CN107935039B - Preparation method of titanium dioxide water-based sol - Google Patents
Preparation method of titanium dioxide water-based sol Download PDFInfo
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- CN107935039B CN107935039B CN201711430340.8A CN201711430340A CN107935039B CN 107935039 B CN107935039 B CN 107935039B CN 201711430340 A CN201711430340 A CN 201711430340A CN 107935039 B CN107935039 B CN 107935039B
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G23/00—Compounds of titanium
- C01G23/04—Oxides; Hydroxides
- C01G23/047—Titanium dioxide
- C01G23/053—Producing by wet processes, e.g. hydrolysing titanium salts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G23/00—Compounds of titanium
- C01G23/04—Oxides; Hydroxides
- C01G23/047—Titanium dioxide
- C01G23/053—Producing by wet processes, e.g. hydrolysing titanium salts
- C01G23/0532—Producing by wet processes, e.g. hydrolysing titanium salts by hydrolysing sulfate-containing salts
Abstract
The invention discloses a preparation method of titanium dioxide water sol, which comprises the steps of slowly adding an alkali solution into a titanium inorganic salt solution, dissolving metatitanic acid obtained by hydrolyzing the titanium inorganic salt as a main raw material by hydrogen peroxide to obtain water-soluble peroxotitanic acid, adding deionized water into the peroxotitanic acid solution to adjust the solid content, adding an alcohol solution, irradiating and stirring for a certain time by ultraviolet light, and irradiating TiO by the ultraviolet light2The sol particles are uniformly distributed and the average particle size is reduced, thereby improving TiO2The crystallization degree of the nano particles at room temperature uses pure ultraviolet light to replace the traditional heating mode, thereby realizing the TiO2To obtain the transparent aqueous titanium dioxide sol. The method has the advantages of simple and easily-controlled process, environment friendliness, no need of complex equipment, low preparation cost and capability of preparing the prepared TiO2The colloidal particles have good crystallinity and uniform particle size, are suitable for mass preparation, have the possibility of industrial production and have wide application prospect.
Description
Technical Field
The invention relates to the technical field of inorganic nano sol, in particular to a method for preparing titanium dioxide water sol at normal temperature and normal pressure.
Background
Nano TiO 22The material has excellent optical properties, high chemical stability, thermal stability, nontoxicity, super-hydrophilicity and non-migration, can completely contact with food, and is widely applied to uvioresistant materials, textiles, photocatalysts, self-cleaning glass, sun cream, coatings, printing ink, food packaging materials, paper industry, aerospace industry and solar cells, and the synthesis and application research of the material is always the research focus in the field of related functional materials. In recent years, with the improvement of living standard of people, the pursuit of good life is increasing. The application of titanium dioxide photocatalysis products in the aspect of indoor air purification is also developed rapidly.
The traditional titanium dioxide sol preparation method generally adopts a hydrolysis reaction method. The method is mainly divided into two categories of organic titanium sources and inorganic titanium sources according to different raw materials. The commonly used organic titanium source is mainly titanium alkoxide, the titanium alkoxide is dissolved in a non-aqueous solvent, and the titanium alkoxide is controlled to be hydrolyzed by stirring and adding an inhibitor to obtain titanium dioxide sol, and the titanium dioxide sol is obtained by the method and is generally non-aqueous sol. Since the organic titanium source and the solvent are expensive, researchers have begun to use inorganic titanium sources to prepare aqueous sols. Usually comprising two steps of precipitation and peptization. Firstly, titanium dioxide precipitation is generated from a titanium-containing inorganic compound under the action of an alkali solution, and then the titanium dioxide precipitation is peptized under the action of an acid and is re-dispersed in water to prepare titanium dioxide sol. During peptization, microwave heating or traditional heating is usually introduced to control the reaction rate. In addition, the titanium dioxide sol is prepared by an ultrasonic method, and the mechanical action, the cavitation action and the thermal effect of the ultrasonic wave are utilized.
