CN101288822A - Purification apparatus for degrading the formaldehyde using TiO2/ZnO heterojunction composite membrane - Google Patents
Purification apparatus for degrading the formaldehyde using TiO2/ZnO heterojunction composite membrane Download PDFInfo
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- CN101288822A CN101288822A CNA2008100646901A CN200810064690A CN101288822A CN 101288822 A CN101288822 A CN 101288822A CN A2008100646901 A CNA2008100646901 A CN A2008100646901A CN 200810064690 A CN200810064690 A CN 200810064690A CN 101288822 A CN101288822 A CN 101288822A
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Abstract
The invention provides a purification device which degrades formaldehyde by TiO2/ZnO heterojunction composite film, and relates to a purification device which degrades the formaldehyde. The purification device aims at solving the problem that the existing purification device can not effectively degrade the formaldehyde. The upper end of the automatic controller of the invention is arranged in an installing hole (10-1) of a second clapboard (10); the upper end surface of the second clapboard (10) is provided with a lower-opening water tank (11); an n-shaped chamber (2) is arranged on the upper end surface of the second clapboard (10); at least two n-shaped brackets (4) are arranged in the n-shaped chamber (2); the two ends of the TiO2/ZnO heterojunction composite film (8) are respectively arranged in the concave troughs of two adjacent n-shaped brackets (4); a light source chamber (3) is arranged on the upper end surface of the second clapboard (10); an ultraviolet lamp light source (5) is arranged in the light source chamber (3). The purification device effectively degrades the formaldehyde, decomposes the toxic organic small molecular, and also has the advantages of strong bactericidal ability, simple and reasonable structure, simple preparation technology, low power dissipation, long service life and wide application range, etc.
Description
Technical field
The present invention relates to a kind of purifier of degradation of formaldehyde, belong to the air circulation purifier.
Background technology
Gas pollutants such as the organic matter of releases such as plant gas, vehicle exhaust, fossil fuel combustion waste gas, house fitting material and other bacterium, fungi just day by day seriously endanger ball ecological environment and human beings'health.The statistics of the World Health Organization shows, the world has nearly 1,700 ten thousand people dead every year because of infecting various diseases, the overwhelming majority propagates by circulation of air, live in for a long time in the environment of pollution, the nervous system of human body, respiratory system, immune system can work the mischief, and cause immunity degradation and relevant disease to produce.The degraded of organic pollution is undoubtedly importance wherein.The device that is used to improve air ambient at present roughly has following several: mechanical filter formula, mechanical filter+absorption type, electrostatic, anion formula.But the device that practicality and high efficiency is handled gaseous contaminant also lacks very much, and effectively the technology of organic molecule such as degradation of formaldehyde is still rare at home and abroad.Wide bandgap semiconductor has high photocatalytic, heat endurance and advantage such as nontoxic hard to tolerate, has become one of research focus in photochemistry field and the field of environment protection.People such as Greece C.C.Trapalis, Korea S Young Ug Ahn are to TiO
2For the film catalysis characteristics of representing material has carried out more in depth exploring, and proposed to improve TiO with methods such as overdoping oxide, change thin film substrate material, adjusting film compositions
2The catalytic degradation activity on surface.Kluson P, MengL.J. etc. have studied the influence of process conditions to the wide bandgap semiconductor film performance, and Snejana Bakardjieva etc. have obtained the mixed crystal material of different proportion by the Technology for Heating Processing of control to pure anatase wide bandgap semiconductor.The research beginning of China's wide bandgap semiconductor degradable material has been developed powder water treatment purifier model machine in the early 1990s.But this purifier is degradation of formaldehyde effectively.
Summary of the invention
The objective of the invention is to have the effectively degradation of formaldehyde problem that purifier exists now, and then a kind of TiO of utilization is provided in order to solve
2The purifier of/ZnO hetero-junctions laminated film degradation of formaldehyde.
