CN103551171A - Aluminum phosphate coated photocatalytic nano titanium dioxide powder and application thereof - Google Patents

Aluminum phosphate coated photocatalytic nano titanium dioxide powder and application thereof Download PDF

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Publication number
CN103551171A
CN103551171A CN201310505012.5A CN201310505012A CN103551171A CN 103551171 A CN103551171 A CN 103551171A CN 201310505012 A CN201310505012 A CN 201310505012A CN 103551171 A CN103551171 A CN 103551171A
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aluminum phosphate
titanium dioxide
powder
phosphate
titania powder
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CN201310505012.5A
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Chinese (zh)
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洪杰
胡必忠
刘晓彬
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三棵树涂料股份有限公司
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Priority to CN201310505012.5A priority Critical patent/CN103551171A/en
Publication of CN103551171A publication Critical patent/CN103551171A/en

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Abstract

The invention relates to a preparation method and an application of aluminum phosphate/titanium dioxide composite multifunctional photocatalytic powder. The preparation method of the aluminum phosphate/titanium dioxide compound multifunctional photocatalytic powder is characterized in that a titanium dioxide is coated with aluminum phosphate, and the composite material has the photocatalytic performance of the titanium dioxide, and also remains the high temperature resisting and anti-rusting functions of an aluminum phosphate compound. The composite photocatalytic powder has a selective degradation function; for example, the powder is capable of degrading small molecular harmful matters such as formaldehyde and benzene, and has no destruction effect on large molecules such as methyl orange. Therefore, the powder can be widely applied to various organic high molecular materials, particularly in the aspects of coatings and plastics.

Description

Photocatalytic nanometer titania powder and the application thereof of aluminum phosphate parcel

Technical field

The invention belongs to paint field, relate generally to a kind of preparation method and application of aluminum phosphate/titanium dioxide composite multifunction photocatalytic powder, this powder can be used for removing foul smell, removes harmful substance or pollutant in air, particularly as benzene, and formaldehyde small-molecule substance; This powder can be applicable to fireproof paint, antirusting paint simultaneously and has on the high-molecular organic material of light catalytic purifying effect.

Background technology

Current most of finishing paint is organic coating, and organic coating is generally comprised of several or tens kinds of organic principles, and in use, organic principle volatilization or natural aging are decomposed into small organic molecule, and as benzene, formaldehyde pernicious gas, harm humans is healthy.Traditional purification method just shifts pollutant as filtered absorption, fundamentally pollution abatement.The photocatalysis technology of rising in recent years, by utilizing this clean sustainable energy of solar energy, can light degradation mineralized water and airborne various pollutant, and be subject to extensive concern.

Nano titanium oxide is a kind of good photochemical catalyst, aspect environmental catalysis, energy catalysis and health care, is all being widely used.It has the function of very strong photocatalysis Decomposition formaldehyde, benzene, toluene harmful substance and kill bacteria, there is no again toxic action, and can be to environment.Yet, in the application process of titanium dioxide optical catalyst removal pollutant, exist some problems.When titanium dioxide and organic fiber or plastics macromolecular material are mediated, because the effect of titanium dioxide optical catalyst makes fiber or plastics accelerated ageing.Therefore the preparation research of carrying out novel nano optically catalytic TiO 2 powder has certain strategic importance.

In the Chinese patent that is CN101037553A at publication number, a kind of construction technology is disclosed.It is by be first coated with one deck inorganic coating on organic coating, after being dried, is coated with optically catalytic TiO 2 coating again, thus the destruction of shielding titanium dioxide to organic coating.But the popularization of complex operation, this technique of serious restriction consuming time.CN1286649A(is for photocatalytic powder, the polymer composition that contains described powder and molded article and the production method of the depollution of environment) a kind of preparation method of photocatalytic powder of the particle that wraps up titanium dioxide proposed.In Unexamined Patent 09-276706 patent, photocatalysis ion with porous silica film coating titanium dioxide is disclosed, and by compound porous silicon dioxide film, can give and be difficult to make organic fiber or the deteriorated effect of resin, keep and light degradation property that coating photochemical catalyst is not identical simultaneously.Illustrating and build suitable novel nano optically catalytic TiO 2 powder systems, is the effective way addressing this problem.