The authors investigated the densification and crystallization effects of UV irradiation on titania sol coatings in the literature "Alternative modification methods for sol-gel coatings of silica, titania and silica-titania using ultraviolet irradiation and Waterpower". In the study on the influence of ultraviolet radiation on titanium dioxide sol, tube autogenous et al utilized ultraviolet radiation to uniformly distribute titanium dioxide sol particles and reduce the average particle size, thereby improving TiO2The crystallization degree of the nano particles at room temperature shows that the TEM appearance of the non-light-radiation titanium dioxide particles shows that the titanium dioxide nano particles are distributed more dispersedly and are different from 3-45 nm series and irregular in shape, and the TiO obtained by the light radiation treatment2The nano particles are narrow in distribution and regular in shape, and the size is concentrated in the range of 5-20 nm. In the literature "UV irradiation effects on TiO2In thin films, the authors investigated the UV-light on TiO2The effect of film properties, simulating service conditions in aerospace applications. A comparison document discloses alkaline earth metal doped nano bismuth titanate and a preparation method thereof, with application number CN 05753048A, which discloses that "ultraviolet radiation sol is utilized to make a complex functional group in an excited state, i.e. a certain energy is given to the complex, so that nano powder can be obtained without too high temperature in the subsequent sintering process. "and the like. The above reports are all the effects of ultraviolet irradiation on the prepared titanium dioxide sol, but not how to prepare the titanium-containing solution into the titanium dioxide sol by using the ultraviolet light.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides a simple titanium dioxide aqueous sol preparation process, pure ultraviolet light is used for replacing the traditional heating mode, and the solution containing titanium is prepared into the titanium dioxide sol by utilizing the ultraviolet light, so that the crystallization of titanium dioxide is realized, the large-scale production can be realized, the crystallinity is good, and the wide applicability is realized.
The technical scheme adopted by the invention is as follows: a preparation method of titanium dioxide water sol comprises and is carried out according to the following process steps:
1) slowly adding an alkali solution into an inorganic salt solution of titanium to obtain metatitanic acid precipitate, adding deionized water into the metatitanic acid precipitate after the metatitanic acid precipitate is completely precipitated, standing and clarifying, removing supernatant, and washing for multiple times to make the metatitanic acid precipitate neutral;
2) adding hydrogen peroxide into the metatitanic acid precipitate which is obtained in the step 1) and is neutral after being washed by multiple times of water, and uniformly stirring and mixing to peptize the metatitanic acid precipitate to obtain a yellow and opaque peroxotitanic acid solution;
3) adding deionized water into the peroxytitanic acid solution obtained in the step 2), adjusting the solid content of the solution to be 0.5-2 wt%, and adding an alcohol solution;
4) and (3) irradiating the solution obtained in the step 3) under ultraviolet light, and simultaneously mechanically stirring the solution to obtain the transparent titanium dioxide hydrosol after a period of time.
As a further improvement of the technical scheme, the alkali solution in the step 1) is one or more of a sodium hydroxide solution, a potassium hydroxide solution or ammonia water.
As a further improvement of the technical scheme, the inorganic salt solution of the titanium in the step 1) is one or two of titanyl sulfate and titanyl nitrate, and the Ti4+The concentration is 0.05-1 mol/l.
As a further improvement of the technical scheme, the pH value of metatitanic acid in the step 1) is 7-12 when the metatitanic acid is completely precipitated.
As a further improvement of the technical scheme, the pH value of the metatitanic acid precipitate which is neutral after being washed for multiple times in the step 1) is 6.5-7.5.
As a further improvement of the above technical scheme, the concentration of the hydrogen peroxide in the step 2) is 20-30%, and the hydrogen peroxide and the Ti are mixed4+The molar ratio of (A) to (B) is 1-1.5: 1.
As a further improvement of the technical proposal, the alcohol in the step 3) is one or two of isopropanol or n-butanol, and the adding amount of the alcohol is 1 to 5 weight percent of the mass of the adjusted solution.
