Preparation method and application of MOFs/biomass-based carbon composite photothermal conversion material based on interface photothermal conversion
A light-to-heat conversion material and light-to-heat conversion technology, applied in lighting and heating equipment, chemical instruments and methods, solar collector components, etc., can solve problems such as poor hydrophilicity, speed up evaporation rate, increase solar energy The effect of utilization
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Embodiment 1
[0031] (1) Remove the outer skin and seeds of the loofah pulp, soak and wash with distilled water to remove impurities, dry, cut into lengths of the same size (3-4cm), put them in a porcelain boat and place them in a tube furnace, and put them into N 2 , raised to 800°C at a heating rate of 5°C / min, held for 2 hours and then cooled to room temperature to obtain a loofah-based carbon material (the SEM image of the material is shown in figure 2 ). 2mmol ZrOCl 2 .8H 2 O and 2mmol fumaric acid (molar ratio 1:1), 10ml formic acid and 20ml N,N-dimethylformamide solution Take 0.2 ~ 1 mg of loofah-based carbon powder material and disperse it in 20 ~ 100 ml of MOF801 In the solutions of the precursors, the MOF801 / loofah-based carbon composite photothermal conversion materials were obtained after magnetic stirring for 6-10 h in constant temperature water baths at different temperatures, washing with methanol, and vacuum drying at 60 °C for 24 h.
[0032] (3) A cylindrical polystyren...
Embodiment 2
[0038] (1) The obtained bamboo poles were cut into small pieces of 2 cm, cleaned with distilled water, and dried at 80° C. for 24 hours. Soak it in 6mol / L KOH solution for 24h, then dry it at 80℃, put it in a porcelain boat and put it in a tube furnace, and put it into N 2, raised to 800°C at a heating rate of 5°C / min, held for 2 hours and then cooled to room temperature to obtain a bamboo pole-based carbon material (SEM of the material is as follows Image 6 ). Add 2mmol of zinc acetate and 2mmol of 2-methylimidazole to 50ml of N,N-dimethylformamide solution to make liquid precursor solution, take 0.2g of bamboo-based carbon powder material and disperse it in 50ml of ZIF8 precursor solution, the mixed solution was added to a 100 ml hydrothermal reaction kettle, kept in a drying oven at a constant temperature of 160°C for 8 hours, washed with methanol three times, and vacuum-dried at 60°C to obtain a ZIF8 / bamboo-based carbon composite light-to-heat conversion material (SEM of...
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