CN1736586A - Inorganic clay compound material, its preparation and use - Google Patents
Inorganic clay compound material, its preparation and use Download PDFInfo
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- CN1736586A CN1736586A CN 200510014388 CN200510014388A CN1736586A CN 1736586 A CN1736586 A CN 1736586A CN 200510014388 CN200510014388 CN 200510014388 CN 200510014388 A CN200510014388 A CN 200510014388A CN 1736586 A CN1736586 A CN 1736586A
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Abstract
The invention relates to inorganic clay composite and the method for preparation and the utility, belonging to the catalyst art. The material comprises rare-earth element, titanium oxide and clay, the rare-earth element being one or two from Ce, La, Nd, Pr, Yt, Eu and Er, the clay being montmorillonite, the mass ratio of every component being: montmorillonite 54- 90%, titanium oxide 8- 45%, and rare-earth oxide 0.1- 4.0%; and the technique contains the following steps: the mass ratio of material being: titanate 0.6- 1.8%, absolute ethyl alcohol 45- 90%, rare-earth salt 0.013- 0.08% clay 0.8- 1.8%, deionized water 3- 30% and glycerin 4- 35%, using titanate, absolute ethyl alcohol and glycerin solution to prepare titanium oxide sol, using rare-earth salt and absolute ethyl alcohol to prepare rare-earth solution, adding said sol and solution separately into the suspension of clay- absolute alcohol, mixing, aging, filter-pressing, drying in 60- 80Deg. C, and at last roasting 4- 10 hours to prepare the product. The material is added into coating as an additive. And the material has a high catalysis property and a short preparation process.
Description
Technical field
Technical scheme of the present invention relates to catalyst field, specifically a kind of inorganic clay compound material that catalytic activity is arranged and its production and use.
Background technology
For the exploitation and the application of clay composite material, the comparison of foreign study early.Wherein particularly aspect the research of bentonite composite material, a large amount of research work have been carried out.The bentonite that is used for the environmental protection field mainly contains two kinds of forms, and a kind of is original soil is made sodium bentonite by sodium modification or original soil to be carried out acidifying make atlapulgite; Another kind of form be with bentonitic interlayer introduce that some are inorganic, organic ion or molecule, make composite between montmorillonite layer through further interlayer reaction.People are that matrix has been synthesized various inorganic, organobentonite composites with the bentonite, wherein the metal ion that relates to of bentonite inorganic polymer composite material has Al, Ti, Zr, Cr, Fe, Si, Ni, La etc. more, and studying more is four kinds of Al, Ti, Zr, Si.CN 1434744 discloses a kind of aluminum oxide/swellable clay composites and preparation and using method, and the catalytic activity of aluminium oxide is unsatisfactory.Report titanium dioxide (TiO such as Fujishima from Japan in 1972
2) since the electrode glazing brine electrolysis phenomenon, both at home and abroad to Nano semiconductor TiO
2Deep research has been carried out in aspects such as the preparation of material, structure, performance and photocatalysis theory, finds TiO
2And composite has very wide application prospect in the environmental protection field.For titanium dioxide/clay composite material, the preparation of pillaring solution is a committed step in its preparation process, the preparation method who adopts mainly contains following two kinds both at home and abroad: a kind of is Hydrolyze method, with titanyl sulfate, titanium tetrachloride, titanium sulfate is the titanium source, the method has advantages such as cost is low, discarded object is few, control system is simple, but has the long shortcoming of operation; Another kind is a sol-gel process, is the titanium source with titanium alkoxide such as butyl titanate, isopropyl titanates usually, the method have technology fairly perfect, easily form advantage such as macroporous structure, but have that cost is higher, the process control shortcoming of difficulty comparatively.What CN1212716 and CN1461328 disclosed all is organoclay composite compositions, and its function does not lie in catalytic activity.
Summary of the invention
Technical problem to be solved by this invention is: a kind of inorganic clay compound material and its production and use is provided, this material not only has photocatalysis performance more efficiently, has overcome the shortcoming that preparation section is long and cost is higher, process control is comparatively difficult simultaneously.
