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

Resultado de la investigaciónrevisión exhaustiva

Resumen

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
Idioma originalEnglish
Número de artículo1975
Páginas (desde-hasta)1975
Número de páginas11
PublicaciónNanomaterials
Volumen11
N.º8
DOI
EstadoPublished - ago 2021

Nota bibliográfica

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

All Science Journal Classification (ASJC) codes

  • Ingeniería química (todo)
  • Ciencia de los materiales (todo)

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