Jafarpour, Mohammad and Sheibani Aghdam, Araz and Talebian Gevari, Moein and Koşar, Ali and Bayazıt, Mustafa Kemal and Ghorbani, Morteza (2021) An ecologically friendly process for graphene exfoliation based on the "hydrodynamic cavitation on a chip" concept. RSC Advances, 11 (29). pp. 17965-17975. ISSN 2046-2069 (Print) 2046-2069 (Online)
![[thumbnail of Open Access]](https://research.sabanciuniv.edu/style/images/fileicons/application_pdf.png)
d1ra03352b.pdf
Download (1MB)
Official URL: http://dx.doi.org/10.1039/d1ra03352b
Abstract
Tremendous research efforts have recently focused on the synthesis of graphene from graphitic materials, while environmental issues, scalability, and cost are some of the major challenges to be surmounted. Liquid phase exfoliation (LPE) of graphene is one of the principal methods for this synthesis. Nevertheless, sufficient information about the mechanisms of exfoliation has yet to emerge. Here, a microreactor based on the hydrodynamic cavitation (HC) on a chip concept is introduced to exfoliate graphite in a totally green process which involves only natural graphite flakes and water. HC-treated graphitic materials were characterized by UV-Vis and Raman spectroscopy, DLS (Dynamic Light Scattering), AFM (Atomic Force Microscopy), and SEM (Scanning Electron Microscopy) analyses. The present sustainable reactor system was found to exfoliate thick and large graphite particles to nano-sized sheets (∼1.2 nm) with a lateral size of ∼500 nm to 5 μm.
Item Type: | Article |
---|---|
Subjects: | Q Science > Q Science (General) |
Divisions: | Faculty of Engineering and Natural Sciences > Academic programs > Mechatronics Faculty of Engineering and Natural Sciences Sabancı University Nanotechnology Research and Application Center |
Depositing User: | Araz Sheibani Aghdam |
Date Deposited: | 29 Jun 2022 15:12 |
Last Modified: | 03 Sep 2022 22:19 |
URI: | https://research.sabanciuniv.edu/id/eprint/42873 |