Gold nanoparticle/graphene three-dimensional photothermal conversion material and application thereof
A light-to-heat conversion material and gold nanoparticle technology, applied in the chemical field, can solve the problems of inability to realize light energy conversion, storage, and light energy utilization, and achieve the effect of light weight, multi-scale pore structure, and high porosity
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[0032] (1) Preparation of gold nanoparticles of different sizes
[0033] Synthetic seed crystals by sodium citrate method: In the preparation process, first add a certain amount of chloroauric acid into a 250ml three-necked bottle, heat it under reflux to 99°C, and then add lemon to the chloroauric acid solution in high-speed stirring Sodium acid solution, the solution will turn from gray to blue and finally wine red, which proves that the gold nanoparticles have been successfully prepared. After continuing to heat and stir for 30 minutes, stop the reaction. (Note: All containers for the reaction were soaked in a mixed solution of concentrated sulfuric acid and potassium dichromate for 30 minutes, washed with distilled water repeatedly after soaking, and finally dried in a vacuum oven for use)
[0034] Using mercaptosuccinic acid (MSA) as a reducing agent to prepare gold nanoparticles with a particle size range of 20-150nm. First add 0.8ml 5×10 to a 100ml round bottom flask ...
Embodiment 2
[0041] Example 2 purposes
[0042] The three-dimensional gold nanoparticle / graphene material can be used as a light-to-heat (steam) conversion material to realize seawater desalination; the gold nanoparticle / graphene material light-to-heat conversion device of the present invention can efficiently convert light energy into heat energy, and can quickly Seawater is heated into water vapor, and the distilled water is collected through the reflux device to obtain pure water without salt, thereby realizing seawater desalination.
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