The present invention solves this technical problem the technical scheme that is adopted: inorganic clay compound material of the present invention is made up of rare earth element, titanium dioxide and clay, wherein, rare earth element is meant the combination of a kind of or any two kinds of rare earth elements in cerium, lanthanum, neodymium, praseodymium, yttrium, europium, the erbium, clay is meant imvite, and the quality percentage composition of its each component is as follows: imvite 54～90%, titanium dioxide 8～45%, rare earth oxide 0.1～4.0%.
The preparation method of inorganic clay compound material of the present invention is: raw material and the mass percent that feeds intake are: titanium salt 0.6～1.8%, absolute ethyl alcohol 45～90%, rare-earth salts 0.013～0.08%, clay 0.8～1.8%, deionized water 3～30%, glycerine 4～35%, each amounts of components summation is 100%, wherein said clay is meant sodium-based montmorillonite, titanium salt is meant butyl titanate, isopropyl titanate, the metatitanic acid methyl esters, tetraethyl titanate, in the titanium tetrachloride any one, rare earth are meant cerium (Ce), lanthanum (La), neodymium (Nd), praseodymium (Pr), yttrium (Y), europium (Eu), water-soluble or the pure dissolubility salt of the combination of a kind of or any two kinds of rare earth elements in the erbium (Er); Operating procedure is: be made into TiO 2 sol with titanium salt, absolute ethyl alcohol, glycerine solution, be made into earth solution with rare-earth salts and absolute ethyl alcohol, it is in the slurry of medium that above-mentioned colloidal sol and solution are added to successively with the absolute ethyl alcohol, at room temperature stir and leave standstill aging 12 hours after 3 hours, carry out drying down in 60 ℃～80 ℃ after liquid is removed in press filtration, 400 ℃～600 ℃ high-temperature roastings promptly obtained described composite in 4～10 hours.
In the preparation method of the clay composite material of the invention described above, use titanium salt, the operating procedure that absolute ethyl alcohol and glycerine solution are made into TiO 2 sol is, be dissolved in the absolute ethyl alcohol that satisfies above-mentioned raw materials and feed intake mass percent satisfying the liquid titanium salt of above-mentioned raw materials with the mass percent that feeds intake, the volume ratio of liquid titanium salt and absolute ethyl alcohol is 4～12.5: 10～30, through stirring, it is joined in the glycerin solution of the weight that satisfies above-mentioned raw materials and feed intake mass percent, the glycerine in this glycerin solution and the volume ratio of water are 1～2: 1～2.5, make TiO 2 sol.
In the preparation method of the clay composite material of the invention described above, be in the slurry of medium with the absolute ethyl alcohol, the content of clay is 1.5%～3.2%.
In the preparation method of the clay composite material of the invention described above, the first-selected titanium tetrachloride of its used titanium salt; The first-selected cerous nitrate of rare-earth salts.
The purposes of inorganic clay compound material of the present invention is: be added in the coating as additive, prepare have defencive function or/and decoration functions or/and regulate the function of use of building or/and the coating of environment purification function; When being used to purify the air of a room, remove airborne pernicious gas formaldehyde, toluene or/and dimethylbenzene.
When inorganic clay compound material of the present invention was added in the coating as additive, the mass percent of its addition in prepared coating was 2%～3%.
The invention has the beneficial effects as follows:
(1) inorganic clay compound material of the present invention has photocatalysis performance more efficiently
TiO
2And composite has very wide application prospect in the environmental protection field, will become 21 century to utilize a new technology revolution of solar energy purification environment.Yet semiconductor TiO
2Energy gap Eg=3.2eV only can absorb the ultraviolet part of sunshine medium wavelength less than 387.5nm, and light induced electron and hole-recombination rate are higher, causes solar energy utilization rate and quantum efficiency low, influences its practical application.One of effective way that addresses the above problem is, at TiO
2Rare earth or transition metals such as middle doped Ce, Pr, Fe, Eu so that increase new surface energy level in being with, enlarge the wavelength response range of light-catalyzed reaction, realize visible light photocatalysis.Rare earth element all is typical active metal.The valence orbit that rare earth ion relates to is many, and valence electron can transition between the f track, also can transition between f and d track, thus cause absorption to the light of various wavelength.One of rare earth element application in new and high technology is exactly as catalyst, and the inventor has illustrated rare earth in more detail and promoted optically catalytic TiO 2 reagentia mechanism in documents such as " silicate journal " 2001,29 (5).