Aluminum phosphate is a kind of broad-spectrum material, is having good application prospect aspect adhesive, molecular sieve, special cement and high-temperature oxidation resistant coating.Wherein aluminum phosphate is the coating material that high-temp antioxidizing field has potentiality.A kind of preparation method of aluminium triphosphate antirust paint is disclosed in patent CN102952421A.What wherein in patent CN1742112A, disclose a kind of phosphalugel can provide or improve that complanation, anti-soil are turbid, antibacterial properties with composition.Aluminum phosphate, polyphosphoric acid aluminium and the purposes of aluminium metaphosphate in paper coating are also disclosed in patent CN102362031A.Therefore, the invention provides a kind of efficiently, method is prepared the composite of aluminum phosphate coating titanium dioxide cheaply, this composite can either solve the destruction of titanium dioxide to high-molecular organic material, brings into play aluminum phosphate high-temperature oxidation resistant simultaneously and can be used as the function of adhesive.

Therefore in the present invention, at titanium dioxide surface, wrap up aluminum phosphate, the character and the purposes that have retained aluminum phosphate, bring into play the character of optically catalytic TiO 2 degradation of small molecular pollutant simultaneously, and do not destroyed on this basis organic matter base material, thus the service life of improving organic matter material.

Summary of the invention

One of object of the present invention is to provide a kind of photocatalytic nanometer titania powder of multi-functional aluminum phosphate parcel.Be particularly suitable for the filler in the coating, can avoid the damage of pure titinium dioxide to base material, can be by mediating, embedding or mix various physical means and be admixed in organic fiber, plastics or coating.When this powder is for coating, both can remove harmful substance or pollutant, especially benzene in air, formaldehyde small-molecule substance, also can, due to metallic substrate surface, have antirust function simultaneously.

Two of object of the present invention is to provide a kind of preparation method of photocatalytic nanometer titania powder of the aluminum phosphate parcel that is applied to the depollution of environment.

Three of object of the present invention is to provide a kind of organic composite of photocatalytic nanometer titania powder of the aluminum phosphate parcel that is wherein mixed with this depollution of environment.

Four of object of the present invention is to provide a kind of polymer molded article making from the organic-polymer composition of this depollution of environment, and for the preparation of the method for this polymer molded article.

Compare with existing compound titanic oxide material, the characteristic part of aluminum phosphate/composite titania material of the present invention is:

Give full play to the photocatalysis of titanium dioxide and the high-temperature oxidation of aluminum phosphate and rustless property, also shielded titanium dioxide to macromolecule organic material destruction simultaneously.

For realizing above various objects, discovery after having carried out in depth research, utilize anion surfactant to disperse photocatalysis titanium dioxide nano particle, by regulatable mode, in the method for titanium dioxide surface deposition phosphoric acid aluminium lamination pore-creating, can obtain durability strengthens, selective clear and definite microporous aluminophosphates shell, and this shell can selectively pass through little molecule pernicious gas material, make the photo-catalysis function of nano titanium oxide not weakened.When by this particle with physical method load or be combined in organic polymer medium or coating system, the durability of organic media is obviously improved, based on these, we have completed the present invention.

The preparation method of aluminum phosphate parcel titanium dioxide of the present invention, comprises following steps:

1) adopt nano titanium oxide to mix mutually with pH cushioning liquid, after add anion surfactant, concussion dispersion.Adding of anion surfactant is in order to strengthen the adhesive effect of titanium dioxide and integument, and improves the monodispersity of titanium dioxide.

2) aluminum salt solution is joined in above-mentioned suspension, be uniformly dispersed, allow containing the uniform ion absorption of aluminium or be distributed in titanium dioxide surface.

3) charging rate with 5~15mL/min is added drop-wise to a certain amount of phosphate solution in above mixture, makes aluminum phosphate particle precipitated crystal on suspended particulate, forms integument;

4) regulate pH value to reach at 4.0~7.0 o'clock and stop dripping, at room temperature continue reaction 0.5h~2h, still aging 24h, by sediment filtration, washing, in the baking oven of 60~100 ℃, dry 10~12h, obtains composite precursor;

5) by composite precursor under certain atmosphere, carry out roasting 1~5h at 300~1200 ℃, obtain aluminum phosphate parcel titanium dioxide core/shell composite granule.

