Preparation method of au@cu2-xse cage-like core-shell nanostructure
A nanostructure, core-shell technology, applied in the field of preparation of core-shell nanocomposite material technology
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0017] Au@Cu 2-x Concrete steps for the synthesis of Se cage-like core-shell nanostructures:
[0018] (1) Heat 100 ml of chloroauric acid aqueous solution (0.01 wt %) to boiling, then add 0.7 ml of sodium citrate aqueous solution (1 wt %), react under magnetic stirring for 25 min, then centrifuge, and then disperse to 5 ml In water, make gold colloidal solution;
[0019] (2) To 20 ml of 0.01 M CuSO 4 Add 0.2 g of PVP (polyvinylpyrrolidone) to the solution, stir it magnetically to dissolve it, then add 2 ml of gold colloidal solution, and finally add 5 ml of 0.1 M concentration of NaOH solution and 5 ml of 0.1 M concentration of AA (ascorbic acid), and react 0.5 h, then centrifuged, and then dispersed in 5 ml water to obtain Au@Cu 2 O core-shell nanocolloids;
[0020] (3) Add 0.5-1.5 mmol of selenium powder to 10 ml of 3-4 M NaOH solution, ultrasonically disperse for 5-10 minutes, and then add 0.5-1.5 mmol of KBH 4 , stirred at 3000-6000 rpm for 1-1.5 h, as a selenium sour...
Embodiment 2
[0023] Au@Cu 2-x Concrete steps for the synthesis of Se cage-like core-shell nanostructures:
[0024] (1) Heat 100 ml of chloroauric acid aqueous solution (0.01 wt %) to boiling, then add 0.7 ml of sodium citrate aqueous solution (1 wt %), react under magnetic stirring for 25 min, then centrifuge, and then disperse to 5 ml In water, make gold colloidal solution;
[0025] (2) To 20 ml of 0.01 M CuSO 4Add 0.2 g of PVP (polyvinylpyrrolidone) to the solution, stir it magnetically to dissolve it, then add 4 ml of gold colloidal solution, and finally add 5 ml of 0.1 M concentration of NaOH solution and 5 ml of 0.1 M concentration of AA (ascorbic acid), and react 0.5 h, then centrifuged, and then dispersed in 5 ml water to obtain Au@Cu 2 O core-shell nanocolloids;
[0026] (3) Add 0.5-1.5 mmol of selenium powder to 10 ml of 3-4 M NaOH solution, ultrasonically disperse for 5-10 minutes, and then add 0.5-1.5 mmol of KBH 4 , stirred at 3000-6000 rpm for 1-1.5 h, as a selenium sourc...
Embodiment 3
[0029] Au@Cu 2-x Concrete steps for the synthesis of Se cage-like core-shell nanostructures:
[0030] (1) Heat 100 ml of chloroauric acid aqueous solution (0.01 wt %) to boiling, then add 0.7 ml of sodium citrate aqueous solution (1 wt %), react under magnetic stirring for 25 min, then centrifuge, and then disperse to 5 ml In water, make gold colloidal solution;
[0031] (2) To 20 ml of 0.01 M CuSO 4 Add 0.2 g of PVP (polyvinylpyrrolidone) to the solution, stir it magnetically to dissolve it, then add 2 ml of gold colloidal solution, and finally add 5 ml of 0.1 M concentration of NaOH solution and 5 ml of 0.1 M concentration of AA (ascorbic acid), and react 0.5 h, then centrifuged, and then dispersed in 5 ml water to obtain Au@Cu 2 O core-shell nanocolloids;
[0032] (3) Add 0.5-1.5 mmol of selenium powder to 10 ml of 3-4 M NaOH solution, ultrasonically disperse for 5-10 minutes, and then add 0.5-1.5 mmol of KBH 4 , stirred at 3000-6000 rpm for 1-1.5 h, as a selenium sour...
PUM
Login to View More Abstract
Description
Claims
Application Information
Login to View More