研究目的
To develop a system of silica cubes suitable for static and dynamic light scattering experiments, focusing on cubic particles not exceeding a size of approximately 200 nm.
研究成果
Cuprous oxide nanoparticles can be reproducibly obtained with sizes in the range of 40 to 120 nm and coated with silica to control shell thickness and particle shape. Hollow silica nanocubes exhibit long-term colloidal stability, making them suitable for light scattering studies.
研究不足
The synthesis outcome is sensitive to conditions such as temperature profile and reagent purity. Upscaling the synthesis requires careful consideration due to potential changes in particle size and morphology.
1：Experimental Design and Method Selection:
The study employs a water-assisted polyol method for preparing cuprous oxide nanocubes, followed by coating with St?ber silica to form core-shell nanocubes. The core is then dissolved with nitric acid to produce hollow silica nanocubes.
2：Sample Selection and Data Sources:
Cuprous oxide nanocubes are synthesized with varying amounts of water to adjust size.
3：List of Experimental Equipment and Materials:
Includes copper(II) acetylacetonoate, polyvinylpyrrolidone, tetraethyl orthosilicate, and nitric acid among others.
4：Experimental Procedures and Operational Workflow:
Detailed steps for synthesizing cuprous oxide nanocubes, coating with silica, and dissolving the core to obtain hollow silica nanocubes.
5：Data Analysis Methods:
Transmission electron microscopy (TEM) and infrared spectroscopy (IR) are used for particle size and shape analysis.
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