Bentonite (bentonite) has the title of " omnipotent raw material ", be a kind of be the clay mineral of main component with montmorillonite (montmorillonite).Montmorillonite belongs to and contains watery aluminosilicate mineral, belongs to 2: 1 type net rack shaped structures, promptly by two-layer silicon-oxy tetrahedron [SiO
4] therebetween layer of aluminum oxygen octahedra [AlO
6] two-dimensional layered structure that forms.Because it has special construction, therefore have a lot of premium properties, as: dilatancy, adsorptivity, cation exchange, suspension, dispersiveness, caking property, thixotropy, stability or the like.The interlamination region of clay mineral is a good chemical reaction place, and it has characteristics such as interlayer exchange, interlayer absorption, interlayer catalysis, interlayer polymerization, interlayer be pillared." pillared " is the technology that can improve layer structure material layer spacing, stability, specific area and surface acidity, catalytic performance etc. that has grown up since the seventies, is a kind of special activation method.
The present invention organically combines rare earth, titanium dioxide, clay three, utilizes rare earth element to have special 4f electronic structure, can produce the characteristic of multiple energy level, in compound system with TiO
2Form rare earth oxide-TiO
2Structure, wherein CeO particularly
2-TiO
2Structure is equivalent at TiO
2The new energy level of central insertion is widened TiO
2Light-catalyzed reaction light wave response range improves solar energy utilization rate and photocatalysis efficiency; With CeO
2-TiO
2Be example, under natural light irradiation, the cerium ion of tetravalence attitude is easy to catch the cerium ion that light induced electron generates three valence states, play the effect of light induced electron trapping agent, after electronics is caught by cerium ion, be difficult to the hole compound again, thereby effectively promoted separating of light induced electron and hole, improved TiO
2Photocatalytic activity, the result makes inorganic clay compound material of the present invention have photocatalysis performance more efficiently.
(2) preparation method of inorganic clay compound material of the present invention has overcome the shortcoming that preparation section is long and cost is higher, process control is comparatively difficult.
Inorganic clay compound material preparation technology of the present invention is simple, preparation condition is easily realized, raw materials usedly be resource than the mineral products of horn of plenty, easily realize industrialization in China.The present invention in force, the first-selected titanium tetrachloride of titanium salt, the first-selected cerous nitrate of rare-earth salts, described clay is sodium-based montmorillonite (sodium bentonite).This is because titanium tetrachloride is cheap than Organic Ingredients; So elemental cerium reserves maximum in China's rare earth resources is the easiest the obtaining of rare earth cerium; Sodium-based montmorillonite (sodium bentonite) expansion multiple is good than the imvite of other genotype, and its purity is high more, its various performances are good more, mainly utilize cation exchange, dilatancy, suspension, thixotropy of clay etc. among the present invention, because imvite has fabulous above-mentioned four kinds of character, so be easy to rare earth, the titanium dioxide plasma enters its interlayer, formation rare earth, titanium dioxide are inlayed composite construction wherein, and China's imvite aboundresources, its cheap market price, so sodium-based montmorillonite becomes the first-selection that the present invention uses raw material.
(3) purposes of inorganic clay compound material of the present invention has broad prospects
The high efficiency photocatalysis performance that has in view of nano titanium oxide, we can prepare the coating with air purification function, dope layer, clay layer that sunshine sees through the titanium dioxide surface coating shine the titanium dioxide nanoparticle surface, excite to produce light induced electron and hole.The coating wide range, comprise traditional paint and various be the solvent based coating of raw material production and with synthetic resin based on the modern coating of water paint.Need to use materials such as solvent, plasticizer, additive in the coating material production process, wherein a lot of materials are organic solvent, as: benzene, methyl alcohol etc., the part organic component that the hole can directly be contained coating decomposes, generate carbon dioxide, cause the weather resisteant of coating to reduce, influence the practical effect of coating.Above problem at occurring in the nano titanium oxide practical application the invention provides the method that a kind of preparation has the air-cleaning function inorganic clay compound material, and is applied to research and develop modern architecture coating.The present invention utilizes character such as cation exchange that clay itself has, dilatancy, suspension, thixotropy that titanium dioxide and rare earth element are incorporated into its interlayer, can realize the immobilized of titanium dioxide and rare earth element two species on the one hand; On the other hand titanium dioxide, rare earth element are hidden in the interlamination region of clay; form the clay protective layer; titanium dioxide, rare earth element can not directly be contacted with coating; to prevent that organic principle is decomposed in the coating; improve the ability of weather conditions long terms such as coating opposing daylight, wind and rain, fever and chills, thereby solve the weather resisteant problem of coating.Therefore, inorganic clay compound material of the present invention is the very wide material of a kind of application prospect.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is the XRD figure of former imvite.
