A kind of cufeo2-carbon nanotube nanocomposite and its synthesis method

Abstract

The invention relates to a CuFeO2-carbon nanotube nanocomposite and a synthesis method thereof. The synthesis includes the following steps: adding an appropriate amount of carbon nanotubes to water and dispersing them ultrasonically to form a carbon nanotube dispersion liquid. Dissolve Fe(III) salt and Cu(II) salt in water, and slowly drop the strong alkali solution under stirring to make the pH ≥ 11. Add carbon nanotube dispersion to the above mixture, stir to obtain a colloidal suspension, then add a reducing agent and mix evenly, then transfer the colloidal suspension to a hydrothermal kettle for hydrothermal reaction, cool, centrifuge, wash, dry. In the CuFeO2-carbon nanotube nanocomposite prepared by the above method, CuFeO2 is nanoparticles and wrapped on the surface of the carbon nanotube. Compared with the existing technology, the present invention introduces carbon nanotubes during the hydrothermal synthesis process to obtain a nanocomposite with good mass transfer conductivity and regular morphology, which is simple and easy to implement and can achieve large-scale production.

Description

technical field [0001] The invention belongs to the field of nanocomposite materials, in particular to a CuFeO 2 Nanocomposite and method for synthesizing the same. Background technique [0002] CuFeO 2 It is a delafossite-type mineral, which has the characteristics of good stability and high crustal abundance, and has the properties of p-type semiconductor, so it has a good application prospect in the field of photoelectric catalysis. Currently, CuFeO reported in the literature 2 It is mainly directly synthesized by electrodeposition or hydrothermal method, and the obtained CuFeO 2 All crystal blocks have problems such as high crystallinity, too large material particle size, and too small specific surface area, which are not conducive to catalytic reactions as catalysts. In the field of materials, materials with a size of 0.1-100nm in at least one dimension are called nanomaterials. Due to their small particles and large specific surface area, they have many special phy...

AI Technical Summary

Problems solved by technology

However, this method still fails to synthesize CuFeO below 100 nm 2 nanomaterials

How to further shrink CuFeO 2 The particle size of the material is controlled in the range of nanometer size, which is rarely reported in the prior art

In addition, for high-efficiency photocatalytic materials, in addition to the catalyst having a large specific surface area and abundant active sites, good material transport and charge conduction properties are indispensable.

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