CN104261469B - A kind of titanium dioxide and its preparation method and application - Google Patents

A kind of titanium dioxide and its preparation method and application Download PDF

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Publication number
CN104261469B
CN104261469B CN201410559421.8A CN201410559421A CN104261469B CN 104261469 B CN104261469 B CN 104261469B CN 201410559421 A CN201410559421 A CN 201410559421A CN 104261469 B CN104261469 B CN 104261469B
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titanium dioxide
preparation
reaches
degradation rate
methyl alcohol
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CN104261469A (en
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魏明灯
邓其馨
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Fuzhou University
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Fuzhou University
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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
    • C01G23/0534—Producing by wet processes, e.g. hydrolysing titanium salts by hydrolysing sulfate-containing salts in the presence of seeds
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2002/00—Crystal-structural characteristics
    • C01P2002/70—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data
    • C01P2002/72—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data by d-values or two theta-values, e.g. as X-ray diagram
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/01—Particle morphology depicted by an image
    • C01P2004/04—Particle morphology depicted by an image obtained by TEM, STEM, STM or AFM
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/60—Particles characterised by their size
    • C01P2004/64—Nanometer sized, i.e. from 1-100 nanometer
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/12—Surface area

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
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  • Inorganic Chemistry (AREA)
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Abstract

The invention discloses a kind of titanium dioxide and its preparation method and application, by alcohols, solid alkali, methane polychloride and urea in mass ratio for 1:0.2:1:0.1 is mixed with mixing solutions, 0.5 ~ 100 gram of titanyl sulfate and 10 ~ 1000 milliliters of mixing solutionss mix, and react 1 ~ 7 day at 80 ~ 200 DEG C; The product generated is after methyl alcohol fully washs, and constant pressure and dry 1 ~ 40h at 50 ~ 100 DEG C, obtains Titanium Dioxide material.The present invention not only easy and simple to handle, cost is low, can synthesis of titanium dioxide in a large number, and the Titanium Dioxide material of preparation is Anatase, and specific surface reaches 400m 2/ more than g, purity is high, catalytic activity is high, stable performance, and within 12 hours under radiation of visible light condition, reach more than 80% to the degradation rate of toluene and dimethylbenzene, the degradation rate of PARA FORMALDEHYDE PRILLS(91,95) reaches more than 90%.