Fig. 2 is the XRD figure of cerium, titanium dioxide and the clay composite material of the embodiment of the invention 1 preparation.
Fig. 3 is the XRD figure of cerium, titanium dioxide and the clay composite material of the embodiment of the invention 2 preparations.
Fig. 4 is the XRD figure of cerium, titanium dioxide and the clay composite material of the embodiment of the invention 3 preparations.
Fig. 5 is the XRD figure of cerium, titanium dioxide and the clay composite material of the embodiment of the invention 4 preparations.
Fig. 6 is the XRD figure of cerium, titanium dioxide and the clay composite material of the embodiment of the invention 5 preparations.
Fig. 7 is the XRD figure of cerium, titanium dioxide and the clay composite material of the embodiment of the invention 6 preparations.
The specific embodiment
Fig. 1 shows that the present invention prepares 6 hours X-ray diffraction analysis picture of 500 ℃ of roastings of the used imvite of inorganic clay compound material, and first diffraction maximum place among the figure is imvite d001 crystal face.
Fig. 2 shows the X-ray diffraction analysis picture of cerium, titanium dioxide and the clay composite material of the embodiment of the invention 1 preparation, and first diffraction maximum place among the figure is imvite d001 crystal face.
Fig. 3 shows the X-ray diffraction analysis picture of cerium, titanium dioxide and the clay composite material of the embodiment of the invention 2 preparations, and first diffraction maximum place among the figure is imvite d001 crystal face.
Fig. 4 shows the X-ray diffraction analysis picture of cerium, titanium dioxide and the clay composite material of the embodiment of the invention 3 preparations, and first diffraction maximum place among the figure is imvite d001 crystal face.
Fig. 5 shows the X-ray diffraction analysis picture of cerium, titanium dioxide and the clay composite material of the embodiment of the invention 4 preparations, and first diffraction maximum place among the figure is imvite d001 crystal face.
Fig. 6 shows the X-ray diffraction analysis picture of cerium, titanium dioxide and the clay composite material of the embodiment of the invention 5 preparations, and first diffraction maximum place among the figure is imvite d001 crystal face.
Fig. 7 shows the X-ray diffraction analysis picture of cerium, titanium dioxide and the clay composite material of the embodiment of the invention 6 preparations, and first diffraction maximum place among the figure is imvite d001 crystal face.
Embodiment 1
With 4mL TiCl
4Liquid is dissolved in the 12mL absolute ethyl alcohol, stirred 0.5 hour, it is joined the 330g volume ratio is glycerine: obtain TiO 2 sol in the glycerin solution of water=1: 1, simultaneously the 0.26g cerous nitrate is dissolved in the 28mL absolute ethyl alcohol and obtains earth solution, then prepared above-mentioned colloidal sol and solution are added to the prefabricated clay content of 490g and be in clay/absolute ethyl alcohol suspension of 1.78%, stirred 3 hours, after room temperature leaves standstill 12 hours, carry out press filtration, 80 ℃ of oven dry, 400 ℃ of roastings 10 hours promptly obtain cerium of the present invention, titanium dioxide and clay composite material.