For light-catalysed nano titanium dioxide crystal form, may be wherein anatase titanium dioxide, may be rutile-type, or mix crystal formation.Wherein mix crystal formation and can form p-n junction, effect is best.

For the average grain diameter of light-catalysed nano titanium oxide, preferably within the scope of 0.020~0.3 μ m, if being less than 0.020 μ m, the average grain diameter diameter of nano titanium oxide is unfavorable for disperseing and follow-up parcel, and inapplicable in production practices; And if the average grain diameter diameter of nano titanium oxide is less than 0.3 μ m, more preferably average primary particle diameter is in the scope of 0.005~0.05 μ m.

Production method for light-catalysed nano titanium oxide of the present invention is not particularly limited, vapor phase method, liquid phase method all can, but the titanium dioxide of a kind of high degree of dispersion of AEROSIL200 explained hereafter is good method, wherein by certain dispersion means, can use scanning electron microscopic observation to its coherent condition.

Containing in the suspension of titanium dioxide, adding anion surfactant, the effect of anion surfactant is to control interfacial phenomenon.Surfactant dissolves ionization in the aqueous solution, thereby is conducive to the dispersion of titanium dioxide because electric charge repels each other, and finally can remove by the method for roasting.

The object lesson of anion surfactant has various carboxylates, as fatty acid sodium soap, and oleic acid potash soap; Various sulfonate, as neopelex, alpha-olefin sodium sulfonate, Negel, alpha-sulfo monocarboxylate, aliphatic acid sulfoalkyl ester, succinate sodium sulfonate, alkyl glycerylether sodium sulfonate; Various phosphate ester salts, as the phosphate mono-ester/diester sodium salt of calgon, AEO and aPESmono phosphoric acid ester, dibasic acid esters sylvite; Various sulfate, as lauryl sodium sulfate, higher alcohol sulfate.These anion surfactants can be used separately, or are used in combination.

Step 2) in, alternative aluminium salt has aluminum nitrate, aluminium chloride, aluminum sulfate, aluminium hydroxide, the thin aluminium stone of plan.In step 3), alternative phosphate has dibastic sodium phosphate, sodium dihydrogen phosphate, ammonium hydrogen phosphate, calgon, potassium pyrophosphate, potassium polyphosphate, orthophosphoric acid.

The atmosphere of step 5) can be oxygen or air atmosphere.By the residual organic matters such as anion surfactant oxidation Decomposition under hot conditions, remove like this.

The sintering temperature of step 5) is 200~700 ℃, and the retention time is 1~5h.Because aluminium triphosphate (AlH 2p 3o 102H 2o) in the time of 100-150 ℃, can discharge the crystallization water, but in temperature-fall period, run into steam and can regain the crystallization water.When surpassing 450 ℃, can produce intramolecular dehydration and generate β type three aluminium metaphosphates, further intensification can lose a part phosphorus pentoxide, generates the high resistant to elevated temperatures aluminum orthophoshpate of stability.

The titanium dioxide of the aluminum phosphate parcel finally obtaining there is unbodied aluminum phosphate hole layer, this coating can cover titanium dioxide surface particle uniformly, plays the feature of protection high-molecular organic material, the destruction of shielding titanium dioxide to it.

Weight based on titanium dioxide is calculated, and the amount of the aluminum phosphate of deposition of titanium oxide is preferably 1~70%.If the very few effectively cladding titanium dioxide of the amount of porous calcium phosphate aluminium, does not have the effect of protection organic polymer and pigment.Otherwise the amount of porous calcium phosphate aluminium is too large, make coated hole too little or sealing, light-catalysed activity does not reach requirement.

Finally complete after the controlled aluminum phosphate parcel titanium dioxide in aperture, obtain having the white light catalytic powder of porous.This powder can be used for removing foul smell, removes harmful substance or pollutant in air, particularly as benzene, and formaldehyde small-molecule substance; This powder is applied to draining or purification of water quality simultaneously, removes the harmful substance in water, kill harmful bacterium.

