A preparation method of photocatalytic material for degrading air pollutants by using LED light source
A technology of air pollutants and LED light sources, applied in chemical instruments and methods, physical/chemical process catalysts, metal/metal oxide/metal hydroxide catalysts, etc., can solve problems such as high cost and low efficiency, and achieve equipment The effect of less material, low cost and high removal efficiency
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Embodiment 1
[0026] Add tourmaline powder with a particle size of 3000 mesh into 20mL of absolute ethanol, the doping amount is 0.2 wt%, and under constant stirring, add 10mL of butyl titanate and 1mL of acetylacetone, and stir well to form A solution; add 0.8 Mix wt% lanthanum nitrate with 20mL absolute ethanol, then add 2mL distilled water and 2.5mL glacial acetic acid to form solution B; mix 0.5 wt% hydrated chromium nitrate with 20mL absolute ethanol, then add 2mL distilled water, 2.5mL of glacial acetic acid to form solution C; under continuous stirring, add solution B dropwise to solution A to make it evenly mixed, then add solution C dropwise, continue stirring for 0.5h, and age for 20h to form a stable sol; Nickel foam cut into a size of 145mm×80mm is placed in the sol and dipped for 0.2h; pulled at a constant speed of 2cm / min by a pull coater, and dried in an oven at 120°C; dipping, pulling, and drying Repeat the operation twice; sinter at 400°C for 2 hours to obtain a photocataly...
Embodiment 2
[0029] Add tourmaline powder with a particle size of 4000 mesh into 20mL of absolute ethanol, the doping amount is 0.4 wt%, and under constant stirring, add 10mL of butyl titanate and 1mL of acetylacetone, and stir well to form A solution; Mix wt% lanthanum nitrate and cerium nitrate mixture (weight ratio 1:1) with 20mL of absolute ethanol, and then add 2mL of distilled water and 2.5mL of glacial acetic acid to form B solution; Mix copper (1:1) mixture with 20mL of absolute ethanol, and then add 2mL of distilled water and 2.5mL of glacial acetic acid to form C solution; under constant stirring, add B solution to A solution drop by drop to make it evenly mixed , then add solution C drop by drop, continue to stir for 1 hour, and age for 20 hours to form a stable sol; place the copper foam cut into a size of 145mm×80mm in the sol for 0.3 hours; Pull at a constant speed, put it in an oven and dry at 120°C; dip, pull, and dry repeatedly for 3 times; sinter at 500°C for 1.5 hours to...
Embodiment 3
[0032] Add tourmaline micropowder with a particle size of 5000 mesh into 20mL of absolute ethanol, and the doping amount is 0.6 wt%. Under constant stirring, add 10mL of butyl titanate and 1mL of acetylacetone, and stir to form A solution; 1.2 Mix wt% lanthanum nitrate and neodymium nitrate mixture (weight ratio 1:1) with 20mL absolute ethanol, then add 2mL distilled water and 2.5mL glacial acetic acid to form B solution; Mix ammonium molybdate (1:1) mixture with 20mL absolute ethanol, and then add 2mL distilled water and 2.5mL glacial acetic acid to form C solution; under constant stirring, add B solution dropwise to A solution to make it Mix evenly, then add solution C drop by drop, continue to stir for 2 hours, and age for 24 hours to form a stable sol; place nickel foam cut into a size of 145mm×80mm in the sol for 0.5h; use a pull coater at 1cm / min Pull at a constant speed at a constant speed, put it in an oven and dry at 180°C; dip, pull, and dry repeatedly for 4 times; s...
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