Embodiment 2;
With 6mL TiCl
4Liquid is dissolved in the 30mL absolute ethyl alcohol, stirred 0.5 hour, it is joined the 108g volume ratio is glycerine: obtain TiO 2 sol in the glycerin solution of water=2: 1, simultaneously the 0.26g cerous nitrate is dissolved in the 13.5mL absolute ethyl alcohol, then prepared above-mentioned two kinds of solution are added to the prefabricated clay content of 480g and be in clay/absolute ethyl alcohol suspension of 2.0%, stirred 3 hours, after room temperature leaves standstill 12 hours, carry out press filtration, 70 ℃ of oven dry, 500 ℃ of roastings 6 hours, promptly obtain cerium of the present invention, titanium dioxide and clay composite material.
Embodiment 3:
With 4mL TiCl
4Liquid is dissolved in the 10mL absolute ethyl alcohol, stirred 0.5 hour, it is joined the 120g volume ratio is glycerine: obtain TiO 2 sol in the glycerin solution of water=2: 1, simultaneously the 0.64g cerous nitrate is dissolved in the 22mL absolute ethyl alcohol, then prepared above-mentioned two kinds of solution are added to the prefabricated clay content of 305g and be in clay/absolute ethyl alcohol suspension of 1.95%, stirred 3 hours, after room temperature leaves standstill 12 hours, carry out press filtration, 80 ℃ of oven dry, 600 ℃ of roastings 4 hours, promptly obtain cerium of the present invention, titanium dioxide and clay composite material.
Embodiment 4:
With 6mL TiCl
4Liquid is dissolved in the 20mL absolute ethyl alcohol, stirred 0.5 hour, it is joined the 100g volume ratio is glycerine: obtain TiO 2 sol in the glycerin solution of water=1: 2, simultaneously the 0.43g cerous nitrate is dissolved in the 100mL absolute ethyl alcohol, then prepared above-mentioned two kinds of solution are added to the prefabricated clay content of 640g and be in clay/absolute ethyl alcohol suspension of 1.85%, stirred 3 hours, after room temperature leaves standstill 12 hours, carry out press filtration, 60 ℃ of oven dry, 550 ℃ of roastings 6 hours, promptly obtain cerium of the present invention, titanium dioxide and clay composite material.
Embodiment 5:
With 6.5mL TiCl
4Liquid is dissolved in the 15mL absolute ethyl alcohol, stirred 0.5 hour, it is joined the 180g volume ratio is glycerine: obtain TiO 2 sol in the glycerin solution of water=1: 1, simultaneously the 0.4g cerous nitrate is dissolved in the 60mL absolute ethyl alcohol, then prepared above-mentioned two kinds of solution are added to the prefabricated clay content of 400g and be in clay/absolute ethyl alcohol suspension of 1.5%, stirred 3 hours, after room temperature leaves standstill 12 hours, carry out press filtration, 80 ℃ of oven dry, 500 ℃ of roastings 8 hours, promptly obtain cerium of the present invention, titanium dioxide and clay composite material.
Embodiment 6:
With 4mL TiCl
4Liquid is dissolved in the 12mL absolute ethyl alcohol, stirred 0.5 hour, it is joined the 360g volume ratio is glycerine: obtain TiO 2 sol in the glycerin solution of water=1: 2.5, simultaneously the 0.7g cerous nitrate is dissolved in the 70mL absolute ethyl alcohol, then prepared above-mentioned two kinds of solution are added to the prefabricated clay content of 530g and be in clay/absolute ethyl alcohol suspension of 3.2%, stirred 3 hours, after room temperature leaves standstill 12 hours, carry out press filtration, 70 ℃ of oven dry, 600 ℃ of roastings 4 hours, promptly obtain cerium of the present invention, titanium dioxide and clay composite material.
Embodiment 7
The adding mass conservation that keeps titanium replaces 4mL TiCl among the embodiment 1 with 12.5mL butyl titanate liquid
4Liquid, other experiment condition promptly obtain cerium of the present invention, titanium dioxide and clay composite material with embodiment 1.
Embodiment 8
The adding mass conservation that keeps titanium replaces 4mL TiCl among the embodiment 1 with 10.5mL isopropyl titanate liquid
4Liquid, other experiment condition promptly obtain cerium of the present invention, titanium dioxide and clay composite material with embodiment 1.