Especially when passing through various physical means (as kneading, embedding, simply mixing), this powder is admixed to organic polymer medium as in fiber or plastics, adopt fluorescent lamp, incandescent lamp, uviol lamp, mercury lamp, xenon lamp, Halogen lamp LED, sunshine to irradiate continuously or fast, can remove airborne various harmful substance as foul smell hydrogen sulfide, nitrogen oxide or benzene, and organic fiber or plastic products itself can not decompose.

This photocatalytic powder can join with the form of color stuffing or catalyst in coating for internal and external wall formula, by formula, adjusts development of new multifunctional photocatalysis coating, has the effect that ultraviolet is self-cleaning, remove airborne various pernicious gas materials.

The photocatalytic powder of the depollution of environment of the present invention is also applicable to polymer molded article, as organic fiber, shaping plastic goods or the coating that organic polymer formed.All organic polymers are had no particular limits, and can be the various polyolefin of mentioning as its concrete example, as polyethylene and polypropylene, polystyrene, and polyvinyl chloride, poly-1,2-dichloroethene; Polyamide, as nylon; Various polyalkamers, as PEO; Various polyalcohols, as polyvinyl alcohol; Various polyesters, as organic siliconresin, poly terephthalic acid diethylester, phenolic resins, vinyl acetal resin, poly-acetic acid esters, ABS resin; Epoxy resin, styrene-acrylic resin, ethane-acetic acid ethyenyl ester resin, polyurethanes, Merlon, urea resin, fluororesin, cellulose and various cellulose derivative, chitin, lignin, starch.Generally speaking, in the production process of polymer molded article, pass through various physical means (as kneading, embedding, simple mixed compaction), this photocatalytic powder is admixed to organic polymer medium as in fiber or plastics, total weight based on polymeric compositions, the concentration of photocatalytic powder in polymer is generally 0.1~70%, is preferably 0.5~50%.

The specific embodiment

At each following working example, will the preparation of composite of the present invention be described and in the application aspect photocatalysis.In example, composite, to micromolecular degradation, is usingd liquid formaldehyde as degradation model; To slightly macromolecular degradation, take methyl orange solution as degradation model.

Embodiment 1: by the titanium dioxide (P25 of 10.0g, adopt the titanium dioxide of a kind of high degree of dispersion of AEROSIL200 explained hereafter, the about 21nm of particle diameter) pour in 100mL water, and add 0.02g polyvinylpyrrolidone (PVP, China's traditional Chinese medicines), and fully concussion disperses.Nitric hydrate aluminium 19.0g is joined in above-mentioned scattered suspension.Ammonium dihydrogen phosphate (ADP) 9.4g is dissolved in 100mL distilled water, under the state stirring, with the speed of 15mL/min, dropwise adds in said mixture, aluminium triphosphate is deposited at titanium dioxide surface equably.At room temperature continue reaction 0.5h, still aging 24h, filters sediment, wash, and in the baking oven of 60 ℃, dry 12h, obtains composite precursor.Composite precursor, under air atmosphere, is carried out to roasting 1h at 1200 ℃, obtain aluminum orthophoshpate parcel titanium dioxide core/shell composite granule.

Light degradation formalin test: first, to the formalin that adds the 10mg/L of 500mL in reactor, then add 1.0g synthesis of nano titanium dioxide composite photocatalyst, magnetic agitation makes it to suspend.Lucifuge stirs 30min, makes formalin on the surface of catalyst, reach absorption/desorption balance, pipettes 10mL solution in centrifuge tube.Then open cooling water, and open uviol lamp and carry out light-catalyzed reaction 25min, every 5min, pipette 10mL reactant liquor, after centrifugation, get supernatant and carry out visible spectrophotometry analysis.According to measurement result, judge whether its PARA FORMALDEHYDE PRILLS(91,95) has degradation effect and degradation rate.Discovery is in 2h, and the degradation rate of formaldehyde is 100%.

Destruction about this photocatalytic powder to macromolecule organic material base material, tests in the following manner.Mode one: adopt forcing press compacting to obtain containing the bar of 30% photocatalytic powder this photocatalytic powder of 300g and polyethylene terephthalate resin, used the ultra violet lamp of λ <246nm, resin can flavescence, aging.Mode two: this photocatalytic powder of 50g is mixed mutually with water-soluble alcohol urea formaldehyde solution (DOW Chemical production), make the coating system of the photocatalytic powder that contains 30%, masking, dry, adopt the ultra violet lamp of λ <246nm, resin can variable color, aging.

