WO2022059512A1 - 酸化チタン粒子、その分散液、光触媒薄膜、光触媒薄膜を表面に有する部材及び酸化チタン粒子分散液の製造方法 - Google Patents

酸化チタン粒子、その分散液、光触媒薄膜、光触媒薄膜を表面に有する部材及び酸化チタン粒子分散液の製造方法 Download PDF

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Publication number
WO2022059512A1
WO2022059512A1 PCT/JP2021/032391 JP2021032391W WO2022059512A1 WO 2022059512 A1 WO2022059512 A1 WO 2022059512A1 JP 2021032391 W JP2021032391 W JP 2021032391W WO 2022059512 A1 WO2022059512 A1 WO 2022059512A1
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Prior art keywords
titanium oxide
component
titanium
oxide particles
tin
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Ceased
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PCT/JP2021/032391
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English (en)
French (fr)
Japanese (ja)
Inventor
学 古舘
友博 井上
幹哉 樋上
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Shin Etsu Chemical Co Ltd
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Shin Etsu Chemical Co Ltd
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Priority to AU2021345135A priority Critical patent/AU2021345135A1/en
Priority to EP21869199.6A priority patent/EP4215273A4/en
Priority to US18/025,936 priority patent/US20230364586A1/en
Priority to JP2022550465A priority patent/JP7692673B2/ja
Priority to KR1020237012418A priority patent/KR20230069163A/ko
Priority to CN202180062828.8A priority patent/CN116056735B/zh
Publication of WO2022059512A1 publication Critical patent/WO2022059512A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2/00—Disinfection or sterilisation of materials or objects, in general; Accessories therefor
    • A61L2/02—Disinfection or sterilisation of materials or objects, in general; Accessories therefor using physical processes
    • A61L2/08—Radiation
    • A61L2/088—Radiation using photocatalysts or photosensitisers
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    • B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
    • B01J21/06—Silicon, titanium, zirconium or hafnium; Oxides or hydroxides thereof
    • B01J21/063—Titanium; Oxides or hydroxides thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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    • B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
    • B01J21/06—Silicon, titanium, zirconium or hafnium; Oxides or hydroxides thereof
    • B01J21/08—Silica
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    • B01J23/14—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of germanium, tin or lead
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B01J23/16—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B01J23/16—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
    • B01J23/20—Vanadium, niobium or tantalum
    • B01J23/22—Vanadium
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    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B01J23/76—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
    • B01J23/835—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36 with germanium, tin or lead
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    • B01J2235/15—X-ray diffraction

