Method for preparing multipod-like gold nanoparticles by chemical method
A gold nanoparticle, chemical method, applied in the field of nanoparticle preparation, can solve problems such as environmental poisoning and complex overall process, and achieve the effects of less impurities, high purity, and easy product separation
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0026] Embodiment 1 Preparation of multipod gold nanoparticles
[0027] Add a certain amount of soybean peptide and DTAC into water, heat it to 80°C to fully dissolve it, and then mix it with the aqueous solution containing chloroauric acid, so that the final concentrations of each component in the solution are: chloroauric acid 0.5mmol / L, soybean Peptide 4g / L, DTAC 2mmol / L. The above solution was heated to 70°C for reduction reaction for 18h. After the reaction, the reaction solution was centrifuged in a high-speed centrifuge (10,000 r / min) to separate the product, and the precipitate was washed three times with water to obtain multipod-shaped gold nanoparticles with an average particle size of about 50 nm.
Embodiment 2
[0028] Embodiment 2 Preparation of sea urchin-shaped gold nanoparticles
[0029] Add a certain amount of soybean peptide and DTAC into water, heat it to 80°C to fully dissolve it, and then mix it with the aqueous solution containing chloroauric acid, so that the final concentrations of each component in the solution are: chloroauric acid 0.2mmol / L, soybean Peptide 5g / L, DTAC 10mmol / L. The above solution was heated to 70°C for reduction reaction for 20h. After the reaction, the reaction solution was centrifuged with a high-speed centrifuge (10,000 r / min) to separate the product, and the precipitate was washed three times with water to obtain sea urchin-shaped gold nanoparticles with an average particle size of about 50 nm.
Embodiment 3
[0030] Example 3 Preparation of spherical gold nanoparticles
[0031] Add a certain amount of soybean peptide and DTAC into water, heat it to 80°C to fully dissolve it, and then mix it with the aqueous solution containing chloroauric acid, so that the final concentrations of each component in the solution are: chloroauric acid 0.4mmol / L, soybean Peptide 10g / L. The above solution was heated to 80°C for reduction reaction for 22h. After the reaction, the reaction solution was centrifuged with a high-speed centrifuge (12,000 r / min) to separate the product, and the precipitate was washed three times with water to obtain spherical gold nanoparticles with an average particle size of about 35 nm.
PUM
Login to View More Abstract
Description
Claims
Application Information
Login to View More