Embodiment 2: the titanium dioxide of 40.0g (P25, the about 100nm of particle diameter) is poured in 150mL water, and added 8.0g neopelex (Chinese traditional Chinese medicines), and fully concussion disperses.Aluminum sulfate 2.8g is joined in above-mentioned scattered suspension.Sodium phosphate 2.7g is dissolved in 50mL distilled water, under the state stirring, with the speed of 10mL/min, dropwise adds in said mixture, aluminum phosphate is deposited at titanium dioxide surface equably.At room temperature continue reaction 1h, still aging 24h, filters sediment, wash, and in the baking oven of 80 ℃, dry 18h, obtains composite precursor.Composite precursor, under air atmosphere, is carried out to roasting 2h at 900 ℃, obtain aluminum orthophoshpate parcel titanium dioxide core/shell composite granule.

The test of the light degradation formalin of the photocatalytic powder of gained is identical with example 1.Result of the test show this powder can be in 2h degradable formaldehyde.

Photocatalytic powder is tested as follows the possibility of macromolecule organic material wood destruction: with plastic components is poly-, ABS resin is mixed and extruded mutually, obtain containing the bar of 30% photocatalytic powder, used ultra violet lamp, resin one day can variable color, aging.Be used in coating system epoxy resin solution (the Dow Chemical Company's production), make the coating system of the photocatalytic powder that contains 30%, adopt the ultra violet lamp of λ <246nm, resin can variable color through one day, aging.

Embodiment 3: the titanium dioxide of 20.0g (University of Fuzhou provides, the about 300nm of particle diameter) is poured in 100mL water, and added 0.4g lauryl sodium sulfate (Chinese traditional Chinese medicines), and fully concussion disperses.Aluminium chloride hexahydrate 7.9g is joined in above-mentioned scattered suspension.Potassium polyphosphate 4.2g is dissolved in 100mL distilled water, under the state stirring, with the speed of 10mL/min, dropwise adds in said mixture, aluminum phosphate is deposited at titanium dioxide surface equably.At room temperature continue reaction 2h, still aging 24h, filters sediment, wash, and in the baking oven of 100 ℃, dry 11h, obtains composite precursor.Composite precursor, under air atmosphere, is carried out to roasting 5h at 500 ℃, obtain aluminum orthophoshpate parcel titanium dioxide core/shell composite granule.

The photocatalytic powder of gained is for degradation of formaldehyde or methyl orange, and measurement result shows that synthetic photocatalytic powder can degradable formaldehyde to 2h, and methyl orange is not had to degradation.

Mix and extrude mutually with plastic components polycarbonate resin, obtain containing the bar of 30% photocatalytic powder, used the ultra violet lamp of λ <246nm, variable color in resin one day, aging.In coating system, select in pure acrylic latex (BASF AG's production), make the coating system of the photocatalytic powder that contains 30%, adopt the ultra violet lamp of λ <246nm, resin can variable color, aging.

Embodiment 4: by the titanium dioxide (P25 of 20.0g, adopt the titanium dioxide of a kind of high degree of dispersion of AEROSIL200 explained hereafter, the about 21nm of particle diameter) pour in 150mL hot water, and add 0.4g dioctyl sodium sulfosuccinate (Aladdin reagent), and fully concussion disperses.Aluminium hydroxide 7.9g is joined in above-mentioned approximately 85 ℃ of scattered suspensions.85% orthophosphoric acid 6.5mL is dissolved in 50mL distilled water, under the state stirring, with the speed of 10mL/min, dropwise adds in said mixture, aluminum phosphate is deposited at titanium dioxide surface equably.At 85 ℃, continue reaction 2h, still aging 24h, filters sediment, wash, and in the baking oven of 100 ℃, dry 20h, obtains composite precursor.Composite precursor, under air atmosphere, is carried out to roasting 5h at 300 ℃, obtain aluminium triphosphate parcel titanium dioxide core/shell composite granule.

The photocatalytic powder of gained is for degradation of formaldehyde or methyl orange, and measurement result shows that synthetic photocatalytic powder can degradable formaldehyde to 2h, and methyl orange is not had to degradation.

