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Chemical Method for Recovery and Regeneration of Graphene Oxide.
Fernando, K A Shiral; Thakuri, Rajendr; Barry Schroeder, Amanda L; Ruiz, Oscar N.
Afiliación
  • Fernando KAS; Polymer and Specialty Materials Branch, Materials and Manufacturing Directorate, Air Force Research Laboratory, Wright-Patterson AFB, Ohio 32542, United States.
  • Thakuri R; Energy Technology and Materials Division, University of Dayton Research Institute, Dayton, Ohio 45469, United States.
  • Barry Schroeder AL; Fuels and Combustion Division, University of Dayton Research Institute, Dayton, Ohio 45469, United States.
  • Ruiz ON; Biomaterials Branch, Photonics, Electronic & Soft Materials Division, Materials and Manufacturing Directorate, Air Force Research Laboratory, Wright-Patterson AFB, Ohio 32542, United States.
ACS Appl Bio Mater ; 7(1): 315-324, 2024 Jan 15.
Article en En | MEDLINE | ID: mdl-38079526
Graphene oxide (GO) has been developed as a very effective medium for filtration and removal of microbial contaminants in fuel. GO is capable of filtering out microorganisms without needing micrometer and submicrometer pores for filtration. Our previous studies showed that microorganisms are attracted by GO and bind irreversibly to GO without promoting bacterial growth. Therefore, GO was tested as a filter medium to remove microorganisms in fuel. The characterization results showed that GO removed microbes in diesel fuel with >99% efficiency. However, the synthesis of GO using Hummers' method is labor intensive and a time-consuming. We present in this paper an economical, less labor intensive and a simple chemical approach to recover GO after it has been used as a filtration medium for the removal of microorganisms in fuels. In the GO recovery process, microbial and fuel contaminated GO is washed with hexane to remove any fuel from the GO sample. The hexane-washed GO is further washed with acetone and mixed with ethanol to kill and remove any microorganisms. After washing with ethanol, the GO sample is sonicated in water to remove impurities and re-establish the oxygen functionalities. The final recovered-GO (rec-GO) is obtained after removing water by rotary evaporation. The chemical characterization of rec-GO showed that rec-GO is similar in both chemical and physical properties compared to freshly synthesized-GO (as-syn-GO). Rec-GO was shown to perform similarly to as-syn-GO in filtration of biocontaminated fuel. We estimate that our rec-GO is at least 90% cheaper than high quality commercially available GO.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Óxidos / Grafito / Hexanos Idioma: En Revista: ACS Appl Bio Mater Año: 2024 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Estados Unidos
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Óxidos / Grafito / Hexanos Idioma: En Revista: ACS Appl Bio Mater Año: 2024 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Estados Unidos