CN104475094A - Diatom ooze wall material applied to non-photo-catalysis purification of formaldehyde in air at room temperature - Google Patents
Diatom ooze wall material applied to non-photo-catalysis purification of formaldehyde in air at room temperature Download PDFInfo
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- CN104475094A CN104475094A CN201410752210.6A CN201410752210A CN104475094A CN 104475094 A CN104475094 A CN 104475094A CN 201410752210 A CN201410752210 A CN 201410752210A CN 104475094 A CN104475094 A CN 104475094A
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- diatom ooze
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- room temperature
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Abstract
The invention discloses a diatom ooze wall material applied to non-photo-catalysis purification of formaldehyde in air at room temperature, relates to a room-temperature air purification agent and a formaldehyde-removing air purification coating, which aims to solve the problems that the process of removing pollutants by catalytic oxidation at the room temperature at present can be realized under the light condition and the cost is high. A room-temperature non-photo-catalysis air purification agent is prepared from tourmaline, nano-titanium dioxide and palladium. A formaldehyde-removing diatom ooze air purification coating is mainly prepared from powdered tourmaline, nano-titanium dioxide, kieselguhr and palladium.
Description
Technical field
The present invention relates to a kind of air at room temperature cleanser and remove formaldehyde air purifying paint.
Background technology
The lung cancer caused because of room air pollutions such as formaldehyde, benzene homologues, radon, ammonia, leukaemia, infertile, the illness such as fetal anomaly, cutaneum carcinoma, rhinocarcinoma, throat cancer is of common occurrence in recent years, and indoor decoration pollution is arch-criminal.The global population M & M that room air pollution causes, also constantly soaring, be classified as ten of human health by the World Health Organization and one of threaten greatly.Country Disease Control and Prevention Center sampling Detection investigation find, 7 one-tenth, China new clothes residential building there is finishing pollution, wherein 6 one-tenth formaldehydes.
Room temperature catalytic oxidation technology (Pt/TiO
2catalyst) appearance solve the difficult problem that room temperature removes the pollutants such as formaldehyde, and in " loaded noble metal catalyst be used for room temperature catalytic oxidation formaldehyde and indoor air purification " (" Chinese science " periodical publisher, " Science Bulletin " the 54th volume the 3rd phase in 2009) literary composition, emphasize " the oxidation activity of PARA FORMALDEHYDE PRILLS(91,95) putting in order as Pt/TiO from high to low
2>>Rh/TiO
2>Pd/TiO
2>Au/TiO
2>>TiO
2.Pt/TiO
2illustrate splendid catalyze oxidation of formaldehyde active, at 50000h
-1, under room temperature condition, the just formaldehyde of energy complete catalysts oxidation 100ppm.With Pt/TiO
2compare, at ambient temperature Rh/TiO
2the conversion ratio of PARA FORMALDEHYDE PRILLS(91,95) is only about 20%, and Pd/TiO
2, Au/TiO
2almost there is no the ability of catalyze oxidation of formaldehyde." (the 279th page of right-hand column final stage).Meanwhile, also 4 kinds of catalyst (Pt/TiO according to In-situ Infrared experimental result pragmatize in the document
2, Rh/TiO
2, Pd/TiO
2and Au/TiO
2) there is the reason of different catalyze oxidation of formaldehyde activity: at Pt/TiO
2on catalyst, formate species is easy to be formed, and formates can be decomposed to form CO adsorbing species, then oxidized generation CO
2, so Pt/TiO
2there is the activity of Oxidation at room temperature formaldehyde; At Rh/TiO
2on catalyst, although formate species is easy to be formed, formates is difficult to be decomposed to form CO adsorbing species, therefore Rh/TiO
2activity far below Pt/TiO
2; And for Pd/TiO
2and Au/TiO
2, two formyls are easily formed at catalyst surface, but formate species is difficult to generate, and formates can not be decomposed into CO adsorbing species, so the activity of the two is again far below Rh/TiO
2.