As a further improvement of the technical scheme, the wavelength of the ultraviolet light in the step 4) is 100nm-400 nm.
As a further improvement of the technical scheme, the ultraviolet irradiation time in the step 4) is 1-20 h.
As a further improvement of the technical scheme, the reaction conditions of the preparation method are normal temperature and normal pressure.
The invention has the beneficial effects that: slowly adding an alkali solution into a titanium inorganic salt solution, dissolving metatitanic acid obtained by hydrolyzing the titanium inorganic salt as a main raw material by hydrogen peroxide to obtain water-soluble peroxotitanic acid, adding deionized water into the peroxotitanic acid solution to adjust the solid content of a system, adding an alcohol solution, irradiating and stirring by ultraviolet light for a certain time, and utilizing the ultraviolet light to ensure that titanium dioxide sol particles are uniformly distributed and the average particle size is reduced, thereby improving the TiO content2The crystallization degree of the nano particles at room temperature adopts pure ultraviolet light to replace the traditional heating mode, so that the crystallization of the titanium dioxide is realized, and the transparent titanium dioxide hydrosol is obtained. The method has the advantages of simple and easily-controlled process, environmental protection, no need of complex equipment, low preparation cost, good crystallinity of the prepared titanium dioxide colloid particles, uniform particle size, suitability for mass preparation, industrial production possibility and wide application prospect.
Detailed Description
The present invention is specifically described below with reference to examples in order to facilitate understanding of the present invention by those skilled in the art. It should be particularly noted that the examples are given solely for the purpose of illustration and are not to be construed as limitations on the scope of the invention, as non-essential improvements and modifications to the invention may occur to those skilled in the art, which fall within the scope of the invention as defined by the appended claims. Meanwhile, the raw materials mentioned below are not specified in detail and are all commercial products; the process steps or preparation methods not mentioned in detail are all process steps or preparation methods known to the person skilled in the art.
Example 1
A preparation method of titanium dioxide water sol comprises and is carried out according to the following process steps:
1) firstly, preparing 0.1mol/l titanyl sulfate aqueous solution at normal temperature and normal pressure, slowly adding ammonia water while stirring to completely precipitate metatitanic acid, wherein the pH value of metatitanic acid precipitate is 10, then adding deionized water into metatitanic acid precipitate, stirring, standing, clarifying, pouring out supernatant, and washing for multiple times to ensure that the pH value of metatitanic acid precipitate is 7.5;
2) adding hydrogen peroxide with the concentration of 20 percent, hydrogen peroxide and Ti into the metatitanic acid precipitate which is obtained in the step 1) and is neutral after being washed for multiple times4+In a molar ratio of 1: 1, uniformly stirring and mixing to obtain a yellow and opaque peroxotitanic acid solution;
3) adding deionized water into the peroxotitanic acid solution obtained in the step 2), adjusting the solid content to 1 wt%, and adding 1 wt% of n-butanol;
4) irradiating the solution obtained in the step 3) under an ultraviolet lamp with the central wavelength of 254nm, stirring the solution, obtaining transparent titanium dioxide aqueous sol after 5 hours, and utilizing ultraviolet radiation to ensure that titanium dioxide sol particles are uniformly distributed and the average particle size is reduced, thereby improving TiO2The crystallization degree of the nano particles at room temperature, thereby realizing the crystallization of the titanium dioxide.
Example 2
A preparation method of titanium dioxide water sol comprises and is carried out according to the following process steps:
1) firstly, preparing 0.1mol/l titanyl sulfate aqueous solution at normal temperature and normal pressure, slowly adding ammonia water while stirring to ensure that metatitanic acid is completely precipitated, adding deionized water, stirring, standing, clarifying, pouring out supernatant, and adjusting the pH of metatitanic acid precipitate to 7.2 by multiple times of water washing;
2) adding hydrogen peroxide with the concentration of 20 percent, hydrogen peroxide and Ti into the metatitanic acid precipitate which is obtained in the step 1) and is neutral after being washed for multiple times4+In a molar ratio of 1: 1, uniformly stirring and mixing to obtain a yellow and opaque peroxotitanic acid solution;
3) adding deionized water into the peroxotitanic acid solution obtained in the step 2), adjusting the solid content of the peroxotitanic acid solution to 1 wt%, and adding 1 wt% of isopropanol;
4) and (3) placing the solution obtained in the step 3) under an ultraviolet lamp with the central wavelength of 254nm for irradiation, stirring the solution, and obtaining the transparent titanium dioxide water-based sol after 5 hours.
