Method for quickly preparing gold nanoparticles through physalis pubescens pulp juice

A nanoparticle and gold preparation technology, which is applied in the direction of nanotechnology, can solve the problems of environmental pollution and high cost of physical methods, and achieve the effects of less environmental pollution, low cost, and simple and rapid synthesis methods

Inactive Publication Date: 2017-03-15
HARBIN UNIV OF COMMERCE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The present invention aims to solve the technical problem that the existing chemical method for preparing gold nanoparticles is likely to cause environmental pollution due to many

Method used

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  • Method for quickly preparing gold nanoparticles through physalis pubescens pulp juice
  • Method for quickly preparing gold nanoparticles through physalis pubescens pulp juice
  • Method for quickly preparing gold nanoparticles through physalis pubescens pulp juice

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specific Embodiment approach 1

[0029] Embodiment 1: The method for quickly preparing gold nanoparticles from the pulp juice of Physalis edulis in this embodiment includes the following steps:

[0030] Step 1: Squeeze the pulp of Physalis edulis, centrifuge and take the supernatant, which is the juice mother liquor, and dilute the juice mother liquor with deionized water to obtain a juice solution; wherein the volume concentration of the juice solution is 20% to 100% %;

[0031] Step 2. Stir the chloroauric acid solution with a magnetic stirrer for 2 to 3 minutes at room temperature, then add fruit juice solution to the chloroauric acid solution, wait until the color changes from yellow to purple and then to wine red, increase the speed and continue stirring After 10-15 min, the reaction was terminated, and the gold nanoparticle solution was obtained.

specific Embodiment approach 2

[0032] Embodiment 2: The difference between this embodiment and Embodiment 1 is that the volume concentration of the fruit juice solution in Step 1 is 50%. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0033] Embodiment 3: The difference between this embodiment and Embodiment 1 or 2 is that the speed of centrifugation in step 1 is 3000~4000r / min. Others are the same as in the first or second embodiment.

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Abstract

The invention provides a method for quickly preparing gold nanoparticles through physalis pubescens pulp juice and relates to a preparation method of the gold nanoparticles. The method aims at solving the technological problems that by means of an existing chemical method for preparing the gold nanoparticles, due to the fact that more chemical reagents exist, pollution to the environment is caused easily, and the physical method cost is high. The method comprises the steps that physalis pubescens pulp is juiced, supernatant is taken after centrifuging, and the supernatant is the pulp juice; the pulp juice is diluted with deionized water, and a juice solution is obtained; and a chloroauric acid solution is stirred through a magnetic stirrer, the juice solution is added to the chloroauric acid solution, the color is changed from yellow to purple to wine red, stirring is continued, and the gold nanoparticle solution is obtained. The synthetic method is simple and fast, the cost is low, the pollution to the environment is small, and the method is used for preparing the gold nanoparticles.

Description

technical field [0001] The invention relates to a preparation method of gold nanoparticles. Background technique [0002] Gold nanomaterials have been widely valued because of their unique catalytic and optical properties, and their preparation and application have become a research hotspot in the field of nanotechnology. Compared with the traditional physical and chemical methods, the bioreduction method based on microorganisms or plants that has emerged in recent years has the advantages of low cost, environmental protection, and high stability of nanomaterials, and has become a novel preparation method for nano-gold materials with development prospects. [0003] At present, there are many methods for preparing gold nanomaterials. Due to different preparation processes, the particle size, purity and physical and chemical properties of the obtained particles are also different. The quality of the product obtained by the physical method is high, but the requirements for equ...

Claims

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Application Information

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IPC IPC(8): B22F9/24B82Y40/00
CPCB22F9/24B82Y40/00
Inventor 关桦楠王薇刘晓飞
Owner HARBIN UNIV OF COMMERCE
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