Preparation method of organic graphene nano-tubes with titanium dioxide modified on the surface

A titanium dioxide, surface modification technology, applied in nanotechnology, chemical instruments and methods, nanotechnology and other directions for materials and surface science, to achieve the effect of strong stability and enhanced energy transmission efficiency
CN107597196AActive Publication Date: 2018-01-19DONGHUA UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
DONGHUA UNIV
Publication Date
2018-01-19

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Abstract

The invention relates to a preparation method of organic graphene nano-tubes with titanium dioxide modified on the surface. The preparation method comprises: preparing a hexabenzocoronene compound with introduced carboxyl by using triglycol as a raw material, ultrasonically dissolving the obtained compound in a solvent, forming a nano-tubular structure A-GNT through self-assembly, hydrolyzing theester groups on the inner surface and the outer surface of the nano-tubes into the hydroxyl groups, adding Ti(OiPr)4, and carrying out a transesterification reaction on the hydroxyl groups on the surface and the titanate to obtain the organic graphene nano-tubes A-GNT-TiO2 with titanium dioxide modified on the surface. According to the present invention, the organic graphene nano-tubes A-GNT-TiO2with titanium dioxide modified on the surface can be used as the functional graphene material so as to perform photocatalytic reactions in photoelectric materials and solar cell materials; and the preparation method can provide the scientific basis for the improvement of the self-assembly theory.
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Description

technical field

[0001] The invention belongs to the field of nano-supramolecular materials, in particular to a method for preparing organic graphene nanotubes whose surface is modified with titanium dioxide. Background technique

[0002] As a new type of two-dimensional planar nanomaterial, graphene has become a research frontier and hotspot that has attracted much attention since its discovery in 2004. However, since graphene does not contain any unstable bonds, its chemical stability is very high, the surface is in an inert state, and there is a strong van der Waals force between the sheets, which is easy to aggregate. Moreover, the interaction between graphene and other solvents and other media is weak, and it is difficult to dissolve in water and commonly used organic solvents. These problems greatly limit the further research and application of graphene. At this stage, the research on its functionalization has just begun, and the surface functionalization of graphene i...

Claims

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