Description

A kind of titanium dioxide and its preparation method and application
Technical field
The invention belongs to nano material Synthesis and applications field, more specifically relate to a kind of titanium dioxide and preparation method thereof and its application in degradation of formaldehyde and benzene homologues.
Background technology
Very harmful to human body of volatile organic matter in indoor environment, particularly formaldehyde and benzene homologues etc.At present, investigator's absorption and mode of catalysis of adopting reduces formaldehyde in indoor environment and benzene homologues more.High-activity titanium deoxide has larger specific surface area due to it, narrower pore size distribution, and the special construction on surface and self-dispersing can become the ideal material of catalyzed degradation indoor environment volatile organic matter.
Summary of the invention
The object of this invention is to provide a kind of titanium dioxide and its preparation method and application, not only easy and simple to handle, cost is low, can synthesis of titanium dioxide in a large number, and the Titanium Dioxide material of preparation is Anatase, and specific surface reaches 400m 2/ more than g, purity is high, catalytic activity is high, stable performance, and within 12 hours under radiation of visible light condition, reach more than 80% to the degradation rate of toluene and dimethylbenzene, the degradation rate of PARA FORMALDEHYDE PRILLS(91,95) reaches more than 90%.
For achieving the above object, the present invention adopts following technical scheme:
By alcohols, solid alkali, methane polychloride and urea in mass ratio for 1:0.2:1:0.1 is mixed with mixing solutions, 0.5 ~ 100 gram of titanyl sulfate and 10 ~ 1000 milliliters of mixing solutionss mix, and react 1 ~ 7 day at 80 ~ 200 DEG C; The product generated is after methyl alcohol fully washs, and constant pressure and dry 1 ~ 40h at 50 ~ 100 DEG C, obtains Titanium Dioxide material.
Described solid alkali is caustic soda or potassium hydroxide.
Described alcohols is the one in methyl alcohol, ethanol, Virahol, glycerine.
Obtained titanium dioxide is Anatase, specific surface area>=400m 2/ g, particle diameter is 5 ~ 12nm, and its surface is containing a large amount of hydroxyls and N doping.
Obtained titanium dioxide is used for degradation of formaldehyde and benzene homologues, and within 12 hours under radiation of visible light condition, reach more than 80% to the degradation rate of toluene and dimethylbenzene, the degradation rate of PARA FORMALDEHYDE PRILLS(91,95) reaches more than 90%, and stable performance.
Remarkable advantage of the present invention is: under adding the condition of any tensio-active agent and template at a lower temperature and not, has prepared the high-activity titanium deoxide catalytic material of degradable formaldehyde and benzene homologues by simple method.The high-activity titanium deoxide of preparation is Anatase, and its specific surface reaches 400m 2/ more than g, particle diameter is 5 ~ 12nm, and its surface is containing a large amount of hydroxyls and N doping.Because its surface is containing a large amount of hydroxyls, therefore there is good self-dispersing energy.Compared with pure titanium dioxide, there is the red shift of ABSORPTION EDGE, N in the sample of N doping 2pand O 2ptrack mixes the new valence band of formation, valence band location is moved to conduction band positions, energy gap reduces, the energy that electronics transits to conduction band by valence band in light activated situation reduces, more than 80% was reached to the degradation rate of toluene and dimethylbenzene in 12 hours under radiation of visible light condition, the degradation rate of PARA FORMALDEHYDE PRILLS(91,95) reaches more than 90%, and stable performance.
Accompanying drawing explanation
Fig. 1 is the X-ray powder diffraction figure of the titanium dioxide that the present invention obtains.
Fig. 2 is the transmission electron microscope photo of the titanium dioxide that the present invention obtains.
Fig. 3 is the nitrogen adsorption desorption isothermal curve figure of the titanium dioxide that the present invention obtains.
Fig. 4 is the toluene of the titanium dioxide that the present invention obtains, the catalyzed degradation performance map of dimethylbenzene and formaldehyde.
Embodiment
By alcohols, solid alkali, methane polychloride and urea in mass ratio for 1:0.2:1:0.1 is mixed with mixing solutions, 0.5 ~ 100 gram of titanyl sulfate and 10 ~ 1000 milliliters of mixing solutionss mix, and react 1 ~ 7 day at 80 ~ 200 DEG C; The product generated is after methyl alcohol fully washs, and constant pressure and dry 1 ~ 40h at 50 ~ 100 DEG C, obtains Titanium Dioxide material.
Described solid alkali is caustic soda or potassium hydroxide.
Described alcohols is the one in methyl alcohol, ethanol, Virahol, glycerine.
Obtained titanium dioxide is Anatase, specific surface area>=400m 2/ g, particle diameter is 5 ~ 12nm, and its surface is containing a large amount of hydroxyls and N doping.
Obtained titanium dioxide is used for the testing method of degradation of formaldehyde and benzene homologues: get toluene, dimethylbenzene, methanol solution 0.02mL as source of release, insert in organic volatile gas collecting storehouse respectively, temperature 23 DEG C in storehouse, humidity 30%, places 30min concentration and reaches balance; Open visible ray and recirculating air, light source is 50 wavelength is the blue LED of 458nm.Titanium deoxide catalyst water is coated in oven dry on square glass sheet equably and is placed in diode top, and reactor is airtight container.General-purpose gas detecting instrument is adopted to measure dimethylbenzene, toluene under different condition respectively, the change in concentration of formaldehyde.The high-activity titanium deoxide catalytic material prepared after tested reaches more than 80% to the degradation rate of toluene and dimethylbenzene in 12 hours under radiation of visible light condition, and the degradation rate of PARA FORMALDEHYDE PRILLS(91,95) reaches more than 90%, and stable performance.
Embodiment 1
By alcohols, solid alkali, methane polychloride and urea in mass ratio for 1:0.2:1:0.1 is mixed with mixing solutions, 50 grams of titanyl sulfates and 500 milliliters of mixing solutionss mix, and react 2 days at 100 DEG C; The product generated is after methyl alcohol fully washs, and at 50 DEG C, constant pressure and dry 20h is finally obtained high-activity titanium deoxide catalytic material.
Described alcohols is methyl alcohol.
Described solid alkali is caustic soda.
Described methane polychloride is methylene dichloride.
Obtained high-activity titanium deoxide catalytic material reaches 84% to the degradation rate of toluene in 12 hours under radiation of visible light condition, and the degradation rate of p-Xylol reaches 81%, and the degradation rate of PARA FORMALDEHYDE PRILLS(91,95) reaches 92%, and stable performance.Its specific surface reaches 412m 2/ g, particle diameter is about 8nm, and its surface is containing a large amount of hydroxyls and N doping.
The foregoing is only preferred embodiment of the present invention, all equalizations done according to the present patent application the scope of the claims change and modify, and all should belong to covering scope of the present invention.

