Preparation method and application of aerogel-polypyrrole photo-thermal conversion material
A photothermal conversion and aerogel technology, applied in chemical instruments and methods, lighting and heating equipment, components of solar collectors, etc., can solve the problems of high price of carbon materials, difficult to produce, difficult to form films, etc. To achieve the effect of simple preparation process, increased adsorption capacity and good hydrophilic performance
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[0021] Example 1: Preparation method of airgel-polypyrrole photothermal conversion material
[0022] The method includes the following steps:
[0023] Step 1) synthesis of chitosan airgel
[0024] 1.1 Measure 3ml 1.5wt% chitosan solution, 1ml 5wt% PVA and 150uL glutaraldehyde into a clean small beaker in sequence (the mass ratio of chitosan, polyvinyl alcohol and glutaraldehyde is 1.2:1.33:1) .
[0025] 1.2 Add a clean magnet and stir magnetically for 30 minutes at room temperature.
[0026] 1.3 Put it into the freezer and freeze-dry for 36 hours.
[0027] Step 2) in situ polymerization
[0028] 2.1 Add 2.349g of FeCl 3 ·6H 2 O was dissolved in 18 mL of deionized aqueous solution and kept stirring until completely dissolved to obtain FeCl 3 solution.
[0029] 2.2 Place chitosan airgel in 3ml FeCl 3 Completely infiltrate the solution, then add 0.5ml of freshly distilled pyrrole (the mass ratio of pyrrole to chitosan airgel is 1:0.265), seal it with plastic wrap, and le...
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