But room temperature catalytic oxidation technology (Pt/TiO
2catalyst) or need under illumination condition, just can have the effect that catalytic oxidation removes formaldehyde, if then do not possess catalytic oxidation ability under unglazed dark condition, the range of application of room temperature catalytic oxidation technology is limited to.And well-known " platinum " expensive, causes the cost of room temperature catalytic oxidation technology to remain high, is difficult to promote always.
Summary of the invention
The present invention removes the technology of pollutant still could must realize under illumination condition to solve current room temperature catalytic oxidation, and the problem of high cost, and the non-photocatalysis air-cleaning agent of a kind of room temperature provided and remove formaldehyde diatom ooze air purifying paint.
The non-photocatalysis air-cleaning agent of room temperature of the present invention is made up of the palladium of the tourmaline of 14 ~ 20 parts, the nano titanium oxide of 2.5 ~ 3.7 parts and 0.3 ~ 0.5 part by ratio of weight and the number of copies; Wherein tourmaline, nano titanium oxide and palladium are Powdered.
The present invention removes formaldehyde diatom ooze air purifying paint and makes primarily of pulverous tourmaline, nano titanium oxide, diatomite and palladium.
The non-photocatalysis air-cleaning agent of room temperature of the present invention is load P d/TiO
2tourmaline.Tourmaline can produce anion, micro-electric current and far infrared, Pd/TiO under the multiple excitation of tourmaline
2a kind of brand-new catalysis energy can be realized under no light condition, thus reach the target of the pollutants such as catalyze oxidation of formaldehyde.Because the use of the non-photocatalysis air-cleaning agent of room temperature of the present invention does not rely on illumination, therefore there is application prospect widely.
According to Carbon balance result, in room temperature of the present invention non-photocatalysis air-cleaning agent catalyze oxidation of formaldehyde process, only there occurs HCHO+O
2→ CO
2+ H
2the reaction of O, shows catalyst of the present invention and has splendid selective and Practical Performance.
The non-photocatalysis air-cleaning agent of room temperature of the present invention is 50000h in reactor air speed
-1, unglazed photograph, can the formaldehyde of complete catalysts oxidation 100ppm under room temperature condition, the conversion ratio of PARA FORMALDEHYDE PRILLS(91,95) is 100%.And the agent of room temperature of the present invention non-photocatalysis air-cleaning has good durability.
The present invention except in formaldehyde diatom ooze air purifying paint containing diatomite, diatomite has the structure of special porous, possesses extremely strong physisorption, can the pollutant such as formaldehyde in absorbed air, further increases load P d/TiO
2the probability that contacts with pollutants such as formaldehyde of tourmaline, accelerate the conversion rate of the pollutants such as formaldehyde.
The present invention removes formaldehyde diatom ooze air purifying paint can discharge electronegative gas ion, human body can be facilitated to synthesize and vitamin storage, be conducive to blood Oxygen deliver simultaneously, there is promotion human metabolism, improve human immunological competence, regulate the effect of human body function balance.
Detailed description of the invention
Technical solution of the present invention is not limited to following cited detailed description of the invention, also comprises any combination between each detailed description of the invention.
Detailed description of the invention one: the non-photocatalysis air-cleaning agent of present embodiment room temperature is made up of the palladium of the tourmaline of 14 ~ 20 parts, the nano titanium oxide of 2.5 ~ 3.7 parts and 0.3 ~ 0.5 part by ratio of weight and the number of copies; Wherein tourmaline, nano titanium oxide and palladium are Powdered.
Present embodiment selects Pd as the constituent of catalyst, is not only reduction of product cost; More breach conventional Ti O
2the active lower idea of load P d oxidation of formaldehyde.
The agent of present embodiment room temperature non-photocatalysis air-cleaning is prepared by the following method: take Powdered tourmaline, nano titanium oxide and palladium by ratio of weight and the number of copies, and then tourmaline, nano titanium oxide and palladium are put into powder stirrer fully stir, namely obtain the non-photocatalysis air-cleaning agent of present embodiment room temperature.
