A nanocluster that efficiently utilizes the surface plasmon resonance effect and its preparation method and application
A technology of surface plasmon and resonance effect, which is applied in the direction of nanotechnology, nanotechnology, nanotechnology, etc. for materials and surface science, can solve the problems that limit the wide application of surface plasmon resonance effect, and achieve good photocatalytic decomposition of aquatic products. The effects of hydrogen performance, controllable composition, and mild conditions of the preparation method
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Embodiment 1
[0035] A method for preparing a nanocluster efficiently utilizing the surface plasmon resonance effect, comprising the following steps:
[0036] At room temperature, 1ml of cyclohexane dispersed with 9nm Au nanocrystals and 3nm CdSe nanocrystals was mixed with 10ml of sodium dodecyl sulfate (SDS) aqueous solution to form a microemulsion under ultrasonic conditions. The ultrasonic power was 20% for 5 minutes. Wherein, the concentration of CdSe in the cyclohexane dispersion is 5 mg / ml, the concentration of Au in the cyclohexane dispersion is 1 mg / ml, and the concentration of sodium lauryl sulfate in the aqueous solution is 3 mg / ml.
[0037] The microemulsion was heated at 343K for 4h, separated and dried to obtain Au / CdSe nanoclusters.
[0038] The prepared Au / CdSe nanoclusters were characterized by transmission electron microscopy, figure 1 For the obtained electron micrograph of Au / CdSe nanoclusters, it can be seen that Au / CdSe nanoclusters are composed of Au nanocrystals and...
Embodiment 2
[0045] Repeat Example 1, the only difference is that the solubility of 9nm Au nanocrystals is 0.5 mg / ml, and Au / CdSe nanoclusters can still be obtained.
Embodiment 3
[0047] Repeat Example 1, the only difference is that the solubility of 9nm Au nanocrystals is 1.5 mg / ml, and Au / CdSe nanoclusters can still be obtained.
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