Technical scheme of the present invention is: utilize TiO
2The purifier of/ZnO hetero-junctions laminated film degradation of formaldehyde is by main cavity, n font cavity, light source cavity, at least two n font supports, ultraviolet light source, oscillator, automatic controller, TiO
2/ ZnO hetero-junctions THIN COMPOSITE diaphragm, first dividing plate, second partition and under shed water tank are formed, the bottom of described main cavity is equipped with first dividing plate and second partition from down to up successively, have gas on described first dividing plate and enter the hole, on the upper surface of described first dividing plate oscillator is installed, have installing hole on the described second partition, the upper end of described automatic controller is arranged in the installing hole of second partition, the lower end of automatic controller is installed on the upper surface of oscillator, and controller and oscillator internal communication, the under shed water tank is installed on the upper surface of described second partition, the installation site of described under shed water tank is corresponding with the installation site of automatic controller, described n font cavity is arranged on the upper surface of second partition, the first leg corresponding section of described second partition and n font cavity has steam and enters the hole, have first gas outlet on the outer wall of the second leg bottom of described n font cavity, have second gas outlet on the corresponding wall of second leg of described main cavity and n font cavity, have air inlet on the main cavity of described first dividing plate below, described at least two n font supports are arranged in the n font cavity, the both sides of described at least two n font supports have one group of groove, described TiO
2The two ends of/ZnO hetero-junctions THIN COMPOSITE diaphragm are separately positioned in the groove of two adjacent n font supports, TiO
2The thickness of/ZnO hetero-junctions THIN COMPOSITE diaphragm is δ, described light source cavity is arranged on the upper surface of the second partition in the n font cavity, ultraviolet light source is arranged in the light source cavity, and described light source cavity and the corresponding two side of n font cavity are made by silica glass material.
The present invention compared with prior art has following beneficial effect: the present invention's formaldehyde of effectively having degraded, simultaneously poisonous organic molecule is resolved into harmless composition, the present invention has also that sterilizing ability is strong, simple and reasonable, preparation technology is simple, low in energy consumption, the life-span long and advantage such as applied range.
Description of drawings
Fig. 1 is that master of the present invention looks cross-sectional schematic, and Fig. 2 is the A-A cutaway view of Fig. 1.
The specific embodiment
The specific embodiment one: in conjunction with Fig. 1～Fig. 2 present embodiment is described, present embodiment is by main cavity 1, n font cavity 2, light source cavity 3, at least two n font supports 4, ultraviolet light source 5, oscillator 6, automatic controller 7, TiO
2/ ZnO hetero-junctions THIN COMPOSITE diaphragm 8, first dividing plate 9, second partition 10 and under shed water tank 11 are formed, the bottom of described main cavity 1 is equipped with first dividing plate 9 and second partition 10 from down to up successively, have gas on described first dividing plate 9 and enter hole 9-1, oscillator 6 is installed on the upper surface of described first dividing plate 9, have installing hole 10-1 on the described second partition 10, the upper end of described automatic controller 7 is arranged in the installing hole 10-1 of second partition 10, the lower end of automatic controller 7 is installed on the upper surface of oscillator 6, and controller 7 and oscillator 6 internal communication, under shed water tank 11 is installed on the upper surface of described second partition 10, the installation site of described under shed water tank 11 is corresponding with the installation site of automatic controller 7, described n font cavity 2 is arranged on the upper surface of second partition 10, the first leg 2-1 corresponding section of described second partition 10 and n font cavity 2 has steam and enters hole 10-2, have the first gas outlet 2-3 on the outer wall of the second leg 2-2 bottom of described n font cavity 2, have the second gas outlet 1-1 on the corresponding wall of the second leg 2-2 of described main cavity 1 and n font cavity 2, have air inlet 1-2 on the main cavity 1 of described first dividing plate 9 belows, described at least two n font supports 4 are arranged in the n font cavity 2, the both sides of described at least two n font supports 4 have one group of groove 4-1, described TiO
2The two ends of/ZnO hetero-junctions THIN COMPOSITE diaphragm 8 are separately positioned in the groove 4-1 of two adjacent n font supports 4, TiO
2The thickness of/ZnO hetero-junctions THIN COMPOSITE diaphragm 8 is δ, described light source cavity 3 is arranged on the upper surface of the second partition 10 in the n font cavity 2, ultraviolet light source 5 is arranged in the light source cavity 3, and described light source cavity 3 is made by silica glass material with n font cavity 2 corresponding two sides.
The specific embodiment two: in conjunction with Fig. 2 present embodiment is described, the TiO of present embodiment
2The thickness δ of/ZnO hetero-junctions THIN COMPOSITE diaphragm 8 is 100nm～300nm.So be provided with, the degradation effect of PARA FORMALDEHYDE PRILLS(91,95) is better, and sterilizing ability is stronger.Other composition is identical with the specific embodiment one with annexation.
