CN1267570A - Photocatalyst carrier - Google Patents
Photocatalyst carrier Download PDFInfo
- Publication number
- CN1267570A CN1267570A CN 00104338 CN00104338A CN1267570A CN 1267570 A CN1267570 A CN 1267570A CN 00104338 CN00104338 CN 00104338 CN 00104338 A CN00104338 A CN 00104338A CN 1267570 A CN1267570 A CN 1267570A
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- photocatalyst
- fiber
- carrier
- oxidative resistance
- adhesive
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Abstract
The photocatalyst carrier of the present invention can maintain large amount of photocatalyst matter at high efficiency and gaps for air to flow fluently and raise the contact efficiency of photocatalyst matter, and may be regenerated simply after being degraded. The method of the present invention is that photocatalyst is fixed by adhesive onto the surface of metal base catalyst carrier. The metal base is stacked metal fiber in the stereo non-woven structure with excellent ventilation property, and preferably in the fiber structure each square meter has 200-2000 g metal fiber of 50-250 micron size.
Description
The present invention can effectively keep the photochemical catalyst material about a kind of, improves the capacity of decomposition of photochemical catalyst material, can effectively carry out the carrier of photocatalyst of regenerating and handling simply again simultaneously.
As everyone knows, method in the past is to utilize the oxidability of photochemical catalyst, and oxidation Decomposition is removed airborne stench and harmful substance, and the method is used in aspects such as air purifier, room air conditioner.Be installed in the carrier of photocatalyst in these machines, generally being to use paper is base material, to wherein contain the atomic paper conversion of photochemical catalyst and become wavy, remake into honey comb structure, utilize adhesive that photochemical catalyst is fixed in honeycomb official form for filing a lawsuit surface as filter, limit irradiation ultraviolet radiation, limit allow air pass through, to decompose, to remove harmful substance and stench.
Yet, this kind with the paper that contains photocatalyst particles as carrier of photocatalyst, because the photochemical catalyst particulate is to be detained to be fixed between the fiber of paper, therefore, the photocatalysis dosage that is contained in the paper is at below 10% of paper volume, and actually exists in the paper surface, helps the photocatalysis dosage of oxidation reaction, at most only have an appointment about 1% at most, so the problem of efficient extreme difference is arranged.In addition, honeycomb structure is that rectification, laminar flow pass through air wherein, therefore also exist harmful substance and the extremely low problem of photocatalyst particles contact probability in the air, in order to improve the contact probability of honeycomb body, also once attempted thickness setting with the honeycomb body about about 10mm, but think that the purpose that mat thickness makes whole honeycomb body be able to homogeneous irradiation ultraviolet radiation light is difficult to reach, so can't expect to improve decomposition efficiency.
The present invention desires to provide can effectively improve the photochemical catalyst physical efficiency and keep a large amount of photochemical catalyst materials, and allowing air flow has abundant space, to improve the contacting efficiency with the photochemical catalyst material, the carrier of photocatalyst of more effective regeneration simply again after deterioration simultaneously.
For solving above-mentioned problem, the method applied in the present invention is the carrier of photocatalyst that a kind of mat adhesive is fixed on the photochemical catalyst material metal system substrate surface, it is characterized in that, metal system base material is piled up by metallic fiber, good by aeration, have the nonwoven shape fiber construct of stereochemical structure to be constituted, preferred fiber construct is at average per 1 square metre of area, and weight accumulation 200 grams are to the metallic fiber person of 50 microns of 2000 grams, diameter and even 250 microns.
The feature of metallic fiber is that it is by the formed aluminum fiber of melt spinning method.
The feature of fiber construct, be that it is by the adhesive surface treatment of surface through the tool oxidative resistance, the metallic fiber that forms the oxidative resistance film constitutes, the adhering substance of this tool oxidative resistance is to be main component with the silicon compound, and the most desirable person is characterized by by the obtained person of organo-silicon compound hydrolysis.
The adhering substance of oxidative resistance is characterized in that it is silicone resin or fluororesin or is the mixture of the two.
