JPH11290697A - Photocatalyst titanium oxide, photocatalyst deodorizing element, photocatalytic deodorizing and environment cleaning device - Google Patents
Photocatalyst titanium oxide, photocatalyst deodorizing element, photocatalytic deodorizing and environment cleaning deviceInfo
- Publication number
- JPH11290697A JPH11290697A JP10104463A JP10446398A JPH11290697A JP H11290697 A JPH11290697 A JP H11290697A JP 10104463 A JP10104463 A JP 10104463A JP 10446398 A JP10446398 A JP 10446398A JP H11290697 A JPH11290697 A JP H11290697A
- Authority
- JP
- Japan
- Prior art keywords
- titanium oxide
- oxide
- light
- metal
- photocatalyst
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 title claims abstract description 56
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 title claims abstract description 56
- 230000001699 photocatalysis Effects 0.000 title claims description 8
- 239000011941 photocatalyst Substances 0.000 title claims description 7
- 230000001877 deodorizing effect Effects 0.000 title claims description 6
- 238000004140 cleaning Methods 0.000 title 1
- 229910052723 transition metal Inorganic materials 0.000 claims abstract description 23
- 150000003624 transition metals Chemical class 0.000 claims abstract description 15
- 229910052751 metal Inorganic materials 0.000 claims abstract description 13
- 239000002184 metal Substances 0.000 claims abstract description 12
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 8
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 8
- 230000007613 environmental effect Effects 0.000 claims description 7
- 238000000746 purification Methods 0.000 claims description 7
- 229910021536 Zeolite Inorganic materials 0.000 claims description 6
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims description 6
- 239000010457 zeolite Substances 0.000 claims description 6
- 239000003463 adsorbent Substances 0.000 claims description 5
- 239000011230 binding agent Substances 0.000 claims description 5
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 4
- 229910002027 silica gel Inorganic materials 0.000 claims description 4
- 239000000741 silica gel Substances 0.000 claims description 4
- 229910052814 silicon oxide Inorganic materials 0.000 claims description 4
- 239000002781 deodorant agent Substances 0.000 claims description 3
- 229910044991 metal oxide Inorganic materials 0.000 claims description 3
- 150000004706 metal oxides Chemical class 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 239000003344 environmental pollutant Substances 0.000 abstract description 21
- 230000000844 anti-bacterial effect Effects 0.000 abstract description 18
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 abstract description 6
- VXUYXOFXAQZZMF-UHFFFAOYSA-N titanium(IV) isopropoxide Chemical compound CC(C)O[Ti](OC(C)C)(OC(C)C)OC(C)C VXUYXOFXAQZZMF-UHFFFAOYSA-N 0.000 abstract description 6
- 239000002131 composite material Substances 0.000 abstract description 4
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 abstract description 3
- 229910052719 titanium Inorganic materials 0.000 abstract description 3
- 239000010936 titanium Substances 0.000 abstract description 3
- 238000006864 oxidative decomposition reaction Methods 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 2
- 231100000719 pollutant Toxicity 0.000 abstract 2
- 230000007704 transition Effects 0.000 abstract 2
- 230000003301 hydrolyzing effect Effects 0.000 abstract 1
- 150000002739 metals Chemical class 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 150000003839 salts Chemical class 0.000 abstract 1
- 235000019645 odor Nutrition 0.000 description 19
- 230000000694 effects Effects 0.000 description 8
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- 230000003213 activating effect Effects 0.000 description 4
- 239000000919 ceramic Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 229910052804 chromium Inorganic materials 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000000499 gel Substances 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 230000001678 irradiating effect Effects 0.000 description 2
- 229910052749 magnesium Inorganic materials 0.000 description 2
- 229910052748 manganese Inorganic materials 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910021645 metal ion Inorganic materials 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- 150000005324 oxide salts Chemical class 0.000 description 2
- 238000013032 photocatalytic reaction Methods 0.000 description 2
- 229910052697 platinum Inorganic materials 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 2
- 229910052709 silver Inorganic materials 0.000 description 2
- 229910000314 transition metal oxide Inorganic materials 0.000 description 2
- 229910052720 vanadium Inorganic materials 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 238000004887 air purification Methods 0.000 description 1
- 150000004703 alkoxides Chemical class 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 230000003373 anti-fouling effect Effects 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 238000000975 co-precipitation Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 229910052878 cordierite Inorganic materials 0.000 description 1
- 238000004332 deodorization Methods 0.000 description 1
- JSKIRARMQDRGJZ-UHFFFAOYSA-N dimagnesium dioxido-bis[(1-oxido-3-oxo-2,4,6,8,9-pentaoxa-1,3-disila-5,7-dialuminabicyclo[3.3.1]nonan-7-yl)oxy]silane Chemical compound [Mg++].[Mg++].[O-][Si]([O-])(O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2)O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2 JSKIRARMQDRGJZ-UHFFFAOYSA-N 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229920000609 methyl cellulose Polymers 0.000 description 1
- 239000001923 methylcellulose Substances 0.000 description 1
- 235000010981 methylcellulose Nutrition 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000012266 salt solution Substances 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- -1 transition metal salt Chemical class 0.000 description 1
Landscapes
- Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Catalysts (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、空調および産業分
野に使用される空気清浄、環境浄化技術に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air purification and environmental purification technique used in the air conditioning and industrial fields.