Mixing time is generally about 30 minutes.
After the non-photocatalysis air-cleaning agent before cleaning of experiment proved embodiment room temperature, quality does not change, illustrate that present embodiment cleanser is " catalyst " in the effect of catalytic oxidation pollutant, do not consume, therefore can need not upgrade or activate by Long-Time Service.
The non-photocatalysis air-cleaning agent of present embodiment room temperature all has catalytic oxidation to air pollutants such as benzene homologues, radon, ammonia and decomposes the effect removed.
Be 50000h in reactor air speed
-1, under room temperature condition the non-photocatalysis air-cleaning agent of present embodiment room temperature non-pathogenic microorganisms (Escherichia coli, staphylococcus aureus, Pseudomonas aeruginosa, the Friedlander's bacillus etc.) sterilizing rate of 30 minutes is suitable for for up to more than 99.7% to air natural bacterium and staphylococcus albus or other.(the air purification sterilization detection method that detection method adopts Guangzhou industrial microorganism inspection center to draft)
Detailed description of the invention two: the difference of present embodiment and detailed description of the invention one is: the particle diameter of tourmaline powder is 0.1 ~ 10.0 μm, the particle diameter of nano titanium oxide is 5 ~ 100nm, and the particle diameter of palladium is 0.1 ~ 10.0 μm.Other step and parameter identical with embodiment one.
By means such as BET specific surface area mensuration, X-ray diffraction (XRD), temperature programmed reduction (TPR), high-resolution transmission electron microscopies spectrum (HRTEM), a series of sign is carried out to present embodiment catalyst.
The non-photocatalysis air-cleaning agent of present embodiment room temperature (load P d/TiO is not found in XRD spectra
2tourmaline) there is the crystalline phase peak of Pd, illustrate that Pd obtains good dispersion at carrier surface.
Although can clearly tell carrier TiO in ultrahigh resolution electron micrograph
2with the lattice of tourmaline, but do not find the particulate of Pd.Because the limit of resolution of ultrahigh resolution electron microscope is 1nm, therefore infer that Pd obtains the decentralization close to 100% in the non-photocatalysis air-cleaning agent of present embodiment room temperature, the particle diameter of its particulate is less than 1nm.
Detailed description of the invention three: present embodiment is made primarily of the palladium of the tourmaline of 14 ~ 20 parts, the nano titanium oxide of 2.5 ~ 3.7 parts, the diatomite of 30 ~ 40 parts and 0.3 ~ 0.5 part by ratio of weight and the number of copies except formaldehyde diatom ooze air purifying paint.
Present embodiment is removed formaldehyde diatom ooze air purifying paint and is prepared by the following method: take Powdered tourmaline, nano titanium oxide, diatomite and palladium by ratio of weight and the number of copies, and then tourmaline, nano titanium oxide, diatomite and palladium are put into powder stirrer fully stir, namely obtain present embodiment except formaldehyde diatom ooze air purifying paint.
Mixing time is generally about 30 minutes.
Present embodiment except in formaldehyde diatom ooze air purifying paint because be added with diatomite, therefore there is excellent gas permeability, hygroscopicity.
Detailed description of the invention four: the difference of present embodiment and detailed description of the invention three is: the particle diameter of tourmaline powder is 0.1 ~ 10.0 μm, the particle diameter of nano titanium oxide is 5 ~ 100nm, and diatomaceous particle diameter is 0.1 ~ 2mm, and the particle diameter of palladium is 0.1 ~ 10.0 μm.Other step and parameter identical with embodiment three.
Detailed description of the invention five: the difference of present embodiment and detailed description of the invention three or four is: diatomite is diatomite.Other step and parameter identical with embodiment three or four.
