A kind of graphite phase nitrogen carbide nanosheet/cobalt trioxide nanosheet fish scale structure composite nanomaterial and its preparation method and application

Abstract

The invention aims at providing a method for synthesizing a scale-shaped graphite-phase nitrogen carbide nanosheet / cobaltosic oxide nanosheet composite material and belongs to the technical field of material preparation and catalysis. The composite material is prepared from the raw materials of functionalized graphite-phase nitrogen carbide and cobalt salt through a hydrothermal method at high temperature. The prepared scale-shaped two-dimensional nitrogen carbide nanosheet / cobaltosic oxide nanosheet composite material is in morphology that a scale-shaped cobaltosic oxide nanosheet nanocomposite material evenly grows on the surface of a two-dimensional nitrogen carbide nanosheet. Compared with a traditional pure two-dimensional nitrogen carbide nanomaterial, the specific surface area of the material and the screening capacity of the material to a catalytic substrate are effectively improved, and the material has more efficient photocatalytic performance. The preparation method has the advantages of simple technology, low cost and high catalytic efficiency; the prepared material has efficient carbon dioxide reducing capacity, and thus has good application prospect in the photocatalysis field of environmental modification, greenhouse gas elimination and the like.

Description

technical field [0001] The invention belongs to the technical field of material preparation and catalysis, and in particular relates to a graphite-phase nitrogen carbide nanosheet / cobalt tetroxide nanosheet scale-like composite nanomaterial and its preparation method and application. Background technique [0002] Using solar energy to solve global energy and environmental problems is an important research direction in the field of scientific research today. Semiconductor photocatalytic nanomaterials can make full use of solar energy at room temperature, and have many advantages such as low cost and no pollution. The problem of energy shortage is of great significance. For many years, researchers have been working on the development of stable and high-efficiency visible light catalysts. In recent years, graphite-phase nitrogen carbide semiconductor materials, as a metal-free visible light photocatalyst, have attracted widespread attention from scientists and researchers, but...

AI Technical Summary

Problems solved by technology

In recent years, graphite-phase nitrogen carbide semiconductor materials, as a metal-free visible light photocatalyst, have attracted widespread attention from scientists and researchers, but there are still some defects that cannot be ignored: small specific surface area, few active sites, resulting in inefficient quantum dots

[0004] Preparation of graphitic nitrogen carbide nanosheets / cobalt tetraoxide nanosheet composite nanomaterials with fish scale structure by hydrothermal method has not been reported yet

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