Large flux nanocrystalline photocatalysis air purifying device
An air purifier and photocatalytic technology, which is applied in stacked or spiral nanocrystalline photocatalytic air purifiers, photocatalytic air purifiers, and large-flux linear fields, can solve the problem of low energy utilization rate of light sources and space processing capacity. Poor, small contact area between catalyst and reactant, etc., to achieve the effect of improving space processing capacity, firm load and fast speed
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Embodiment 1
[0033] Embodiment 1: Assembly and manufacture of photocatalytic air cleaner
[0034] 1. Processing of porous quartz glass carrier
[0035] Quartz glass is processed into semi-circular cylindrical porous quartz glass of appropriate size by high-temperature blowing, thinning, bending, kneading and other blowing techniques; after cooling, it is treated with 3-5% hydrofluoric acid solution for 5 minutes, and then Wash with deionized water or distilled water until pH = 7, and finally wash with absolute ethanol, dehydrate, and dry before use;
[0036] 2. Carrier loaded photocatalyst
[0037] Prepare a 20% butyl titanate ethanol solution, add a certain amount of metal salt (Cu(Ac) 2 , AgNO 3 , FeCl 3 、CoCl 2 , Ni(NO 3 ) 2 , Tb(NO 3 ) 3 , Eu(NO 3 ) 3 ), the metal ion doping weight ratio is TiO 21% to 2% of the amount, stirred for 2 hours to obtain a stable and uniform transparent liquid; then the carrier was dipped and coated at room temperature for 10 minutes, taken out, ...
Embodiment 2
[0040] Embodiment 2: Manufacture and air sterilization of linear one-piece air cleaner
[0041] According to attached Figure 4 and Figure 7 As shown, the assembly and manufacture of the linear one-piece air cleaner is the same as in Example 1. It is a thin cuboid as a whole, and its dimensions are: length 1040mm, width 860mm, thickness 86mm, the power of the ultraviolet lamp is 39W and the center of the luminescent spectrum The wavelength is 258.7nm, the optical path R of the porous quartz glass carrier is 30mm, and the height is 30-50mm.
[0042] Blown Porous Quartz Glass Loaded Nano-TiO 2 Photocatalyst, the transmittance of porous quartz glass in the wavelength range of 200-800nm is greater than 90%, and the density is 0.70g / cm 3 , The porosity is 72%. Nano-TiO 2 The metal ion doping amount in the photocatalyst is TiO 2 1.2% (weight ratio) of the total amount, of which Ag + (Its salt is selected from AgNO 3 ) is 0.8%, Cu 2+ (Its salt is selected from Cu(Ac) 2 )...
Embodiment 3
[0045] Embodiment 3: the manufacture of folding type (or spiral type) one-piece air cleaner and its degradation formaldehyde
[0046] According to attached Figure 5 (or Figure 6 ), the assembly and manufacture of the foldable (or spiral) one-piece air cleaner is the same as in Example 1. It is a cuboid as a whole, and its size is: high 1040mm, wide 600mm, thickness 500mm, and the power of the ultraviolet lamp is 39W And the central wavelength of the emission spectrum is 258.7nm, the optical path R of the porous quartz glass carrier is 30mm, and the height is 30-50mm.
[0047] Blown Porous Quartz Glass Loaded Nano-TiO 2 Photocatalyst, the transmittance of porous quartz glass in the wavelength range of 200-800nm is greater than 90%, and the density is 0.85g / cm 3 , The porosity is 68%. Nano-TiO 2 The metal ion doping amount in the photocatalyst is TiO 2 1.5% (weight ratio) of the total amount, of which Ag + (Its salt is selected from AgNO 3 ) is 0.5%, Cu 2+ (Its salt...
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