A copper-based ternary composite metal oxide hollow nanomaterial, preparation method and application

Abstract

The invention provides a copper-based ternary mixed metal oxide hollow nano-material, a preparation method and an application thereof. Compared with the prior art, the preparation method of the copper-based ternary mixed metal oxide hollow nano-material has universality, the product is single in form, uniform in dimension and simple in method. The product purity is high, and the product is free from impurities, low in production cost, short in flow, low in equipment requirement, easy to perform amplification experiment and can realize the industrial production. Moreover, the low-price urea is used as structuring agent of a hollow structure, the grain size of a material is controlled by adjusting ratio of dihydric alcohol and water and dosage specificity of a non-polar surface active agent; the prepared homogeneous copper-based ternary mixed metal oxide hollow nano-material can be applied to restoration of p-nitrophenol, and is quick in reaction speed, high in catalyst efficiency, good in circulating effect, and low in cost.

Description

technical field [0001] The invention relates to the preparation and application fields of metal oxide micro-nano materials, in particular to a copper-based ternary composite metal oxide hollow nano-material, a preparation method and an application. Background technique [0002] As a typical class of materials, hollow micro-nanostructure materials have attracted the attention of researchers because of their low density and high specific surface area, and their hollow parts can accommodate a large number of guest molecules or large-sized guests, which can produce some The unique properties based on the microscopic "wrapping" effect make the hollow micro-nanostructures have important applications in the field of energy storage. Based on this point, there are many ways to prepare micro-nanostructures with hollow structures. In summary, there are mainly direct synthesis method (Prog.Chem., 2008, 20, 679), hard template method (Angew.Chem.Int.Ed., 2004, 43,3827), ion exchange met...

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Problems solved by technology

[0003] We know that the direct synthesis method is often poor in universality when synthesizing hollow structures. It can only synthesize a specific hollow structure, and there is no room for popularization and application, so its development is also greatly restricted.

The hard template method generally requires more than three steps, such as: template synthesis, template surface compounding-removing templates and (or) annealing processes, etc. This synthesis method also has relatively large industrial applications due to factors such as complex processes and high costs. limitations

The development based on the Kirkendall effect and the precipitation-heat treatment method has attracted much attention, but generally requires a hard template as a support. Therefore, the promotion still faces weaknesses such as complex synthesis routes and high economic costs.

[0004] However, there are few reports on the controlled synthesis of copper-based ternary composite metal oxide hollow nanomaterials with hollow and porous structures.

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