Gold and silver bimetal nanocluster as well as preparation method and application thereof
A bimetallic nano-cluster technology, applied in nanotechnology, nano-optics, nanotechnology, etc., can solve problems such as negative effects on biological growth
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0034] The 3 mL 20 mmol / L N-acetyl-L-cysteine solution, 2 mL 10 mmol / L chlorohydranoic acid solution and 2.5 mL 2 mmol / L silver nitrate solution were mixed, the mixture was stirred evenly and the heating temperature was controlled to be reflux at 80 °C for 8 h, and after cooling, the aqueous solution of gold and silver bimetallic nanoclusters was obtained. The fluorescence emission peak of the luminous gold-silver bimetallic nanocluster is about 700 nm, and when viewed on a black background under ultraviolet light, it shows a relatively strong red fluorescence, and the quantum yield is 0.17.
Embodiment 2
[0036] The 3 mL 20 mmol / L N-acetyl-L-cysteine solution, 2 mL 10 mmol / L chloroauric acid solution and 2.5 mL 4 mmol / L silver nitrate solution were mixed, the mixture was stirred evenly and the heating temperature was controlled to be returned at 80 °C for 6 h, and after cooling, it was removed to obtain an aqueous solution of gold and silver bimetallic nanoclusters. The fluorescence emission peak of the luminous gold-silver bimetallic nanocluster is about 700 nm, and when viewed on a black background under ultraviolet light, it shows a relatively strong red fluorescence, and the quantum yield is 0.21.
Embodiment 3
[0038]3 mL 10 mmol / L N-acetyl-L-cysteine solution, 2 mL 10 mmol / L chlorohydranoic acid solution and 2.5 mL 4 mmol / L silver nitrate solution were mixed, the mixture was stirred evenly and the heating temperature was controlled to 80 °C reflux for 12 h, and after cooling, it was removed to obtain an aqueous solution of gold and silver bimetallic nanoclusters. The fluorescence emission peak of the luminous gold-silver bimetallic nanocluster is about 700 nm, and when viewed on a black background under ultraviolet light, it shows a relatively strong red fluorescence, and the quantum yield is 0.19.
PUM
| Property | Measurement | Unit |
|---|---|---|
| The average particle size | aaaaa | aaaaa |
| Potential value | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More