Mix and extrude mutually with plastic components polyethylene, obtain containing the bar of 30% photocatalytic powder, used the ultra violet lamp of λ <246nm, variable color in resin one day, aging.In coating, select in benzene emulsion (the Dow Chemical Company's production), make the coating system of the photocatalytic powder that contains 30%, adopt the ultra violet lamp of λ <246nm, resin can variable color, aging.

Comparative example 1: adopt photocatalysis P25 to be directly used in degradation of formaldehyde or methyl orange, measurement result titanium oxide P25 powder 2h can 100% degradation of formaldehyde, simultaneously also can methyl orange solution is degradable.

P25 mixes and extrudes mutually with plastic components polyethylene terephthalate resin, obtains containing the bar of 30% photocatalytic powder, is used the ultra violet lamp of λ <246nm, and resin can variable color, aging.Be used in coating system water-soluble alcohol urea formaldehyde solution (the Dow Chemical Company's production), make the coating system of the photocatalytic powder that contains 30%, adopt the ultra violet lamp of λ <246nm, resin solution quick color-changing is aging.

Comparative example 2: by implementing program same as Example 1, difference is not adopt anion surfactant dispersed titanium dioxide nano particle, and it is identical that other all conditions all keeps, and obtains composite photocatalyst powder.The photocatalytic powder of gained is for degradation of formaldehyde, measurement result show can 2h in degradable formaldehyde, methyl orange solution is also had to degradation, but not degradable in 2h, in 10h, degraded completely.

Photocatalytic powder is mixed and is extruded mutually with plastic components polyethylene terephthalate resin, obtains containing the bar of 30% photocatalytic powder, is used the ultra violet lamp of λ <246nm, and resin can flavescence, aging.Be used in coating system water-soluble alcohol urea formaldehyde solution (the Dow Chemical Company's production), make the coating system of the photocatalytic powder that contains 30%, adopt the ultra violet lamp of λ <246nm, resin quick color-changing is aging.

Comparative example 3: by implementing program same as Example 1, difference is that the pH value of the hierarchy of control is in 3.5, and it is identical that other all conditions all keeps, and obtains for photocatalytic powder.Now the sedimentation effect of aluminum phosphate is poor.The photocatalytic powder of gained is for degradation of formaldehyde or methyl orange, and measurement result shows can degradable formaldehyde.

Photocatalytic powder is mixed and is extruded mutually with plastic components polyethylene terephthalate resin, obtains containing the bar of 30% photocatalytic powder, is used the ultra violet lamp of λ <246nm, and resin can variable color, aging.Be used in coating system water-soluble alcohol urea formaldehyde solution (the Dow Chemical Company's production), make the coating system of the photocatalytic powder that contains 30%, adopt the ultra violet lamp of wavelength X <246nm, resin quick color-changing is aging.

Claims (10)