Embodiment 9
The adding mass conservation that keeps titanium replaces 6mL TiCl among the embodiment 2 with 7.8mL metatitanic acid methyl esters liquid
4Liquid, other experiment condition promptly obtain cerium of the present invention, titanium dioxide and clay composite material with embodiment 2.
The adding mass conservation that keeps titanium replaces 6mL TiCl among the embodiment 2 with 11.3mL tetraethyl titanate liquid
4Liquid, other experiment condition promptly obtain cerium of the present invention, titanium dioxide and clay composite material with embodiment 2.
Embodiment 11
The adding mass conservation that keeps rare earth element, replace the 0.64g cerous nitrate among the embodiment 3 to be dissolved in absolute ethyl alcohol with 0.32g cerous nitrate and two kinds of rare-earth salts of 0.32g lanthanum nitrate, other experiment condition promptly obtains cerium of the present invention, lanthanum, titanium dioxide and clay composite material with embodiment 3.
Embodiment 12
The adding mass conservation that keeps rare earth element, replace the 0.64g cerous nitrate among the embodiment 3 to be dissolved in absolute ethyl alcohol with 0.32g cerous nitrate and two kinds of rare-earth salts of 0.32g neodymium nitrate, other experiment condition promptly obtains cerium of the present invention, neodymium, titanium dioxide and clay composite material with embodiment 3.
Embodiment 13
The adding mass conservation that keeps rare earth element, replace the 0.43g cerous nitrate among the embodiment 4 to be dissolved in absolute ethyl alcohol with 0.215g cerous nitrate and two kinds of rare-earth salts of 0.215g praseodymium nitrate, other experiment condition promptly obtains cerium of the present invention, praseodymium, titanium dioxide and clay composite material with embodiment 4.
Embodiment 14
The adding mass conservation that keeps rare earth element, replace the 0.43g cerous nitrate among the embodiment 4 to be dissolved in absolute ethyl alcohol with 0.215g cerous nitrate and two kinds of rare-earth salts of 0.2984g yttrium nitrate, other experiment condition promptly obtains cerium of the present invention, yttrium, titanium dioxide and clay composite material with embodiment 4.
The adding mass conservation that keeps rare earth element, replace the 0.4g cerous nitrate among the embodiment 5 to be dissolved in absolute ethyl alcohol with 0.2g cerous nitrate and two kinds of rare-earth salts of 0.1819g europium nitrate, other experiment condition promptly obtains cerium of the present invention, europium, titanium dioxide and clay composite material with embodiment 5.
Embodiment 16
The adding mass conservation that keeps rare earth element, replace the 0.7g cerous nitrate among the embodiment 6 to be dissolved in absolute ethyl alcohol with 0.35g cerous nitrate and two kinds of rare-earth salts of 0.3110g erbium nitrate, other experiment condition promptly obtains cerium of the present invention, erbium, titanium dioxide and clay composite material with embodiment 6.
Clay in the foregoing description 1～16 all refers to imvite.
Embodiment 17
Any inorganic clay compound material that makes in the foregoing description is added in the coating as additive, the mass percent of its addition in prepared coating is 2%～3%, prepare have defencive function or/and decoration functions or/and regulate the function of use of building or/and the coating of environment purification function; When being used to purify the air of a room, remove airborne pernicious gas formaldehyde, toluene or/and dimethylbenzene.
Embodiment 18
Embodiment 6 prepared inorganic clay compound materials are added to by 2% as additive prepare dope for inner wall of architecture in the traditional coating, this coating purifies formaldehyde gas and is up to state standards after testing.
Embodiment 19
Embodiment 6 prepared inorganic clay compound materials are added to by 3% as additive prepare dope for inner wall of architecture in the traditional coating, this coating purifies formaldehyde gas and is up to state standards after testing.
Claims (8)
1. inorganic clay compound material, it is characterized in that: form by rare earth element, titanium dioxide and clay, wherein, rare earth element is meant the combination of a kind of or any two kinds of rare earth elements in cerium, lanthanum, neodymium, praseodymium, yttrium, europium, the erbium, clay is meant imvite, and the quality percentage composition of its each component is imvite 54～90%, titanium dioxide 8～45%, rare earth oxide 0.1～4.0%.
