Soluble graphene derived from graphite fluoride

Worsley, Kimberly A.; Palanisamy, R.; Mandal, Swadhin K.; Niyogi, Sandip; Itkis, Mikhail E.; Haddon, Robert C.

doi:10.1016/j.cplett.2007.07.059

Cited by 225 publications

(169 citation statements)

References 29 publications

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“…The peak at 1623 cm -1 could not be resolved as it was overshadowed by a 1620-1610 cm -1 band. The band at 1410 cm -1 assigned to C=C aromatic stretching vibrations mode can be also observed (39). Two different broad peaks bands at 1580 and 1420 cm -1 assigned to the asymmetric and symmetric stretching vibrations of an arylcarboxylate group can be seen for commercial TiO 2 material -KRONOClean 7000 (40).…”

Section: Resultsmentioning

confidence: 72%

Modification of Titanium Dioxide with Graphitic Carbon from Anthracene Thermal Decomposition as a Promising Method for Visible- Active Photocatalysts Preparation

Kusiak-Nejman

Wanag

Kowalczyk

et al. 2016

Journal of Advanced Oxidation Technologies

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Abstract:This work investigated the photocatalytic performance of TiO 2 photocatalysts modified with graphitic carbon under visible light with a very small component of UV. The graphitic carbon modification was conducted at 200-500 °C using thermal anthracene decomposition. The increase of calcination temperature leads to typical increase of crystallites size, decrease of the specific surface area and carbon content in modified samples. The characteristic peak for a skeletal in-plane vibrations of the anthracene ring located at 1522 cm -1 as well as the band at 1410 cm -1 assigned to C=C aromatic stretching vibrations mode were possible to observe. The analysis of the morphology using SEM confirmed the presence on new multi-layer carbonaceous flakes decorated with TiO 2 nanoparticles. TEM analysis and Raman studies proved the presence of graphitic structures covering the surface of the prepared TiO 2 /C photocatalysts. The highest photocatalytic activity, calculated on the basis of phenol photodegradation under visible light, was found for the photocatalyst modified with graphitic carbon at 400 °C (TiO 2 /C-400).

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Section: Resultsmentioning

confidence: 72%

Modification of Titanium Dioxide with Graphitic Carbon from Anthracene Thermal Decomposition as a Promising Method for Visible- Active Photocatalysts Preparation

Kusiak-Nejman

Wanag

Kowalczyk

et al. 2016

Journal of Advanced Oxidation Technologies

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“…A number of different ways of preparing graphene have been reported [29][30][31][32][33][34][35][36]. Among these, nearly perfect graphene has been prepared by mechanical exfoliation, which has opened up the promising field of graphene-based electronics [29].…”

Section: Introductionmentioning

confidence: 99%

Facile synthesis and application of Ag-chemically converted graphene nanocomposite

et al. 2010

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An in situ chemical synthesis approach has been employed to prepare an Ag-chemically converted graphene (CCG) nanocomposite. The reduction of graphene oxide sheets was accompanied by generation of Ag nanoparticles. The structure and composition of the nanocomposites were confirmed by means of transmission electron microscopy (TEM), atomic force microscopy (AFM) and X-ray diffraction. TEM and AFM results suggest a homogeneous distribution of Ag nanoparticles (5-10 nm in size) on CCG sheets. The intensities of the Raman signals of CCG in such nanocomposites are greatly increased by the attached silver nanoparticles, i.e., there is surface-enhanced Raman scattering activity. In addition, it was found that the antibacterial activity of free Ag nanoparticles is retained in the nanocomposites, which suggests they can be used as graphene-based biomaterials.

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“…The conductivity of fluorinated carbon is much less studied. Pristine graphene fluoride has not been produced [20].…”

Section: Introductionmentioning

confidence: 99%

Reversible fluorination of graphene: Evidence of a two-dimensional wide bandgap semiconductor

et al. 2010

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We report the synthesis and evidence of graphene fluoride, a two-dimensional wide bandgap semiconductor derived from graphene. Graphene fluoride exhibits hexagonal crystalline order and strongly insulating behavior with resistance exceeding 10 GΩ at room temperature. Electron transport in graphene fluoride is well described by variable-range hopping in two dimensions due to the presence of localized states in the band gap. Graphene obtained through the reduction of graphene fluoride is highly conductive, exhibiting a resistivity of less than 100 kΩ at room temperature. Our approach provides a new path to reversibly engineer the band structure and conductivity of graphene for electronic and optical applications.

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Soluble graphene derived from graphite fluoride

Cited by 225 publications

References 29 publications

Modification of Titanium Dioxide with Graphitic Carbon from Anthracene Thermal Decomposition as a Promising Method for Visible- Active Photocatalysts Preparation

Modification of Titanium Dioxide with Graphitic Carbon from Anthracene Thermal Decomposition as a Promising Method for Visible- Active Photocatalysts Preparation

Facile synthesis and application of Ag-chemically converted graphene nanocomposite

Reversible fluorination of graphene: Evidence of a two-dimensional wide bandgap semiconductor

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