Below describe the optimal example of the present invention in detail.The present invention is a kind of carrier of photocatalyst, it is characterized in that, it is base material that the metallic fiber made from melt spinning method forms the nonwoven shape stereoisomer with the thickness of being wanted, and utilizes adhesive the photochemical catalyst material to be fixed on the fiber surface of this base material.Obtaining metallic fiber with melt spinning method is a kind of extraordinary method, to be metal remain in the airtight container with the solution state of fusion for it, gas-pressurized is delivered in this closed container then, utilize this gas metallic solution surface of exerting pressure, make molten metal rise to the molten metal supply pipe, this liquation is ejected to the atmosphere from the spinning head ejiction opening then, promptly produces metallic fiber through cooled and solidified rapidly again, discloses as the public clear 63-3971 communique of spy.The metallic fiber aspect, then appropriate with aluminum fiber, optimal fiber construct is at average per 1 square metre of area, and weight accumulation 200 grams have the fiber construct person of stereochemical structure simultaneously to the metallic fiber of 50 microns of 2000 grams, diameter and even 250 microns for the good nonwoven shape of aeration.
Shown in Fig. 1 photo, be many groove structures by the made aluminum fiber surface of melt spinning method, its advantage is that the ganoid fiber of per unit surface ratio can carry the more photochemical catalyst material of volume.In addition, in this spin processes, utilize pressurization that the aluminium of fusion is ejected to continuously from multi-holed jet and make it into fibrously the air, form continuous long fibre.Occasion on the conveyer belt that this fiber accumulations is to move in the random air-flow shown in Fig. 2 photo, can produce mixed and disorderly, as to have the nonwoven shape stereochemical structure of impartial voidage fiber construct.With the produced fiber construct of this kind method, because aeration is good, have bigger specific area, be suitable as carrier of photocatalyst most.
Metallic fiber forms the film of oxidative resistance through having the surface treatment of oxidative resistance adhesive, is expected to improve its physical characteristic and chemical strength.The formed oxidative resistance film of mat this fiber surface of work, the fluffiness that fibre cutting caused in can preventing to use can prevent the oxidation of aluminium simultaneously.The adhesive of tool oxidative resistance is a main component with silicon compounds such as silica or peroxidating silicon, perhaps uses silicone resin, fluororesin or its mixture all fine.The silicon compound aspect is the most effective with the Ludox that the organo-silicon compound hydrolysis of alkoxyl silicone alkanes is obtained.The photochemical catalyst material is fixed on the method for fiber construct fiber surface, be not particularly limited, can use general known method, but utilize infusion process or coating process in this recommendation, the coating liquid that will contain titanium dioxide particle and some amount adhesives is coated in fiber surface, mat dry or hot sticky fixed.Coating liquid also can mix an amount of adsorbent.
Why use 50 microns to 250 microns aluminum fiber,, then be difficult to manufacture the stereoisomer of nonwoven shape than 250 microns thicker fibers because of very difficulty and expensive price of the fiber manufacturing than 50 microns thinner.In addition, every square metre weight accumulation is the reasons of 200 grams to 2000 grams, is if weight ratio 200 grams are few, the stereoisomer that is difficult to obtain well, and Duo than 2000 grams, the increase of the density of fiber is difficult to make have and can allows the structure in enough spaces of the smooth and easy circulation of air.Metallic fiber preferably uses aluminum fiber, but can also use metallic fibers such as stainless steel, nickel.At the material of the formed oxidative resistance film in metallic fiber surface, as described above, suitable with silicon compound, silica gel, resin etc.And the photochemical catalyst material is then appropriate with titanium dioxide, but, if be that the photochemical catalyst material also can with zinc oxide, strontium titanates etc.The photochemical catalyst material is adhered to sticker on the metallic fiber, ideal with adhesives such as silicon compound, silicone resin, fluororesin.
Embodiment
To utilize the prepared thick 130 microns aluminum fiber of melt spinning method, pile up, form the nonwoven shape fiber construct of mat form with thick 3mm with the ratio of every square metre 360 gram.Made and sold the silicon compound of ' FJ803F ' by name, the silica membrane of formation below 1 micron in the spraying of the surface of aluminum fiber by normal coil motor limited company.Photocatalyst coated liquid then mixes the emulsion of polytetrafluoroethylene (PTFE) 70 weight portions to be equivalent to titanium dioxide 30 weight portions, and it is sprayed at the aforementioned fibers structure, and baking is 1 hour under 380 ℃ temperature, can make carrier of photocatalyst.