The specific embodiment three: in conjunction with Fig. 2 present embodiment is described, the number of the n font support 4 of present embodiment is 2～6.So be provided with, the degradation effect of PARA FORMALDEHYDE PRILLS(91,95) is better, and sterilizing ability is stronger.Other composition is identical with the specific embodiment one with annexation.
The specific embodiment four: in conjunction with Fig. 1 present embodiment is described, the n font support of present embodiment 4 is made by stainless steel material.So be provided with, the degradation effect of PARA FORMALDEHYDE PRILLS(91,95) is better, and sterilizing ability is stronger.Other composition is identical with the specific embodiment one with annexation.
The specific embodiment five: in conjunction with Fig. 1 present embodiment is described, the wavelength of the ultraviolet light source 5 of present embodiment is 280nm～500nm.So be provided with, the degradation effect of PARA FORMALDEHYDE PRILLS(91,95) is better, and sterilizing ability is stronger.Other composition is identical with the specific embodiment one with annexation.
The specific embodiment six: in conjunction with Fig. 1 present embodiment is described, the groove 4-1 of n font support 4 both sides of present embodiment is an inclined groove, and the tilt angle alpha of inclined groove is 45 °.So be provided with. structure is more reasonable.Other composition is identical with the specific embodiment one with annexation.
The specific embodiment seven: in conjunction with Fig. 1 present embodiment is described, the groove 4-1 of n font support 4 both sides of present embodiment is crisscross arranged.So be provided with, structure is more reasonable.Other composition is identical with the specific embodiment one with annexation.
The specific embodiment eight: in conjunction with Fig. 1 present embodiment is described, first gas outlet 2-2 on the n font cavity 2 of present embodiment and the second gas outlet 1-1 on the main cavity 1 are crisscross arranged.So be provided with, structure is more reasonable.Other composition is identical with the specific embodiment one with annexation.
The course of work of the present invention: air is sucked through the air inlet 1-2 on the main cavity 1 by fan, and the low-temperature receiver steam that provides with automatic controller 7 in the cavity of oscillator 6 is mixed and enters in the n font cavity 2, through TiO
2/ ZnO hetero-junctions THIN COMPOSITE diaphragm 8 purifies, and is external by the second gas outlet 1-1 discharge side on the main cavity 1, realizes the self-circulation purifying process of air.
Claims (8)
1, a kind of TiO that utilizes
2The purifier of/ZnO hetero-junctions laminated film degradation of formaldehyde, it is by main cavity (1), n font cavity (2), light source cavity (3), at least two n font supports (4), ultraviolet light source (5), oscillator (6), automatic controller (7), TiO
2/ ZnO hetero-junctions THIN COMPOSITE diaphragm (8), first dividing plate (9), second partition (10) and under shed water tank (11) are formed, the bottom that it is characterized in that described main cavity (1) is equipped with first dividing plate (9) and second partition (10) from down to up successively, have gas on described first dividing plate (9) and enter hole (9-1), oscillator (6) is installed on the upper surface of described first dividing plate (9), have installing hole (10-1) on the described second partition (10), the upper end of described automatic controller (7) is arranged in the installing hole (10-1) of second partition (10), the lower end of automatic controller (7) is installed on the upper surface of oscillator (6), and controller (7) and oscillator (6) internal communication, under shed water tank (11) is installed on the upper surface of described second partition (10), the installation site of described under shed water tank (11) is corresponding with the installation site of automatic controller (7), described n font cavity (2) is arranged on the upper surface of second partition (10), first leg (2-1) corresponding section of described second partition (10) and n font cavity (2) has steam and enters hole (10-2), have first gas outlet (2-3) on the outer wall of second leg (2-2) bottom of described n font cavity (2), have second gas outlet (1-1) on the corresponding wall of second leg (2-2) of described main cavity (1) and n font cavity (2), have air inlet (1-2) on the main cavity (1) of described first dividing plate (9) below, described at least two n font supports (4) are arranged in the n font cavity (2), the both sides of described at least two n font supports (4) have one group of groove (4-1), described TiO
2The two ends of/ZnO hetero-junctions THIN COMPOSITE diaphragm (8) are separately positioned in the groove (4-1) of adjacent two n font supports (4), TiO
2The thickness of/ZnO hetero-junctions THIN COMPOSITE diaphragm (8) is δ, described light source cavity (3) is arranged on the upper surface of the second partition (10) in the n font cavity (2), ultraviolet light source (5) is arranged in the light source cavity (3), and described light source cavity (3) is made by silica glass material with the corresponding two side of n font cavity (2).