Example 3
A preparation method of titanium dioxide water sol comprises and is carried out according to the following process steps:
1) firstly, preparing 0.05mol/l titanyl nitrate solution at normal temperature and normal pressure, slowly adding ammonia water while stirring to ensure that metatitanic acid is completely precipitated, adding deionized water, stirring, standing, clarifying, pouring out supernatant, and adjusting the pH of metatitanic acid precipitate to 7.0 by multiple times of water washing;
2) adding hydrogen peroxide with the concentration of 20 percent, hydrogen peroxide and Ti into the metatitanic acid precipitate which is obtained in the step 1) and is neutral after being washed for multiple times4+In a molar ratio of 1: 1, uniformly stirring and mixing to obtain a yellow and opaque peroxotitanic acid solution;
3) adding deionized water into the peroxotitanic acid solution obtained in the step 2), adjusting the solid content to 1 wt%, and adding 1 wt% of n-butanol;
4) and (3) placing the solution obtained in the step 3) under an ultraviolet lamp with the central wavelength of 254nm for irradiation, stirring the solution, and obtaining the transparent titanium dioxide water-based sol after 5 hours.
Example 4
A preparation method of titanium dioxide water sol comprises and is carried out according to the following process steps:
1) firstly, preparing 0.1mol/l titanyl sulfate aqueous solution at normal temperature and normal pressure, slowly adding ammonia water while stirring to ensure that metatitanic acid is completely precipitated, adding deionized water, stirring, standing, clarifying, pouring out supernatant, and adjusting the pH of metatitanic acid precipitate to 6.5 by multiple times of water washing;
2) adding hydrogen peroxide with the concentration of 20 percent, hydrogen peroxide and Ti into the metatitanic acid precipitate which is obtained in the step 1) and is neutral after being washed for multiple times4+In a molar ratio of 1: 1, uniformly stirring and mixing to obtain a yellow and opaque peroxotitanic acid solution;
3) adding deionized water into the peroxotitanic acid solution obtained in the step 2), adjusting the solid content to 1 wt%, and adding 1 wt% of n-butanol;
4) and (3) placing the solution obtained in the step 3) under an ultraviolet lamp with the central wavelength of 365nm for irradiation, stirring the solution, and obtaining the transparent titanium dioxide water-based sol after 20 hours.
Example 5
A preparation method of titanium dioxide water sol comprises and is carried out according to the following process steps:
1) firstly, preparing 0.1mol/l titanyl sulfate aqueous solution at normal temperature and normal pressure, slowly adding sodium hydroxide solution while stirring to ensure that metatitanic acid is completely precipitated, adding deionized water, stirring, standing, clarifying, pouring out supernatant, and adjusting the pH of metatitanic acid precipitate to 7.5 by multiple times of water washing;
2) adding hydrogen peroxide with the concentration of 20 percent, hydrogen peroxide and Ti into the metatitanic acid precipitate which is obtained in the step 1) and is neutral after being washed for multiple times4+In a molar ratio of 1: 1, uniformly stirring and mixing to obtain a yellow and opaque peroxotitanic acid solution;
3) adding deionized water into the peroxotitanic acid solution obtained in the step 2), adjusting the solid content to 1 wt%, and adding 1 wt% of n-butanol;
4) and (3) placing the solution obtained in the step 3) under an ultraviolet lamp with the central wavelength of 100nm for irradiation, stirring the solution, and obtaining the transparent titanium dioxide water-based sol after 5 hours.