Definitions

  • the present invention relates to titanium oxide particles capable of obtaining higher photocatalytic activity, particularly visible light activity, a dispersion liquid thereof, a photocatalytic thin film formed by using the dispersion liquid, a member having a photocatalytic thin film on the surface, and titanium oxide. It is an object of the present invention to provide a method for producing a particle dispersion.
  • the present invention provides a titanium oxide particle shown below, a dispersion liquid thereof, a photocatalyst thin film formed by using the dispersion liquid, a member having a photocatalyst thin film on the surface, and a method for producing the titanium oxide particle dispersion liquid. .. [1] 1) The tin component and the transition metal component that enhances visible light activity are dissolved in solid solution. 2) Titanium oxide particles to which iron component, titanium component and silicon component are attached to the surface.
  • the molar ratio of the iron component to titanium oxide (TIO 2 / Fe) is 10 to 10,000
  • the molar ratio of the titanium component to titanium oxide (TIO 2 / Ti) is 10 to 10,000
  • the silicon component is the silicon component.
  • a solid solution is a phase in which an atom at a lattice point of one crystal phase is replaced with another atom or another atom is inserted in a lattice gap, that is, another crystal phase. It means that it has a mixed phase in which the substance of the above is considered to be dissolved, and it means that it is a uniform phase as a crystal phase.
  • a solid solution in which a solvent atom at a lattice point is replaced with a solute atom is referred to as a substituted solid solution, and a solution in which a solute atom is contained in a lattice gap is referred to as an intrusive solid solution. In the present specification, both of them are referred to.
  • oxides SnO, SnO 2
  • chlorides SnCl 2 , SnCl 4
  • sulfates SnSO 4
  • oxoacids Na 2 SnO 3 , K 2 SnO 3
  • the vanadium component may be derived from the vanadium compound, for example, vanadium metal alone (V), oxide (VO, V 2 ). O 3 , VO 2 , V 2 O 5 ), hydroxides, chlorides (VCl 5 ), oxychlorides (VOCl 3 ), nitrates, sulfates, oxysulfates (VOSO 4 ), halogens other than chlorides (VOSO 4) Br, I) compounds, oxorates (Na 3 VO 4 , K 3 VO 4 , KVO 3 ), complex compounds and the like can be mentioned, and one or a combination of two or more of these may be used.
  • vanadium metal alone V
  • oxide VO, V 2
  • hydroxides chlorides (VCl 5 ), oxychlorides (VOCl 3 ), nitrates, sulfates, oxysulfates (VOSO 4 ), halogens other than chlor
  • the crystal phase of titanium oxide particles is obtained by powder X-ray diffraction of titanium oxide particle powder recovered by drying the obtained dispersion of titanium oxide particles at 105 ° C. for 3 hours (commodity). It was identified by measuring the name "desktop X-ray diffractometer D2 PHASER", Bruker AXS Co., Ltd.
  • Preparation Example 1-7 ⁇ Preparation of titanium oxide particle dispersion liquid in which molybdenum is dissolved> A dispersion liquid (titanium oxide concentration 1.2% by mass) of titanium oxide particles (1G) in which molybdenum was dissolved was obtained in the same manner as in Preparation Example 1-1 except that tin (IV) chloride was not added. rice field. When powder X-ray diffraction measurement of titanium oxide particles (1G) was performed, it was found that the observed peak was only that of anatase-type titanium oxide, and molybdenum was solidly dissolved in titanium oxide.
  • Titanium oxide particle dispersion (E-4) with silicon compound (silica) binder (coloidal silica, trade name: Snowtex 20, manufactured by Nissan Chemical Industry Co., Ltd.) in TIM 2 / SiO 2 (mass ratio)
  • the mixture was added so as to be 1.5 and mixed at 25 ° C. for 10 minutes with a stirrer to obtain a titanium oxide particle dispersion (E-6) containing a binder.
  • Example 4 As can be seen from the results of Example 4 and Comparative Examples 7 and 8, when the iron component and the titanium component are added to the titanium oxide particles (1D), the titanium oxide particles, the iron component and the titanium component are added by adding the iron component together with the silicon component. It was found that aggregation and precipitation can be suppressed.
  • the titanium oxide particle dispersion liquid of the present invention is useful for producing a photocatalytic thin film by applying it to various members made of an inorganic substance such as glass or metal and an organic substance such as resin, and is particularly useful on various members. It is useful for producing a transparent photocatalytic thin film.

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  • Chemical & Material Sciences (AREA)
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  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
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  • Inorganic Compounds Of Heavy Metals (AREA)
PCT/JP2021/032391 2020-09-15 2021-09-03 酸化チタン粒子、その分散液、光触媒薄膜、光触媒薄膜を表面に有する部材及び酸化チタン粒子分散液の製造方法 Ceased WO2022059512A1 (ja)

Priority Applications (6)

Application Number Priority Date Filing Date Title
AU2021345135A AU2021345135A1 (en) 2020-09-15 2021-09-03 Titanium oxide particles, dispersion liquid of same, photocatalyst thin film, member having photocatalyst thin film on surface, and method for producing dispersion liquid of titanium oxide particles
EP21869199.6A EP4215273A4 (en) 2020-09-15 2021-09-03 TITANIUM OXIDE PARTICLES, DISPERSION LIQUID THEREOF, PHOTOCATALYST THIN FILM, MEMBER HAVING PHOTOCATALYST THIN LAYER ON SURFACE, AND METHOD FOR PRODUCING TITANIUM OXIDE PARTICLE DISPERSION LIQUID
US18/025,936 US20230364586A1 (en) 2020-09-15 2021-09-03 Titanium oxide particles, dispersion liquid thereof, photocatalyst thin film, member having photocatalyst thin film on surface, and method for producing titanium oxide particle dispersion liquid
JP2022550465A JP7692673B2 (ja) 2020-09-15 2021-09-03 酸化チタン粒子、その分散液、光触媒薄膜、光触媒薄膜を表面に有する部材及び酸化チタン粒子分散液の製造方法
KR1020237012418A KR20230069163A (ko) 2020-09-15 2021-09-03 산화티타늄 입자, 그 분산액, 광촉매 박막, 광촉매 박막을 표면에 갖는 부재 및 산화티타늄 입자 분산액의 제조 방법
CN202180062828.8A CN116056735B (zh) 2020-09-15 2021-09-03 氧化钛粒子、其分散液、光催化剂薄膜、表面具有光催化剂薄膜的构件和氧化钛粒子分散液的制造方法

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JP2020-154252 2020-09-15
JP2020154252 2020-09-15

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