For confirming the decomposition deodorizing performance of this carrier of photocatalyst, deodorizing performance experimental provision as shown in Figure 3, Figure 4 is installed, so that relatively with commercially available optical catalyst filter.With reference to Fig. 3, Fig. 4, the deodorizing performance experimental provision disposes fan (2) and the ultraviolet lamp (3) that sucks air in basket (1), about the ultraviolet lamp (3), the carrier of photocatalyst of the present invention (4) or the optical catalyst filter of usefulness relatively is installed.When carrier of photocatalyst of the present invention uses, be to be 1 unit with two layers of laminate.And comparative example is to use the former industry of stone limited company to make and sell ' P-ST-H11 ' by name, has the optical catalyst filter of the active carbon ripple type honeycomb structure of thickness 15mm.Experimental provision is arranged in 5 cubic metres the airtight laboratory, imports quantitative object gas and carries out circulating ventilation, and per hour measure the residual concentration of ammonia, and the variation of ammonia concentration is as shown in table 1, and final speed shows that the decomposition deodorizing performance of the present invention's product is higher.
Table 1
| Ammonia residual concentration (ppm) | ||
| Time (branch) | The present invention's product | Comparative example |
| ????0 | ????10 | ????10 |
| ????10 | ????3 | ????4 |
| ????20 | ????1 | ????3 |
| ????30 | ????0.5 | ????2 |
| ????60 | ????0.2 | ????1.5 |
| ????90 | ????- | ????1 |
| ????120 | ????- | ????0.5 |
As shown in table 2 by the identical acetaldehyde that experimental technique carried out decomposition deodorizing performance experimental result.The decomposition deodorization speed of the present invention's product is more than 3 times of comparative example.Though the initial stage deodour by adsorber effect that comparative example useful activity charcoal is reached, and the participation of the reaction of titanium oxide thereafter is little, relatively, the present invention's product then demonstrate and utilize the decomposition deodorising effect that three-dimensional deployed configuration obtained of titanium oxide very big.
Table 2
| Acetaldehyde residual concentration (ppm) | ||
| Time (branch) | The present invention's product | Comparative example |
| ????0 | ????5 | ????5 |
| ????10 | ????3 | ????4 |
| ????20 | ????2 | ????3.5 |
| ????30 | ????1.5 | ????3 |
| ????60 | ????1 | ????2.5 |
| ????90 | ????- | ????2 |
Carrier of photocatalyst of the present invention is good and have a bigger specific area because of aeration, so containing the air of foul smelling and harmful substance can be with laminar flow, state that can sinuous flow passes through, fiber than Large ratio surface on can carry more photochemical catalyst material, to improve the amount contact with air.Again, because be the fiber construct of nonwoven shape, so it is good that light sees through the light transmission of structure inside, the diffuse reflection of mat work light metal surface simultaneously, ultraviolet ray can shine the fiber surface of overall optical catalyst carrier, and its result can decompose stench and the harmful substance that contacts with photochemical catalyst expeditiously.Moreover, carrier of photocatalyst causes deterioration as the material that adheres to because of fiber surface after odorant, harmful substance or the oxidation, when the oxidative decomposition capacity that the photochemical catalyst material is had descends, because of it is metallic article and the adhesive that uses mineral-type, therefore it is clean to be easy to washing, and handle with warm water and clean carrier of photocatalyst and can remove attachment material, and the oxidative decomposition capacity of initial stages of restoration state substantially, therefore, having after the deterioration regeneration handles and is easy to advantage.And, use paper, nonwoven, the glass fibre of poor water resistance to compare with tradition as the base material person, even through washing repeatedly, can vicissitudinous shortcoming yet, can keep the shape at initial stage, can not cause the puzzlement that re-uses the aspect.Moreover, because metallic article, so non-flame properties advantage is arranged.
The simple declaration of accompanying drawing
Fig. 1 is the enlarged photograph of aluminum fiber;
Fig. 2 is the enlarged photograph of fiber construct;
Fig. 3 is the inside front view of experimental provision;
Fig. 4 is the private side view of experimental provision.