Detailed description of the invention six: the difference of present embodiment and detailed description of the invention three, four or five is: except formaldehyde diatom ooze air purifying paint also comprises the cellulose ether of the quartz sand of 20 ~ 25 parts, the light calcium carbonate powder of 12 ~ 15 parts, the redispersible rubber powder of 3 ~ 5 parts and 4 ~ 5 parts.Other step and parameter and embodiment three, four or five identical.
What present embodiment was prepared has stronger adhesion strength and more pleasing outward appearance except formaldehyde diatom ooze air purifying paint.
Detailed description of the invention seven: present embodiment is made primarily of the palladium of the tourmaline of 15 ~ 18 parts, the nano titanium oxide of 3.0 ~ 3.5 parts, the diatomite of 32 ~ 38 parts and 0.35 ~ 0.45 part by ratio of weight and the number of copies except formaldehyde diatom ooze air purifying paint.
Detailed description of the invention eight: present embodiment is made up of the cellulose ether of the tourmaline of 16 parts, the nano titanium oxide of 3.2 parts, the diatomite of 35 parts and the palladium of 0.4 part, the quartz sand of 23 parts, the light calcium carbonate powder of 13 parts, the redispersible rubber powder of 4 parts and 4.5 parts by ratio of weight and the number of copies except formaldehyde diatom ooze air purifying paint.
Detailed description of the invention nine: present embodiment is except the using method of formaldehyde diatom ooze air purifying paint: mix except formaldehyde diatom ooze air purifying paint with the weight ratio of water by 1 ︰ 0.9, then coating, drying.
Coating thickness can regulate as required, room temperature, is 48h without drying time general under the condition of air circulation.
Embodiment 1
The non-photocatalysis air-cleaning agent of the present embodiment room temperature is made up of the palladium of the tourmaline of 16 parts, the nano titanium oxide of 3.2 parts and 0.4 part by ratio of weight and the number of copies; Wherein tourmaline, nano titanium oxide and palladium are Powdered; The particle diameter of tourmaline powder is about 2.0 μm, and the particle diameter of nano titanium oxide is about 50nm, and the particle diameter of palladium is about 3.0 μm.
To Pt/TiO
2, Pd/TiO
2with load P d/TiO
2tourmaline (the non-photocatalysis air-cleaning agent of the present embodiment room temperature) carry out that humidity is 65%, room temperature, concentration of formaldehyde be under 100ppm condition except Formaldehyde Test, Pt/TiO
2, Pd/TiO
2with load P d/TiO
2tourmaline be 1%, reaction carry out 24h.Experimental result is as shown in table 1.
Table 1
Claims (7)
1. the non-photocatalysis air-cleaning agent of room temperature, is characterized in that the non-photocatalysis air-cleaning agent of room temperature is made up of the palladium of the tourmaline of 14 ~ 20 parts, the nano titanium oxide of 2.5 ~ 3.7 parts and 0.3 ~ 0.5 part by ratio of weight and the number of copies; Wherein tourmaline, nano titanium oxide and palladium are Powdered.
2. the non-photocatalysis air-cleaning agent of room temperature according to claim 1, is characterized in that the particle diameter of tourmaline powder is 0.1 ~ 10.0 μm, and the particle diameter of nano titanium oxide is 100nm, and the particle diameter of palladium is 0.1 ~ 10.0 μm.
3., except formaldehyde diatom ooze air purifying paint, it is characterized in that making primarily of pulverous tourmaline, nano titanium oxide, diatomite and palladium except formaldehyde diatom ooze air purifying paint.
4. according to claim 3 except formaldehyde diatom ooze air purifying paint, it is characterized in that except formaldehyde diatom ooze air purifying paint is made primarily of the palladium of the tourmaline of 14 ~ 20 parts, the nano titanium oxide of 2.5 ~ 3.7 parts, the diatomite of 30 ~ 40 parts and 0.3 ~ 0.5 part by ratio of weight and the number of copies.
