Graphene oxide nano-domain formation via wet chemical oxidation of graphene

Yazıcı, Esra; Yanik, Serhat; Yılmaz, Mehmet

doi:10.1016/j.carbon.2016.10.062

Cited by 35 publications

(13 citation statements)

References 50 publications

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“…[43][44][45] As the precursor of graphene, graphene oxide (GO) possesses abundant surface oxygen functional groups which enable it compound tightly with other materials and reduced to graphene simultaneously. 46 Recently, using GO as the precursor, many BiOBr-graphene composites have been successfully synthesized, in which graphene was performed as an excellent co-catalyst. For example, Lee's group presents the composites via a simple solvothermal route.…”

Section: -26mentioning

confidence: 99%

Efficient photocatalytic dye degradation over Er-doped BiOBr hollow microspheres wrapped with graphene nanosheets: enhanced solar energy harvesting and charge separation

et al. 2017

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In this work, Er-doped BiOBr hollow microspheres wrapped with graphene nanosheets, which acted as a photocatalyst with excellent photocatalytic activity and stability, have been successfully synthesized through a simple two-step hydrothermal method. The related properties of the as-prepared photocatalyst were analyzed and a possible reaction mechanism was proposed. Incorporating the rareearth element Er into the BiOBr crystal lattice can greatly expand the optical window, maybe owing to the reduced energy band gap by the impurity energy level introduced below the conduction band and indirect utilization of long-wavelength visible light caused by the up-conversion performance. The wrapping with surface graphene nanosheets can efficiently promote charge separation and transmission over the hybrid photocatalyst. The synergistic effect between efficient solar energy harvesting and charge separation gives rise to a remarkable improvement of photocatalytic activity for RhB degradation under simulated sunlight irradiation. In addition, the as-prepared photocatalyst possesses excellent photocatalytic stability, mainly due to the robust coordination interaction between the graphene and the (001) facets of the BiOBr subunits. The rational design of this highly active and stable photocatalyst provides a promising approach for future applications.

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Section: -26mentioning

confidence: 99%

Efficient photocatalytic dye degradation over Er-doped BiOBr hollow microspheres wrapped with graphene nanosheets: enhanced solar energy harvesting and charge separation

et al. 2017

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“…GO continues to draw research interest and has been widely used in various applications such as sensors, electronic devices, biomedical applications including drug delivery, water ltration, gas adsorption and preparation of nanocomposites. [1][2][3][4][5][6][7] For all these applications, the colloidal stability of the GO sheets within the solvent or polymer matrix is a prerequisite in order to control their distribution or arrangement necessary to develop high-quality GO-based nanocomposites. The stability of GO sheets is attributed to the hydrophilic functional groups such as hydroxyl (-OH) on the basal plane and epoxy (-CH(O)CH-) groups on the sheet edges.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of diamine functionalised graphene oxide and its application in the fabrication of electrically conducting reduced graphene oxide/polymer nanocomposite films

et al. 2020

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“…In the LFM image (Figure 6e, right), brighter pixels correspond to a lower frictional force. Since pristine GE has reduced frictional interaction with the AFM tip relative to GO, the brighter region is GE and the dark region is GO, 30 confirming the combination of GO with GE.…”

Section: Industrial and Engineering Chemistry Researchmentioning

confidence: 77%

Preparation of a Highly Stable Dispersion of Graphene in Water with the Aid of Graphene Oxide

Gao

Liu

2019

Ind. Eng. Chem. Res.

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Utilization of graphene (GE) in water is physically limited by its lack of functional groups, high hydrophobicity, and large interlayer van der Waals forces. Easy agglomeration of GE makes the preparation of GE-filled composites in an aqueous environment very difficult. Conventional methods solve this problem by introducing a surfactant to the system. However, the addition of a large amount of surfactant may hinder the performance of the composite. In this study, highly stable GE aqueous suspensions (remaining stable for more than 30 days) with a high concentration (1.5 mg/mL) were conveniently prepared by using graphene oxide (GO) as a stabilizer. A GE- and GO-filled rubber composite prepared by this GO–GE water suspension in an aqueous environment was also prepared and analyzed. It was found that a dual-network with dual functions was formed in the composite matrix: the GE network enhanced the electrical conductivity of the composite, while the GO network enhanced its mechanical properties. Our method is green, simple, and highly efficient, providing an alternative to improve GE’s dispersion in water and synthesize GE-filled composites in an aqueous environment.

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Graphene oxide nano-domain formation via wet chemical oxidation of graphene

Cited by 35 publications

References 50 publications

Efficient photocatalytic dye degradation over Er-doped BiOBr hollow microspheres wrapped with graphene nanosheets: enhanced solar energy harvesting and charge separation

Efficient photocatalytic dye degradation over Er-doped BiOBr hollow microspheres wrapped with graphene nanosheets: enhanced solar energy harvesting and charge separation

Synthesis of diamine functionalised graphene oxide and its application in the fabrication of electrically conducting reduced graphene oxide/polymer nanocomposite films

Preparation of a Highly Stable Dispersion of Graphene in Water with the Aid of Graphene Oxide

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