The figure number explanation
(1) basket
(2) air suction fan
(3) ultraviolet lamp
(4) carrier of photocatalyst
Claims (7)
1. a carrier of photocatalyst is fixed in metal system substrate surface by adhesive with the photochemical catalyst material, it is characterized in that metal system base material is to be piled up by metallic fiber, has the fiber construct of the nonwoven shape of stereochemical structure to be constituted by the good aeration of tool.
2. carrier of photocatalyst as claimed in claim 1 is characterized in that, fiber construct is at average per 1 square metre of area, and weight accumulation 200 grams are to the metallic fiber of 50 microns of 2000 grams, diameter and even 250 microns.
3. carrier of photocatalyst as claimed in claim 1 or 2 is characterized in that, metallic fiber is for utilizing the formed aluminum fiber of melt spinning method.
4. carrier of photocatalyst as claimed in claim 1 or 2 is characterized in that, fiber construct is to be handled through the adhesive of tool oxidative resistance by the surface, and the metallic fiber that forms the film of oxidative resistance constitutes.
5. carrier of photocatalyst as claimed in claim 4 is characterized in that, the main component with oxidative resistance adhering substance is a silicon compound.
6. carrier of photocatalyst as claimed in claim 5 is characterized in that, silicon compound is to be obtained by the organo-silicon compound hydrolysis.
7. carrier of photocatalyst as claimed in claim 4 is characterized in that, the adhesive with oxidative resistance is silicone resin or fluororesin or is its mixture.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP72206/1999 | 1999-03-17 | ||
| JP11072206A JP2000262903A (en) | 1999-03-17 | 1999-03-17 | Photocatalyst carrier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1267570A true CN1267570A (en) | 2000-09-27 |
Family
ID=13482546
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00104338 Pending CN1267570A (en) | 1999-03-17 | 2000-03-17 | Photocatalyst carrier |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2000262903A (en) |
| CN (1) | CN1267570A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1940151B (en) * | 2005-09-29 | 2010-06-23 | 康那香企业股份有限公司 | Block type non-woven fabric having central fixing threads and polluted fluid purification method using the same |
| CN102233282A (en) * | 2010-04-30 | 2011-11-09 | 中国石油化工股份有限公司 | Fischer-Tropsch synthesis catalyst taking silicon oxide-aluminum oxide as carrier and application thereof |
| CN106283401A (en) * | 2016-08-19 | 2017-01-04 | 马鞍山湖滨无纺布科技有限公司 | A kind of have catalysis, can the non-woven fabrics and preparation method thereof of releasing negative oxygen ion continuously |
| CN110528170A (en) * | 2019-08-21 | 2019-12-03 | 杭州高烯科技有限公司 | A kind of compound nonwoven cloth of photocatalytic self-cleaning and preparation method thereof |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4624698B2 (en) * | 2004-03-12 | 2011-02-02 | 有限会社ヤマカツラボ | Photocatalyst carrying board |
| CN115521671B (en) * | 2022-09-30 | 2023-06-30 | 武汉苏泊尔炊具有限公司 | Wear-resistant anti-shoveling non-stick coating and manufacturing method thereof |
-
1999
- 1999-03-17 JP JP11072206A patent/JP2000262903A/en active Pending
-
2000
- 2000-03-17 CN CN 00104338 patent/CN1267570A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1940151B (en) * | 2005-09-29 | 2010-06-23 | 康那香企业股份有限公司 | Block type non-woven fabric having central fixing threads and polluted fluid purification method using the same |
| CN102233282A (en) * | 2010-04-30 | 2011-11-09 | 中国石油化工股份有限公司 | Fischer-Tropsch synthesis catalyst taking silicon oxide-aluminum oxide as carrier and application thereof |
| CN102233282B (en) * | 2010-04-30 | 2013-06-26 | 中国石油化工股份有限公司 | Fischer-Tropsch synthesis catalyst taking silicon oxide-aluminum oxide as carrier and application thereof |
| CN106283401A (en) * | 2016-08-19 | 2017-01-04 | 马鞍山湖滨无纺布科技有限公司 | A kind of have catalysis, can the non-woven fabrics and preparation method thereof of releasing negative oxygen ion continuously |
| CN110528170A (en) * | 2019-08-21 | 2019-12-03 | 杭州高烯科技有限公司 | A kind of compound nonwoven cloth of photocatalytic self-cleaning and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2000262903A (en) | 2000-09-26 |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |