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      Three-dimensional porous reduced graphene oxide decorated with carbon quantum dots and platinum nanoparticles for highly selective determination of azo dye compound tartrazine

      , , , , ,
      Food and Chemical Toxicology
      Elsevier BV

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          Synthesis of graphene-based nanosheets via chemical reduction of exfoliated graphite oxide

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            Raman spectroscopy in graphene

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              Raman spectra of graphite oxide and functionalized graphene sheets.

              We investigate Raman spectra of graphite oxide and functionalized graphene sheets with epoxy and hydroxyl groups and Stone-Wales and 5-8-5 defects by first-principles calculations to interpret our experimental results. Only the alternating pattern of single-double carbon bonds within the sp2 carbon ribbons provides a satisfactory explanation for the experimentally observed blue shift of the G band of the Raman spectra relative to graphite. To obtain these single-double bonds, it is necessary to have sp3 carbons on the edges of a zigzag carbon ribbon.
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                Contributors
                (View ORCID Profile)
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                Journal
                Food and Chemical Toxicology
                Food and Chemical Toxicology
                Elsevier BV
                02786915
                December 2021
                December 2021
                : 158
                : 112698
                Article
                10.1016/j.fct.2021.112698
                34838678
                aeb75761-2598-4462-a116-09e65f1cf881
                © 2021

                https://www.elsevier.com/tdm/userlicense/1.0/

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