2. the preparation method of the described inorganic clay compound material of claim 1, it is characterized in that: raw material and the mass percent that feeds intake are: titanium salt 0.6～1.8%, absolute ethyl alcohol 45～90%, rare-earth salts 0.013～0.08%, clay 0.8～1.8%, deionized water 3～30%, glycerine 4～35%, each amounts of components summation is 100%, wherein said clay is meant imvite, titanium salt is meant butyl titanate, isopropyl titanate, the metatitanic acid methyl esters, tetraethyl titanate, in the titanium tetrachloride any one, rare-earth salts is meant cerium, lanthanum, neodymium, praseodymium, yttrium, europium, the pure dissolubility salt of the combination of a kind of or any two kinds of rare earth elements in the erbium; Operating procedure is: be made into TiO 2 sol with titanium salt, absolute ethyl alcohol and glycerine solution, be made into earth solution with rare-earth salts and absolute ethyl alcohol, it is in the slurry of medium that above-mentioned colloidal sol and solution are added to successively with the absolute ethyl alcohol, at room temperature stir and leave standstill aging 12 hours after 3 hours, carry out drying down in 60 ℃～80 ℃ after liquid is removed in press filtration, 400 ℃～600 ℃ high-temperature roastings promptly obtained described composite in 4～10 hours.
3. according to the preparation method of the described inorganic clay compound material of claim 2, it is characterized in that: use titanium salt, the operating procedure that absolute ethyl alcohol and glycerine solution are made into TiO 2 sol is, be dissolved in the absolute ethyl alcohol that satisfies above-mentioned raw materials and feed intake mass percent satisfying the liquid titanium salt of above-mentioned raw materials with the mass percent that feeds intake, the volume ratio of used liquid titanium salt and absolute ethyl alcohol is 4～12.5: 10～30, through stirring, it is joined in the glycerin solution of the weight that satisfies above-mentioned raw materials and feed intake mass percent, the glycerine in this glycerin solution and the volume ratio of water are 1～2: 1～2.5, make TiO 2 sol.
4. according to the preparation method of the described inorganic clay compound material of claim 2, it is characterized in that: be in the slurry of medium with the absolute ethyl alcohol, the content of clay is 1.5%～3.2%.
5. according to the preparation method of claim 2 or 3 described inorganic clay compound materials, it is characterized in that: its used titanium salt is a titanium tetrachloride.
6. according to the preparation method of the described inorganic clay compound material of claim 2, it is characterized in that: rare-earth salts is a cerous nitrate.
7. the purposes of the described inorganic clay compound material of claim 1 is characterized in that: be added in the coating as additive, prepare have defencive function or/and decoration functions or/and regulate the function of use of building or/and the coating of environment purification function; When being used to purify the air of a room, remove airborne pernicious gas formaldehyde, toluene or/and dimethylbenzene.
8. according to the purposes of the described inorganic clay compound material of claim 6, it is characterized in that: when being added in the coating as additive, the mass percent of its addition in prepared coating is 2%～3%.
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| CN100427392C (en) * | 2006-04-14 | 2008-10-22 | 西北师范大学 | Rare earth particle and montmorillonite nano composite materials and process for preparing same |
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| CN101456972B (en) * | 2008-12-30 | 2011-07-20 | 南京师范大学 | Montmorillonite/rare-earth stabilizer for PVC and preparation method thereof |
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| CN111675520A (en) * | 2020-06-12 | 2020-09-18 | 郑州高聚粉体科技有限公司 | Inorganic ecological wall material for purifying indoor air and preparation method thereof |
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| JPH07313875A (en) * | 1994-03-31 | 1995-12-05 | Matsushita Electric Works Ltd | Inorganic porous body and its production |
| CN1186123C (en) * | 2002-12-31 | 2005-01-26 | 中国建筑材料科学研究院 | Multi-waveband photocatalytic material, preparation method thereof and air-purifying exposed wall coating composition |
| AU2003226632B2 (en) * | 2003-03-31 | 2007-03-22 | Council Of Scientific And Industrial Research | Ti-pillared clay based vandia catalyst and process for preparation |
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2005
- 2005-07-06 CN CNB2005100143881A patent/CN100369668C/en not_active Expired - Fee Related
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