Facile Graphene Oxide Preparation by Microwave-Assisted Acid Method

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dc.citation.firstpage978
dc.citation.issueNumber5
dc.citation.journalTitleJournal of the Brazilian Chemical Society
dc.citation.lastpage984
dc.citation.volumeNumber26
dc.contributor.authorViana, Marcelo M.
dc.contributor.authorLima, Meiriane C.F.S.
dc.contributor.authorForsythe, Jerimiah C.
dc.contributor.authorGangoli, Varun S.
dc.contributor.authorCho, Minjung
dc.contributor.authorCheng, Yinhong
dc.contributor.authorSilva, Glaura G.
dc.contributor.authorWong, Michael S.
dc.contributor.authorCaliman, Vinicius
dc.date.accessioned2017-05-15T17:23:58Z
dc.date.available2017-05-15T17:23:58Z
dc.date.issued2015
dc.description.abstractFew-layered graphene oxide (GO) was prepared using a fast and energy-saving method by microwave-assisted acid technique. The oxygenated groups existing on the GO surface were determined using UV-Vis, X-ray photoelectron and Fourier-transform infrared spectroscopies. An oxygenated group percentage of 30% in mass for the GO was observed by thermogravimetric analysis. The reduced few-layered graphene oxide (rGO) film annealed at 110 °C deposited onto a silicon/silica wafer showed expanded graphite-like structure with 0.70 nm between the rGO sheets, as determined by X-ray diffraction. This rGO film exhibited a relatively high electrical conductivity value of 7.36 × 102 S m-1 confirming the good restoration of the π-conjugated system. The prepared GO sample exhibited good stability in water from pH 4 to 12, as determined by its zeta potential, and contained 5 to 9 layers, as determined by atomic force microscopy (AFM) and transmission electron microscopy (TEM).
dc.identifier.citationViana, Marcelo M., Lima, Meiriane C.F.S., Forsythe, Jerimiah C., et al.. "Facile Graphene Oxide Preparation by Microwave-Assisted Acid Method." <i>Journal of the Brazilian Chemical Society,</i> 26, no. 5 (2015) Sociedade Brasileira de Química: 978-984. http://dx.doi.org/10.5935/0103-5053.20150061.
dc.identifier.doihttp://dx.doi.org/10.5935/0103-5053.20150061
dc.identifier.urihttps://hdl.handle.net/1911/94260
dc.language.isoeng
dc.publisherSociedade Brasileira de Química
dc.rightsThis is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
dc.rights.urihttps://creativecommons.org/licenses/by-nc/3.0/us/
dc.subject.keywordmicrowave irradiation
dc.subject.keywordgraphene oxide
dc.subject.keywordfilm
dc.subject.keywordconductivity
dc.titleFacile Graphene Oxide Preparation by Microwave-Assisted Acid Method
dc.typeJournal article
dc.type.dcmiText
dc.type.publicationpublisher version
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