Example 6
A preparation method of titanium dioxide water sol comprises and is carried out according to the following process steps:
1) firstly, preparing 0.1mol/l titanyl sulfate aqueous solution at normal temperature and normal pressure, slowly adding potassium hydroxide solution while stirring to ensure that metatitanic acid is completely precipitated, adding deionized water, stirring, standing, clarifying, pouring out supernatant, and adjusting the pH of metatitanic acid precipitate to 7.5 by multiple times of water washing;
2) adding hydrogen peroxide with the concentration of 20 percent, hydrogen peroxide and Ti into the metatitanic acid precipitate which is obtained in the step 1) and is neutral after being washed for multiple times4+In a molar ratio of 1: 1, uniformly stirring and mixing to obtain a yellow and opaque peroxotitanic acid solution;
3) adding deionized water into the peroxotitanic acid solution obtained in the step 2), adjusting the solid content to 1 wt%, and adding 1 wt% of n-butanol;
4) and (3) placing the solution obtained in the step 3) under an ultraviolet lamp with the central wavelength of 400nm for irradiation, stirring the solution, and obtaining the transparent titanium dioxide water-based sol after 5 hours.
Example 7
A preparation method of titanium dioxide water sol comprises and is carried out according to the following process steps:
1) firstly, preparing 0.1mol/l titanyl sulfate aqueous solution at normal temperature and normal pressure, slowly adding ammonia water while stirring to ensure that metatitanic acid is completely precipitated, adding deionized water, stirring, standing, clarifying, pouring out supernatant, and adjusting the pH of metatitanic acid precipitate to 7.5 by multiple times of water washing;
2) adding hydrogen peroxide with the concentration of 20 percent, hydrogen peroxide and Ti into the metatitanic acid precipitate which is obtained in the step 1) and is neutral after being washed for multiple times4+In a molar ratio of 1: 1, uniformly stirring and mixing to obtain a yellow and opaque peroxotitanic acid solution;
3) adding deionized water into the peroxotitanic acid solution obtained in the step 2), adjusting the solid content to 1 wt%, and adding 1 wt% of n-butanol;
4) and (3) placing the solution obtained in the step 3) under an ultraviolet lamp with the central wavelength of 194nm for irradiation, stirring the solution, and obtaining the transparent titanium dioxide water-based sol after 1 hour.
The above embodiments are preferred embodiments of the present invention, and all similar processes and equivalent variations to those of the present invention should fall within the scope of the present invention.
Claims (10)
1. The preparation method of the titanium dioxide water sol is characterized by comprising the following steps in sequence:
1) slowly adding an alkali solution into an inorganic salt solution of titanium to obtain metatitanic acid precipitate, adding deionized water into the metatitanic acid precipitate after the metatitanic acid precipitate is completely precipitated, standing and clarifying, removing supernatant, and washing for multiple times to make the metatitanic acid precipitate neutral;
2) adding hydrogen peroxide into the metatitanic acid precipitate which is obtained in the step 1) and is neutral after being washed by multiple times of water, and uniformly mixing the hydrogen peroxide and the hydrogen peroxide to obtain a yellow and opaque peroxotitanic acid solution;
3) adding deionized water into the peroxytitanic acid solution obtained in the step 2), adjusting the solid content of the solution to be 0.5-2 wt%, and adding alcohol;
4) and (3) irradiating the solution obtained in the step 3) under ultraviolet light, and mechanically stirring the solution to obtain the transparent titanium dioxide water-based sol.
2. The method for producing an aqueous titania sol according to claim 1, wherein: the alkali solution in the step 1) is one or more of a sodium hydroxide solution, a potassium hydroxide solution or ammonia water.
3. The method for producing an aqueous titania sol according to claim 1, wherein: the inorganic salt solution of the titanium in the step 1) is one or two of titanyl sulfate and titanyl nitrate, and the Ti4+The concentration is 0.05-1 mol/l.
4. The method for producing an aqueous titania sol according to claim 1, wherein: the pH value of the metatitanic acid in the step 1) is 7-12 when the metatitanic acid is completely precipitated.
