A method for preparing au nanoflowers by a microwave-assisted method and au nanoflowers

Abstract

The present invention relates to the technical field of nanomaterial preparation, in particular to a microwave-assisted method for preparing Au nanoflowers and Au nanoflowers, comprising the following steps: step 1, adding a certain concentration of HAuCl into a round bottom flask 4 solution, followed by adding octadecylamine, KBr and PVP to form a mixed solution a; step 2, adding the reducing agent tetraethylene glycol (TEG) to the mixed solution a, mixing and stirring to obtain a mixed solution b; step 3, mixing the mixed solution b placed in a microwave reactor to heat the reaction; Step 4, the product of Step 3 is treated with acetone to obtain Au nanoflowers. The invention adopts a microwave-assisted method, the method is novel, and Au nanoflowers with single appearance, good dispersion and uniform size are prepared.

Description

Technical field

[0001] The present invention belongs to the technical field of nanomaterials prepared, particularly relates to a method for microwave-assisted preparation of Au nanoflowers. Background technique

[0002] Microwave is an electromagnetic wave between radio waves and infrared range, the wavelength range of 1mm ~ 1m, the frequency range of 0.3 ~ 300GHz, having a short wavelength, high frequency, penetrating ability and other characteristics, compliance with laws of light. 1986, etc. Gedy esterification, hydrolysis and other chemical reactions in a microwave oven, a microwave for synthetic materials. Since then, the gradual penetration of microwave technology will be applied to all areas of chemistry, a new heat source. Principle is to use the microwave heating effect of microwave electromagnetic field so that polar molecules from the original direction in accordance with the thermal state of the steering motion of the electromagnetic field are arranged in alternating ...

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