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Continuous mobile type purifying air and water nano-crystalline photocatalysis reactor

A photocatalytic reactor, air purification technology, applied in chemical instruments and methods, perfluorocarbon/hydrofluorocarbon capture, chemical/physical/physical-chemical processes of applied energy, etc., can solve the problem of catalyst and reactant Small contact area, low energy utilization rate of light source, etc., to achieve the effect of fast speed, strong degradation ability and large reaction area

Active Publication Date: 2008-02-13
NINGBO ZHEKAI ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The various photocatalytic reactors mentioned above have their own advantages and design purposes, but there are disadvantages such as low energy utilization of the light source and small contact area between the catalyst and the reactant.

Method used

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  • Continuous mobile type purifying air and water nano-crystalline photocatalysis reactor
  • Continuous mobile type purifying air and water nano-crystalline photocatalysis reactor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Embodiment 1: the manufacture of photocatalytic reactor

[0031] 1. Design and processing of reactor components

[0032] According to the composition requirements of each part of the reactor, design drawings and process or purchase each part for spare use;

[0033] 2. Processing of porous quartz glass carrier

[0034] Hydrogen and oxygen are respectively discharged from the gas cylinder through the pressure reducing valve to the nozzle for combustion, and processed into a semi-circular cylindrical porous quartz glass of a certain size through high-temperature blowing techniques such as thinning, bending, and kneading; after cooling Treat with 3-5% hydrofluoric acid solution for 5 minutes, then wash with deionized water or distilled water to pH=7, and finally wash with absolute ethanol, dehydrate and dry for later use;

[0035] 3. Load photocatalyst on the carrier

[0036] Prepare a 20% butyl titanate ethanol solution, add a certain amount of metal salt (Cu(Ac) 2 , A...

Embodiment 2

[0039] Embodiment 2: the manufacture of photocatalytic air cleaner and its degradation formaldehyde

[0040] The size of the reactor can be: high 933mm, outer diameter 64mm, inner diameter 61mm, optical path R=17.8mm, the power of the ultraviolet lamp is 39W and the central wavelength of the luminescent spectrum is 258.7nm, and the optical path R of the porous quartz glass carrier= 17.8mm, height 30-50mm.

[0041] 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 Photocatalyst metal ion doping amount is TiO 2 2% (mass percentage) of the amount, the metal salt is selected from Cu(Ac) 2 . The calcining temperature and time are 10 minutes at 500°C.

[0042] As shown in Figure 2, a photocatalytic air purifier can be obtained by combining two photocatalytic reactors in series. The photocatalytic air pur...

Embodiment 3

[0043] Example 3: Manufacture of Photocatalytic Water Treatment Device and Sterilization of Drinking Water

[0044] The size of the reactor can be: high 933mm, outer diameter 64mm, inner diameter 61mm, optical path R=17.8mm, the power of the ultraviolet lamp is 39W and the central wavelength of the luminescent spectrum is 258.7nm, and the optical path R of the porous quartz glass carrier= 17.8mm, height 30-50mm.

[0045] 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 Photocatalyst metal ion doping amount is TiO 2 3% (mass percentage) of the amount, the metal salt is selected from AgNO 3 . The calcination temperature and time are 30 minutes at 450°C.

[0046] As shown in Figure 3, a photocatalytic water treatment device can be obtained by combining 10 photocatalytic reactors in series and in paral...

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Abstract

The present invention discloses a continuously-flowing style nano-crystal photocatalysis reactor for purifying air and water. The key technology lies in that a catalyst fixed phase (2) is a nanometer TiO2 photocatalyst loaded by porous quartz glass. A transmittance of the porous quartz glass with a wavelength range of 200nm to 800nm is more than 90%, and a density is 0.5 g / cm3 to 0.9 g / cm3, and a voidage is 65% to 75%. The present invention uses the porous quartz glass as a carrier to make a TiO2 dopant deposit at the inner surface of the porous quartz glass as the photocatalyst; the porous quartz glass double characteristics of a good transmittance and being larger than surface area are used to increase the photocatalysis ability and efficiency; the structures of a plate membrane and a pipe membrane etc which are traditionally used in similar equipments are changed, and the disadvantages in the traditional structures of a small contact area of the photocatalyst and the reactants and a high loss rate of light source energy resulted from the carrier etc are conquered, which make the nano-crystal photocatalysis reactor enter into an high-efficiency and practical phase.

Description

technical field [0001] The invention relates to the design and manufacture of a continuous-flow nanocrystal photocatalytic reactor for purifying air and water, an indoor air purifier and a drinking water purification treatment device, and belongs to the technical field of nano-semiconductor membrane material photocatalytic reactors. Background technique [0002] As indoor building decoration materials, furniture, adhesives and paints used in the decoration process, as well as detergents, cosmetics and other chemical synthetic products used in daily life, a large amount of volatile organic compounds, including formaldehyde and benzene series, will be released into the room. Compounds, chlorides, ketones, hydrocarbons, etc. are harmful to human health to varying degrees. Therefore, the nano-semiconductor photocatalytic reactor has become a research hotspot, and it can be used for air purification in places such as homes, hospitals, dance halls, conference rooms, and cultural r...

Claims

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Application Information

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IPC IPC(8): B01J19/12B01J8/02B01D53/86C02F1/32A61L9/20
CPCY02C20/30
Inventor 雷闫盈
Owner NINGBO ZHEKAI ELECTRIC CO LTD