5. according to claim 3 or 4 except formaldehyde diatom ooze air purifying paint, it is characterized in that diatomite is diatomite.
6. according to claim 3 except formaldehyde diatom ooze air purifying paint, it is characterized in that except formaldehyde diatom ooze air purifying paint also comprises the cellulose ether of the quartz sand of 20 ~ 25 parts, the light calcium carbonate powder of 12 ~ 15 parts, the redispersible rubber powder of 3 ~ 5 parts and 4 ~ 5 parts.
7. the using method except formaldehyde diatom ooze air purifying paint according to claim 3, is characterized in that using according to the following steps: mix except formaldehyde diatom ooze air purifying paint with the weight ratio of water by 1 ︰ 0.9, then coating, drying.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410752210.6A CN104475094A (en) | 2014-12-10 | 2014-12-10 | Diatom ooze wall material applied to non-photo-catalysis purification of formaldehyde in air at room temperature |
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|---|---|---|---|
| CN201410752210.6A CN104475094A (en) | 2014-12-10 | 2014-12-10 | Diatom ooze wall material applied to non-photo-catalysis purification of formaldehyde in air at room temperature |
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Cited By (7)
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| CN104877427A (en) * | 2015-05-29 | 2015-09-02 | 桐城市慧琦工贸有限公司 | Diatom ooze coating and preparation method thereof |
| CN104877428A (en) * | 2015-05-29 | 2015-09-02 | 桐城市慧琦工贸有限公司 | Multifunctional diatom ooze coating and preparation method thereof |
| CN107930379A (en) * | 2017-10-27 | 2018-04-20 | 中嘉新材料科技（宁波）有限公司 | It is a kind of except air purification self-cleaning material of formaldehyde and preparation method thereof |
| CN108069636A (en) * | 2017-12-19 | 2018-05-25 | 上海亮龙晋保新材料科技有限公司 | A kind of non-photocatalyst-type is except formaldehyde diatom ooze and preparation method thereof |
| CN108854576A (en) * | 2018-07-31 | 2018-11-23 | 哈工大（威海）创新创业园有限责任公司 | A kind of bio-compatible perforated membrane of environmental protection and preparation method thereof |
| CN110804355A (en) * | 2019-11-26 | 2020-02-18 | 宁波康曼丝涂料有限公司 | Long-acting aldehyde-removing anti-fouling interior wall paint and preparation method thereof |
| CN114904588A (en) * | 2022-04-13 | 2022-08-16 | 浙江保护伞环保科技有限公司 | Photocatalyst air purifying agent and preparation method thereof |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104877427A (en) * | 2015-05-29 | 2015-09-02 | 桐城市慧琦工贸有限公司 | Diatom ooze coating and preparation method thereof |
| CN104877428A (en) * | 2015-05-29 | 2015-09-02 | 桐城市慧琦工贸有限公司 | Multifunctional diatom ooze coating and preparation method thereof |
| CN107930379A (en) * | 2017-10-27 | 2018-04-20 | 中嘉新材料科技（宁波）有限公司 | It is a kind of except air purification self-cleaning material of formaldehyde and preparation method thereof |
| CN108069636A (en) * | 2017-12-19 | 2018-05-25 | 上海亮龙晋保新材料科技有限公司 | A kind of non-photocatalyst-type is except formaldehyde diatom ooze and preparation method thereof |
| CN108854576A (en) * | 2018-07-31 | 2018-11-23 | 哈工大（威海）创新创业园有限责任公司 | A kind of bio-compatible perforated membrane of environmental protection and preparation method thereof |
| CN110804355A (en) * | 2019-11-26 | 2020-02-18 | 宁波康曼丝涂料有限公司 | Long-acting aldehyde-removing anti-fouling interior wall paint and preparation method thereof |
| CN114904588A (en) * | 2022-04-13 | 2022-08-16 | 浙江保护伞环保科技有限公司 | Photocatalyst air purifying agent and preparation method thereof |
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