Claims (6)

1. the preparation method of a titanium dioxide, it is characterized in that: by alcohols, solid alkali, methane polychloride and urea in mass ratio for 1:0.2:1:0.1 is mixed with mixing solutions, 0.5 ~ 100 gram of titanyl sulfate and 10 ~ 1000 milliliters of mixing solutionss mix, and react 1 ~ 7 day at 80 ~ 200 DEG C; The product generated is after methyl alcohol fully washs, and constant pressure and dry 1 ~ 40h at 50 ~ 100 DEG C, obtains Titanium Dioxide material.
2. the preparation method of titanium dioxide according to claim 1, is characterized in that: described solid alkali is caustic soda or potassium hydroxide.
3. the preparation method of titanium dioxide according to claim 1, is characterized in that: described alcohols is the one in methyl alcohol, ethanol, Virahol, glycerine.
4. the titanium dioxide that the method for claim 1 is obtained, is characterized in that: obtained N is titania-doped is Anatase, specific surface area>=400m 2/ g, particle diameter is 5 ~ 12nm, and its surface is containing a large amount of hydroxyls.
5. the application of titanium dioxide that obtains of the method for claim 1, is characterized in that: obtained titanium dioxide is used for degradation of formaldehyde and benzene homologues.
6. application according to claim 5, is characterized in that: obtained titanium dioxide reaches more than 80% to the degradation rate of toluene and dimethylbenzene in 12 hours under radiation of visible light condition, and the degradation rate of PARA FORMALDEHYDE PRILLS(91,95) reaches more than 90%, and stable performance.
CN201410559421.8A 2014-10-21 2014-10-21 A kind of titanium dioxide and its preparation method and application Expired - Fee Related CN104261469B (en)

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CN105858722B (en) * 2016-06-14 2018-06-12 福建中烟工业有限责任公司 A kind of N- adulterates TiO2Preparation method
CN115805094A (en) * 2022-12-01 2023-03-17 珠海市派特尔科技股份有限公司 Antibacterial agent with photocatalytic degradation and antibacterial properties and preparation method thereof

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20000075055A (en) * 1999-05-28 2000-12-15 유석범 Method for production of titanium dioxide ultrafine powders with rutile phase from titanium sulfate
CN1363521A (en) * 2001-01-09 2002-08-14 攀枝花市永禄科技开发有限责任公司 Process for preparing anatase crystal type nano TiO2
CN1712128A (en) * 2005-04-29 2005-12-28 北京科技大学 Production of nitrogen-doped anatase-type nanometer titanium dioxide

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JP4684480B2 (en) * 2001-07-18 2011-05-18 株式会社ナリス化粧品 Inorganic powder composition and cosmetics using the same
JP4210785B2 (en) * 2004-09-17 2009-01-21 テイカ株式会社 Method for producing transparent coating agent for optical element containing rutile type titanium oxide sol

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20000075055A (en) * 1999-05-28 2000-12-15 유석범 Method for production of titanium dioxide ultrafine powders with rutile phase from titanium sulfate
CN1363521A (en) * 2001-01-09 2002-08-14 攀枝花市永禄科技开发有限责任公司 Process for preparing anatase crystal type nano TiO2
CN1712128A (en) * 2005-04-29 2005-12-28 北京科技大学 Production of nitrogen-doped anatase-type nanometer titanium dioxide

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
"Band structure and visible light photocatalytic activity of multi-type nitrogen doped TiO2 nanoparticles prepared by thermal decomposition";Fan Dong et al.;《Journal of Hazardous Materials》;20080527;第162卷;第763-770页 *
"可见光下氮掺杂二氧化钛对有机污染物的降解动力学研究";秦好丽等;《生态环境学报》;20100331;第19卷(第3期);第513-517页 *
"氮掺杂TiO2光催化剂的制备研究进展";孟祥东等;《淮北煤炭师范学院学报(自然科学版)》;20090630;第30卷(第2期);第24-27页 *
"氮掺杂锐钛矿TiO2光催化剂的制备和表征";程萍等;《武汉理工大学学报》;20071031;第29卷(第10期);第165-168、172页 *

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