Rapid preparation method of AU@Cu2O nanocomposite in yolk-shell structure

A technology of nanomaterials and eggshells, which is applied in the direction of coating, etc., can solve the problems of difficult nanomaterials, complex preparation methods, cumbersome and lengthy processes, etc., and achieve the effects of good stability, fast preparation process, and simple and easy-to-operate process
CN105689701AInactive Publication Date: 2016-06-22UNIV OF JINAN
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Applications(China)
Current Assignee / Owner
UNIV OF JINAN
Publication Date
2016-06-22
Estimated Expiration
Not applicable ยท inactive patent

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Abstract

The invention relates to a rapid preparation method of an AU@Cu2O nanocomposite in a yolk-shell structure. According to the nano material, the coverage degree of a shell layer can be controlled by regulating parameters of concentration, temperature and the like of CTAB. The preparation method comprises the following main steps: (1) adding a certain quantity of Vitamin C in mixed liquor of CuSO4.5H2O and cetyl trimethylammonium bromide (CTAB), stirring, and dissolving; (2) adding 3ml of aqueous solution of gold octahedron in the solution; (3) keeping the solution for 20min at the temperature of 60 DEG C, and then adding a certain quantity of NaOH solution dropwise; and (4) carrying out centrifugation on the obtained product, washing precipitates with deionized water and ethanol for many times, and finally dispersing in an ethanol solution. The AU@Cu2O nano material in the yolk-shell structure has very important application value in the aspects of catalysis, surface-enhanced raman scattering (SERS) and the like.
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Description

technical field

[0001] The present invention relates to an AuCu with a hollow yolk-shell structure 2 A rapid preparation method for O nanocomposites. Background technique

[0002] Nanocomposites with egg yolk-shell structure are a kind of core void shell nanomaterials with special hollow structure. Due to the special hollow structure of this core-shell nanomaterial, the contact area between the reactant and the core and shell materials can be increased, so that the respective characteristics of the core and shell nanomaterials can be fully utilized. Therefore, it is prepared from different materials. The yolk-shell nanocomposites can exhibit different characteristics, which make them have important application value in catalysis, chemical sensors, drug delivery, microreactors and other fields. The preparation methods of nanocomposites with egg yolk-eggshell structure generally include sacrificial template method, Ostwald ripening method, post-dipping method and selective e...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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