Floating polypyrrole-TiO2/floating bead photocatalyst, and preparation method and application thereof
A catalyst, polypyrrole technology, used in physical/chemical process catalysts, organic compound/hydride/coordination complex catalysts, chemical instruments and methods, etc., can solve the problems of difficulty in recycling, waste of resources, etc. , easy to recycle, improve the effect of photocatalytic effect
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Embodiment 1
[0023] 1) Pretreatment of floating beads: Soak the floating beads extracted from fly ash with dilute nitric acid for 8 hours, then rinse with distilled water until the outflowing water is neutral, and dry them for later use;
[0024] 2) Using butyl titanate, absolute ethanol, acetylacetone, and ultrapure water as raw materials, the molar ratio of butyl titanate, absolute ethanol, acetylacetone, and ultrapure water is 1:26:1:1. Adjust the pH to 5 with concentrated nitric acid, stir to make it fully react, then add polyethylene glycol so that the molar ratio of butyl titanate to polyethylene glycol is 1000:1, heat and stir to fully dissolve it, and then obtain yellow Transparent TiO 2 Sol;
[0025] 3) To TiO 2 Add the pretreated floating bead carrier in step 1) to the sol, so that the mass ratio of butyl titanate to floating beads is 7:1, stir to mix evenly, and after immersing for 24 h, filter off the excess sol, and filter out The sample was dried, then placed in a muffle f...
Embodiment 2
[0038] 1) Fly ash floating bead pretreatment: Soak in 10% by weight dilute nitric acid for 8 hours, rinse with a large amount of distilled water until the outflowing water is neutral, and dry it for later use.
[0039] 2) Using butyl titanate, absolute ethanol, acetylacetone, and ultrapure water as raw materials, the molar ratio of butyl titanate, absolute ethanol, acetylacetone, and ultrapure water is 1:26:1:1. Adjust the pH to 5 with concentrated nitric acid, stir to make it fully react, then add polyethylene glycol so that the molar ratio of butyl titanate to polyethylene glycol is 1000:1, heat and stir to fully dissolve it, and then obtain yellow Transparent TiO 2 Sol;
[0040] 3) To TiO 2 Add the pretreated floating bead carrier in step 1) to the sol, so that the mass ratio of butyl titanate to floating beads is 7:1, stir to mix evenly, and after immersing for 24 h, filter off the excess sol, and filter out The sample was dried, then placed in a muffle furnace for calc...
Embodiment 3
[0049] 1) Fly ash floating bead pretreatment: Soak in 10% by weight dilute nitric acid for 8 hours, rinse with a large amount of distilled water until the outflowing water is neutral, and dry it for later use.
[0050] 2) Using butyl titanate, absolute ethanol, acetylacetone, and ultrapure water as raw materials, the molar ratio of butyl titanate, absolute ethanol, acetylacetone, and ultrapure water is 1:26:1:1. Adjust the pH to 5 with concentrated nitric acid, stir to make it fully react, then add polyethylene glycol so that the molar ratio of butyl titanate to polyethylene glycol is 1000:1, heat and stir to fully dissolve it, and then obtain yellow Transparent TiO 2 Sol;
[0051] 3) To TiO 2 Add the pretreated floating bead carrier in step 1) to the sol, so that the mass ratio of butyl titanate to floating beads is 7:1, stir to mix evenly, and after immersing for 24 h, filter off the excess sol, and filter out The sample was dried, then placed in a muffle furnace for calc...
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