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The Influence of Reaction Conditions on the Properties of Graphene Oxide.
Huskic, Miroslav; Kepic, Dejan; Kleut, Duska; Mozetic, Miran; Vesel, Alenka; Anzlovar, Alojz; Bogdanovic, Danica Bajuk; Jovanovic, Svetlana.
Afiliación
  • Huskic M; Faculty of Polymer Technology, 2380 Slovenj Gradec, Slovenia.
  • Kepic D; Vinca Institute of Nuclear Sciences, National Institute of the Republic of Serbia, University of Belgrade, 11000 Belgrade, Serbia.
  • Kleut D; Vinca Institute of Nuclear Sciences, National Institute of the Republic of Serbia, University of Belgrade, 11000 Belgrade, Serbia.
  • Mozetic M; Jozef Stefan Institute, 1000 Ljubljana, Slovenia.
  • Vesel A; Jozef Stefan Institute, 1000 Ljubljana, Slovenia.
  • Anzlovar A; National Institute of Chemistry, 1000 Ljubljana, Slovenia.
  • Bogdanovic DB; Faculty of Physical Chemistry, University of Belgrade, 11158 Belgrade, Serbia.
  • Jovanovic S; Vinca Institute of Nuclear Sciences, National Institute of the Republic of Serbia, University of Belgrade, 11000 Belgrade, Serbia.
Nanomaterials (Basel) ; 14(3)2024 Jan 30.
Article en En | MEDLINE | ID: mdl-38334554
ABSTRACT
The present study focuses on correlations between three parameters (1) graphite particle size, (2) the ratio of graphite to oxidizing agent (KMnO4), and (3) the ratio of graphite to acid (H2SO4 and H3PO4), with the reaction yield, structure, and properties of graphene oxide (GO). The correlations are a challenge, as these three parameters can hardly be separated from each other due to the variations in the viscosity of the system. The larger the graphite particles, the higher the viscosity of GO. Decreasing the ratio of graphite to KMnO4 from 14 to 16 generally leads to a higher degree of oxidation and a higher reaction yield. However, the differences are very small. Increasing the graphite-to-acid-volume ratio from 1 g/60 mL to 1 g/80 mL, except for the smallest particles, reduced the degree of oxidation and slightly reduced the reaction yield. However, the reaction yield mainly depends on the extent of purification of GO by water, not on the reaction conditions. The large differences in the thermal decomposition of GO are mainly due to the bulk particle size and less to other parameters.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Nanomaterials (Basel) Año: 2024 Tipo del documento: Article País de afiliación: Eslovenia Pais de publicación: Suiza
Texto completo
Añadir a Mi BVS
Imprimir
XML
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Nanomaterials (Basel) Año: 2024 Tipo del documento: Article País de afiliación: Eslovenia Pais de publicación: Suiza