadar Institution of Eminence (SNIoE), NH-91, Greater Noida, Uttar Pradesh 201314, India., Sharma G; Department of Physics, School of Natural Sciences, Shiv Nadar Institution of Eminence (SNIoE), NH-91, Greater Noida, Uttar Pradesh 201314, India., Roy SS; Department of Physics, School of Natural Sciences, Shiv Nadar Institution of Eminence (SNIoE), NH-91, Greater Noida, Uttar Pradesh 201314, India. Electronic address: susanta.roy@snu.edu.in.
Jazyk: angličtina
Zdroj: Journal of colloid and interface science [J Colloid Interface Sci] 2023 Sep; Vol. 645, pp. 906-917. Date of Electronic Publication: 2023 Apr 28.
DOI: 10.1016/j.jcis.2023.04.125
Abstrakt: Hypothesis: Fluidic micelles and reverse micelles have served as exfoliation mediums. However, an additional force, such as extended sonication, is required. Gelatinous cylindrical micelles that are formed once desired conditions are achieved can be an ideal medium for the quick exfoliation of 2D materials without the need for any external force. The quick formation of gelatinous cylindrical micelles can rip off layers from the 2D materials suspended in the mixture leading to the quick exfoliation of 2D materials.
Experiments: Herein, we introduce a quick universal method capable of delivering high-quality exfoliated 2D materials cost-effectively using CTAB-based gelatinous micelles as an exfoliation medium. The approach is devoid of harsh treatment, such as prolonged sonication and heating, and a quick exfoliation of 2D materials is completed using this approach.
Findings: We successfully exfoliated four 2D materials (MoS 2 , Graphene, WS 2 , and BN) and investigated their morphology, chemical, and crystal structure along with optical and electrochemical properties to probe the quality of the exfoliated product. Results revealed that the proposed method is highly efficient in exfoliating 2D materials in a quick time without causing any significant damage to the mechanical integrity of the exfoliated materials.
Competing Interests: Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
(Copyright © 2023 Elsevier Inc. All rights reserved.)
Databáze: MEDLINE
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