Controlling the Morphology of Nanoflakes Obtained by Liquid-Phase Exfoliation: Implications for the Mass Production of 2D Materials

2020 ◽  
Vol 3 (12) ◽  
pp. 12095-12105
Author(s):  
Hélio Chacham ◽  
Joyce C. C. Santos ◽  
Flávia G. Pacheco ◽  
Diego L. Silva ◽  
Rozana M. Martins ◽  
...  
Nanomedicine ◽  
2020 ◽  
Vol 15 (21) ◽  
pp. 2041-2052
Author(s):  
Zhongjian Xie ◽  
Ruitao Lu ◽  
Yao Zhu ◽  
Minhua Peng ◽  
Taojian Fan ◽  
...  

Aim: The present study aims to apply the facile liquid-phase exfoliation (LPE) strategy to fabricate 2D organic materials and thus to broaden the family of biocompatible and multifunctional 2D materials. Materials & methods: 2D material-organic melanin and cellulose nanosheets were synthesized from black sesame hull using LPE. Photoluminescence and photothermal properties of the nanosheets were assessed, as well as stability and cell killing ability. Results: The prepared 2D nanoplatform exhibited broad and multiple photoluminescent emission bands. It also demonstrated efficient photothermal cancer therapy with excellent biocompatibility. Conclusion: The present study could open an avenue in exfoliating organic materials using the LPE strategy. This could make the fabrication of multifunctional 2D organic materials more efficient and broaden the family of biocompatible 2D nanomaterials.


2020 ◽  
Vol 22 (39) ◽  
pp. 22157-22179
Author(s):  
Titas Kumar Mukhopadhyay ◽  
Ayan Datta

In this perspective article, recent advances in molecular simulation techniques have been reviewed to shed light on the complexity of liquid phase exfoliation of 2D materials.


Nanoscale ◽  
2021 ◽  
Author(s):  
Chen-Xia Hu ◽  
Yuyoung Shin ◽  
Oliver Read ◽  
Cinzia Casiraghi

Dispersant-assisted liquid-phase exfoliation allows the production of a wide range of water-based 2D material dispersions. This review provides an overview on this production method and also gives some perspectives on future research directions.


Small ◽  
2016 ◽  
Vol 12 (20) ◽  
pp. 2741-2749 ◽  
Author(s):  
Jianfeng Shen ◽  
Jingjie Wu ◽  
Man Wang ◽  
Pei Dong ◽  
Jingxuan Xu ◽  
...  

Nanoscale ◽  
2018 ◽  
Vol 10 (48) ◽  
pp. 23182-23190 ◽  
Author(s):  
Iwona Janica ◽  
Stefano Del Buffa ◽  
Agnieszka Mikołajczak ◽  
Matilde Eredia ◽  
Dawid Pakulski ◽  
...  

Dispersions of high-quality 2D nanosheets are produced by liquid-phase exfoliation of vermiculite clay, resulting in thermally insulating printable inks.


2021 ◽  
Vol 5 (1) ◽  
Author(s):  
Mohsen Moazzami Gudarzi ◽  
Maryana Asaad ◽  
Boyang Mao ◽  
Gergo Pinter ◽  
Jianqiang Guo ◽  
...  

AbstractThe use of two-dimensional materials in bulk functional applications requires the ability to fabricate defect-free 2D sheets with large aspect ratios. Despite huge research efforts, current bulk exfoliation methods require a compromise between the quality of the final flakes and their lateral size, restricting the effectiveness of the product. In this work, we describe an intercalation-assisted exfoliation route, which allows the production of high-quality graphene, hexagonal boron nitride, and molybdenum disulfide 2D sheets with average aspect ratios 30 times larger than that obtained via conventional liquid-phase exfoliation. The combination of chlorosulfuric acid intercalation with in situ pyrene sulfonate functionalisation produces a suspension of thin large-area flakes, which are stable in various polar solvents. The described method is simple and requires no special laboratory conditions. We demonstrate that these suspensions can be used for fabrication of laminates and coatings with electrical properties suitable for a number of real-life applications.


2021 ◽  
Vol 31 (17) ◽  
pp. 2010401
Author(s):  
Lingfeng Gao ◽  
Rui Wang ◽  
Artem V. Kuklin ◽  
Han Zhang ◽  
Hans Ågren

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