1. a photocatalytic nanometer titania powder for aluminum phosphate parcel, is characterized in that: it comprises titania nanoparticles, at least coated one deck aluminum phosphate in the titanium dioxide granule surface disperseing separately at each.
2. the photocatalytic nanometer titania powder that aluminum phosphate according to claim 1 wraps up, it is characterized in that: the average grain diameter of titanium dioxide is 0.020~0.3 μ m, described titanium dioxide crystal form can be anatase titanium dioxide, can be also rutile-type, or any mixing of two types.
3. the photocatalytic nanometer titania powder of aluminum phosphate parcel according to claim 1, is characterized in that: aluminum phosphate can be aluminum phosphate or polyphosphoric acids aluminium.
4. the photocatalytic nanometer titania powder of aluminum phosphate parcel according to claim 1, is characterized in that: described aluminum phosphate and titanium dioxide mass ratio are 0.05~1:1.
5. a preparation method for the photocatalytic nanometer titania powder that aluminum phosphate as claimed in claim 1 wraps up, is characterized in that comprising the following steps:
(1) titanium dioxide powder is added in the aqueous solution containing anion surfactant, through stirring, ultrasonic, obtain uniform mixture; In described homogeneous mixture, the content of titanium dioxide is 50~200g/L, and the mass ratio of anion surfactant and titanium dioxide is 1:500~1:5;
(2) aluminum salt solution is joined in above-mentioned suspension, be uniformly dispersed; In described homogeneous mixture, aluminium salt is 30~600g/L at the concentration content of total solution;
(3) charging rate with 5~15mL/min is added drop-wise to phosphate cpd solution in above mixture, makes aluminum phosphate particle precipitated crystal on suspended particulate, forms integument; Wherein to account for the ratio of mixed solution be 10% – 50% to aluminum phosphate;
(4) regulate pH value to reach 3.6~7.0, at room temperature continue to react half an hour, sediment is filtered, washed, in air, in 60~80 ℃ of dry 10~24h, obtain composite precursor;
(5) by composite precursor under certain atmosphere protection, carry out the roasting 1~3h of uniform temperature, pulverize, grind, obtain the photocatalytic nanometer titania powder of aluminum phosphate parcel.
6. the preparation method of the photocatalytic nanometer titania powder that aluminum phosphate according to claim 4 wraps up, it is characterized in that: step 2) in aluminium salt be preferably aluminum nitrate, aluminum sulfate, sodium metaaluminate, potassium metaaluminate, lithium metaaluminate, thin aluminium stone, aluminum ions concentration is 0.1~50mM.
7. the preparation method of the photocatalytic nanometer titania powder of aluminum phosphate parcel according to claim 4, is characterized in that: the concentration that the phosphate cpd of step 3) is preferably orthophosphoric acid, ammonium di-hydrogen phosphate, sodium phosphate is 0.1~150mM.
8. the preparation method of the photocatalytic nanometer titania powder of aluminum phosphate parcel according to claim 4, is characterized in that: the sintering temperature of step 5) is preferably 200~700 ℃.
9. a coating with the photocatalytic nanometer titania powder of the parcel of the aluminum phosphate described in any one in claim 1-4.
10. an organic polymer medium with the photocatalytic nanometer titania powder of the parcel of the aluminum phosphate described in any one in claim 1-4, total weight based on polymeric compositions, the concentration of the photocatalytic nanometer titania powder of described ferric phosphate parcel in polymer is generally 0.1~70%, is preferably 0.5~50%.
CN201310505012.5A 2013-10-23 2013-10-23 Aluminum phosphate coated photocatalytic nano titanium dioxide powder and application thereof CN103551171A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160319420A1 (en) * 2013-11-27 2016-11-03 Nitto Denko Corporation Metal oxide-polymer laminate and production method thereof
CN107109081A (en) * 2014-11-04 2017-08-29 金永 One-component optical catalyst coatings constituent and its manufacture method
CN107903535A (en) * 2017-12-08 2018-04-13 广东技塑新材料股份有限公司 Low smell has the PVC automotive interior materials and preparation method of sterilizing function

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6248775A (en) * 1985-08-26 1987-03-03 Ishihara Sangyo Kaisha Ltd Gravure ink composition
CN1286649A (en) * 1997-12-25 2001-03-07 工业技术院 Photocatalyst powder for environmental purification, polymer composition contg. said powder and molded article thereof, and processes for producing these
CN1742112A (en) * 2002-12-23 2006-03-01 应用薄膜公司 Aluminum phosphate coatings

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6248775A (en) * 1985-08-26 1987-03-03 Ishihara Sangyo Kaisha Ltd Gravure ink composition
CN1286649A (en) * 1997-12-25 2001-03-07 工业技术院 Photocatalyst powder for environmental purification, polymer composition contg. said powder and molded article thereof, and processes for producing these
CN1742112A (en) * 2002-12-23 2006-03-01 应用薄膜公司 Aluminum phosphate coatings

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160319420A1 (en) * 2013-11-27 2016-11-03 Nitto Denko Corporation Metal oxide-polymer laminate and production method thereof
US10415132B2 (en) * 2013-11-27 2019-09-17 Nitto Denko Corporation Metal oxide-polymer laminate and production method thereof
CN107109081A (en) * 2014-11-04 2017-08-29 金永 One-component optical catalyst coatings constituent and its manufacture method
CN107903535A (en) * 2017-12-08 2018-04-13 广东技塑新材料股份有限公司 Low smell has the PVC automotive interior materials and preparation method of sterilizing function

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