5. The method for producing an aqueous titania sol according to claim 1, wherein: the pH value of the metatitanic acid precipitate which is neutral after multiple times of washing in the step 1) is 6.5-7.5.
6. The method for producing an aqueous titania sol according to claim 1, wherein: the concentration of the hydrogen peroxide in the step 2) is 20-30 percent, and the hydrogen peroxide and Ti are4+The molar ratio of (A) to (B) is 1-1.5: 1.
7. the method for producing an aqueous titania sol according to claim 1, wherein: the alcohol in the step 3) is one or two of isopropanol or n-butanol, and the adding amount of the alcohol is 1-5 wt% of the adjusted solution.
8. The method for producing an aqueous titania sol according to claim 1, wherein: the wavelength of the ultraviolet light in the step 4) is 100nm-400 nm.
9. The method for producing an aqueous titania sol according to claim 1, wherein: the ultraviolet light irradiation time in the step 4) is 1-20 h.
10. The method for producing an aqueous titania sol according to claim 1, wherein the reaction conditions in the production method are normal temperature and normal pressure.
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| CN111151233B (en) * | 2019-12-31 | 2022-07-08 | 陕西科技大学 | Oxygen-deficient TiO2Normal temperature and pressure water phase preparation method |
| CN113003617B (en) * | 2021-02-26 | 2023-11-14 | 南方科技大学 | Multi-element oxide and preparation method and application thereof |
| CN115024315A (en) * | 2022-04-22 | 2022-09-09 | 北京富莱士博科技发展有限公司 | Synthetic method of antibacterial nano hydrosol |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1441856A (en) * | 2000-07-25 | 2003-09-10 | 关西涂料株式会社 | Coating material for forming titanium oxide film, method for forming titanium oxide film and use of said coating material |
| CN1623907A (en) * | 2003-12-04 | 2005-06-08 | 株式会社三得科 | Method of producing titania solution |
| CN101456583A (en) * | 2007-12-12 | 2009-06-17 | 中国科学院理化技术研究所 | Synthetic method for preparing rutile type nano titanic oxide sol or powder at low temperature |
| CN101734615A (en) * | 2009-11-24 | 2010-06-16 | 哈尔滨工业大学 | Method for preparing metal/titanium dioxide composite nano material at low temperature by gamma-irradiation |
| CN102001703A (en) * | 2010-09-16 | 2011-04-06 | 中国石油大学(北京) | Method for preparing titanium dioxide powder and sol |
| CN104338522A (en) * | 2013-08-01 | 2015-02-11 | 京程科技股份有限公司 | Preparing method of titanium dioxide sol photocatalyst and applications of the titanium dioxide sol photocatalyst in decontamination and self-cleaning |
-
2017
- 2017-12-26 CN CN201711430340.8A patent/CN107935039B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1441856A (en) * | 2000-07-25 | 2003-09-10 | 关西涂料株式会社 | Coating material for forming titanium oxide film, method for forming titanium oxide film and use of said coating material |
| CN1623907A (en) * | 2003-12-04 | 2005-06-08 | 株式会社三得科 | Method of producing titania solution |
| CN101456583A (en) * | 2007-12-12 | 2009-06-17 | 中国科学院理化技术研究所 | Synthetic method for preparing rutile type nano titanic oxide sol or powder at low temperature |
| CN101734615A (en) * | 2009-11-24 | 2010-06-16 | 哈尔滨工业大学 | Method for preparing metal/titanium dioxide composite nano material at low temperature by gamma-irradiation |
| CN102001703A (en) * | 2010-09-16 | 2011-04-06 | 中国石油大学(北京) | Method for preparing titanium dioxide powder and sol |
| CN104338522A (en) * | 2013-08-01 | 2015-02-11 | 京程科技股份有限公司 | Preparing method of titanium dioxide sol photocatalyst and applications of the titanium dioxide sol photocatalyst in decontamination and self-cleaning |
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