TY - JOUR
T1 - Micro Scalable Graphene Oxide Productions Using Controlled Parameters in Bench Reactor
AU - Andrade, Carolina
AU - Godoy , Anna Paula
AU - Gimenes Benega, Marcos Antonio
AU - Andrade, Ricardo
AU - Cardoso Andrade, Rafael
AU - Silva, Wellington
AU - de Oliveira Cremonezzi, Josue Marciano
AU - de Almeida Macedo, Waldemar Augusto
AU - Gastelois, Pedro
AU - Ribeiro, Helio
AU - Taha-Tijerina, Jaime
N1 - 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.
PY - 2021/8
Y1 - 2021/8
N2 - 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
AB - 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
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U2 - https://doi.org/10.3390/nano11081975
DO - https://doi.org/10.3390/nano11081975
M3 - Article
VL - 11
SP - 1975
JO - Nanomaterials
JF - Nanomaterials
SN - 2079-4991
IS - 8
M1 - 1975
ER -