2, according to the described TiO that utilizes of claim 1
2The purifier of/ZnO hetero-junctions laminated film degradation of formaldehyde is characterized in that described TiO
2The thickness δ of/ZnO hetero-junctions THIN COMPOSITE diaphragm (8) is 100nm～300nm.
3, according to the described TiO that utilizes of claim 2
2The purifier of/ZnO hetero-junctions laminated film degradation of formaldehyde, the number that it is characterized in that described n font support (4) is 2～6.
4, according to the described TiO that utilizes of claim 3
2The purifier of/ZnO hetero-junctions laminated film degradation of formaldehyde is characterized in that described n font support (4) made by stainless steel material.
5, according to the described TiO that utilizes of claim 4
2The purifier of/ZnO hetero-junctions laminated film degradation of formaldehyde, the wavelength that it is characterized in that described ultraviolet light source (5) is 280nm～500nm.
6, according to the described TiO that utilizes of claim 5
2The purifier of/ZnO hetero-junctions laminated film degradation of formaldehyde is characterized in that the groove (4-1) of described n font support (4) both sides is an inclined groove, and the tilt angle alpha of inclined groove is 45 °.
7, according to the described TiO that utilizes of claim 6
2The purifier of/ZnO hetero-junctions laminated film degradation of formaldehyde is characterized in that the groove (4-1) of described n font support (4) both sides is crisscross arranged.
8, according to the described TiO that utilizes of claim 7
2The purifier of/ZnO hetero-junctions laminated film degradation of formaldehyde is characterized in that second gas outlet (1-1) on first gas outlet (2-2) and the main cavity (1) on the described n font cavity (2) is crisscross arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100646901A CN101288822A (en) | 2008-06-10 | 2008-06-10 | Purification apparatus for degrading the formaldehyde using TiO2/ZnO heterojunction composite membrane |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100646901A CN101288822A (en) | 2008-06-10 | 2008-06-10 | Purification apparatus for degrading the formaldehyde using TiO2/ZnO heterojunction composite membrane |
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| CN101288822A true CN101288822A (en) | 2008-10-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100646901A Pending CN101288822A (en) | 2008-06-10 | 2008-06-10 | Purification apparatus for degrading the formaldehyde using TiO2/ZnO heterojunction composite membrane |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1073122A (en) * | 1991-12-13 | 1993-06-16 | 中国科学院兰州化学物理研究所 | The photochemical catalyst that is used to purify air |
| US6358478B1 (en) * | 1994-12-28 | 2002-03-19 | Benrad Aktiebolag | Method and apparatus for treatment of fluids |
| CN2538412Y (en) * | 2002-05-09 | 2003-03-05 | 复旦大学 | Photocatalysis air pollution treater for self-extracting airflow transporter |
| CN1415404A (en) * | 2002-11-30 | 2003-05-07 | 哈尔滨工业大学 | Novel photocatalysis reactor for treating organic waste gas |
-
2008
- 2008-06-10 CN CNA2008100646901A patent/CN101288822A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1073122A (en) * | 1991-12-13 | 1993-06-16 | 中国科学院兰州化学物理研究所 | The photochemical catalyst that is used to purify air |
| US6358478B1 (en) * | 1994-12-28 | 2002-03-19 | Benrad Aktiebolag | Method and apparatus for treatment of fluids |
| CN2538412Y (en) * | 2002-05-09 | 2003-03-05 | 复旦大学 | Photocatalysis air pollution treater for self-extracting airflow transporter |
| CN1415404A (en) * | 2002-11-30 | 2003-05-07 | 哈尔滨工业大学 | Novel photocatalysis reactor for treating organic waste gas |
Non-Patent Citations (1)
| Title |
|---|
| 乔莉: "甲醛废气净化处理的研究进展", 环境保护相关领域研究进展 * |
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Open date: 20081022 |