Micro Scalable Graphene Oxide Productions Using Controlled Parameters in Bench Reactor

Carolina Andrade, Anna Paula Godoy , Marcos Antonio Gimenes Benega, Ricardo Andrade, Rafael Cardoso Andrade, Wellington Silva, Josue Marciano de Oliveira Cremonezzi, Waldemar Augusto de Almeida Macedo, Pedro Gastelois, Helio Ribeiro, Jaime Taha-Tijerina

Research output: Contribution to journalArticlepeer-review

Abstract

The detailed study of graphene oxide (GO) synthesis by changing the graphite/oxidizing reagents mass ratios (mG/mROxi), provided GO nanosheets production with good yield, structural quality, and process savings. Three initial samples containing different amounts of graphite (3.0 g, 4.5 g, and 6.0 g) were produced using a bench reactor under strictly controlled conditions to guarantee the process reproducibility. The produced samples were analyzed by Raman spectroscopy, atomic force microscopy (AFM), x-ray diffraction (XDR), X-ray photoelectron spectroscopy (XPS), Fourier-transform infrared spectroscopy (FTIR) and thermogravimetry (TGA) techniques. The results showed that the major GO product comprised of nanosheets containing between 1–5 layers, with lateral size up to 1.8 µm with high structural quality. Therefore, it was possible to produce different batches of graphene oxide with desirable physicochemical characteristics, keeping the amount of oxidizing reagent unchanged. The use of different proportions (mG/mROxi) is an important strategy that provides to produce GO nanostructures with high structural quality and scale-up, which can be well adapted in medium-sized bench reactor
Original languageEnglish
Article number1975
Pages (from-to)1975
Number of pages11
JournalNanomaterials
Volume11
Issue number8
DOIs
Publication statusPublished - Aug 2021

Bibliographical note

Funding Information:
Funding: This research was funded by Fundação de Amparo à Pesquisa de São Paulo (FAPESP) with the grants 2012/50259-8 and 2017/07244-3. By Mackenzie Research Fund (MackPesquisa, Project No. 181009). Supported by the National Council for Scientific and Technological Development (CNPq), the Coordination for the Improvement of Higher Education Personnel—Brazil (CAPES), and the Universidad de Monterrey.

Funding Information:
This research was funded by Funda??o de Amparo ? Pesquisa de S?o Paulo (FAPESP) with the grants 2012/50259-8 and 2017/07244-3. By Mackenzie Research Fund (MackPesquisa, Project No. 181009). Supported by the National Council for Scientific and Technological Development (CNPq), the Coordination for the Improvement of Higher Education Personnel?Brazil (CAPES), and the Universidad de Monterrey.

Funding Information:
Acknowledgments: The authors would like to acknowledge to Fundação de Amparo à Pesquisa de São Paulo (FAPESP) with the grants 2012/50259-8, 2017/07244-3, and the support from Uni-versidad de Monterrey. This work was also partially funded by the Mackenzie Research Fund (MackPesquisa, Project No. 181009). National Council for Scientific and Technological Development (CNPq), and Coordination for the Improvement of Higher Education Personnel—Brazil (CAPES).

Publisher Copyright:
: © 2021 by the authors. Licensee MDPI, Basel, Switzerland.

All Science Journal Classification (ASJC) codes

  • Chemical Engineering(all)
  • Materials Science(all)

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