【０００２】[0002]
【従来の技術】酸化チタンによる光触媒反応は脱臭、防
汚、環境浄化技術への応用研究が活発に行われている。
しかし従来の酸化チタン光触媒では３８０ｎｍ以下の紫
外光では作用するが、約４００ｎｍ〜８００ｎｍの可視
光では作用しなかった。このため太陽光や通常蛍光灯で
は含まれる紫外光が数％以下であるために十分な効果を
得ることは困難であった。またこの欠点を改良した酸化
チタンとしては、特開平９−２６２４８２号公報に記載
されたものが知られている。2. Description of the Related Art Photocatalytic reactions using titanium oxide have been actively studied for application to deodorizing, antifouling, and environmental purification technologies.
However, the conventional titanium oxide photocatalyst works with ultraviolet light of 380 nm or less, but does not work with visible light of about 400 nm to 800 nm. For this reason, it was difficult to obtain a sufficient effect because the amount of ultraviolet light contained in sunlight and ordinary fluorescent lamps was several percent or less. Further, as a titanium oxide in which this disadvantage is improved, one described in JP-A-9-262482 is known.
【０００３】Ｃｒ、Ｖ、Ｃｕ、Ｆｅ、Ｍｇ、Ａｇ、Ｐ
ｄ、Ｎｉ、ＭｎおよびＰｔからなる群から選択される１
種以上の金属のイオンを３０ＫｅＶ以上の高エネルギー
に加速して酸化チタンに照射し、１×１０１５イオン／
ｇ−酸化チタン以上の割合で酸化チタンの内部に含有さ
せることにより可視光も吸収できるようにしている。[0003] Cr, V, Cu, Fe, Mg, Ag, P
1 selected from the group consisting of d, Ni, Mn and Pt
More than one kind of metal ions are accelerated to a high energy of 30 KeV or more and irradiated to titanium oxide, and 1 × 10 15 ions /
Visible light can also be absorbed by containing g-titanium oxide or more in the interior of the titanium oxide.
【０００４】[0004]
【発明が解決しようとする課題】このような従来の光触
媒酸化チタンでは、機器組み込みで使用する場合は上記
したように太陽光や通常蛍光灯では光触媒反応活性が低
いため、紫外線ランプを光源として使用する必要があ
り、光触媒酸化チタンは半永久的に使用可能でも紫外線
ランプを交換する必要があった。また紫外線ランプは通
常の蛍光灯に比べて寿命が著しく短いため頻繁に交換す
る必要があった。In such a conventional titanium oxide photocatalyst, when it is used in a built-in device, since the photocatalytic reaction activity is low in sunlight or a normal fluorescent lamp as described above, an ultraviolet lamp is used as a light source. Therefore, even if the titanium oxide photocatalyst can be used semi-permanently, it is necessary to replace the ultraviolet lamp. In addition, the ultraviolet lamp has a remarkably short life as compared with a normal fluorescent lamp, and therefore has to be frequently replaced.
【０００５】またＣｒ、Ｖ、Ｃｕ、Ｆｅ、Ｍｇ、Ａｇ、
Ｐｄ、Ｎｉ、ＭｎおよびＰｔからなる群から選択される
１種以上の金属のイオンを３０ＫｅＶ以上の高エネルギ
ーに加速して酸化チタンに照射し、１×１０１５イオン
／ｇ−酸化チタン以上の割合で酸化チタンの内部に含有
させることにより可視光も吸収できるようにした酸化チ
タンは装置コストがかかることや、大量生産には不向き
であるという問題が有った。Further, Cr, V, Cu, Fe, Mg, Ag,
At least one metal ion selected from the group consisting of Pd, Ni, Mn, and Pt is accelerated to a high energy of 30 KeV or more and irradiated to the titanium oxide, and at a rate of 1 × 10 15 ions / g-titanium oxide or more. Titanium oxide which is made to absorb visible light by being contained in titanium oxide has a problem that it requires a high device cost and is not suitable for mass production.
【０００６】本発明はこのような従来の課題を解決する
ものであり、４００ｎｍ〜８００ｎｍの波長の可視光領
域の光を吸収して活性化し、悪臭や環境汚染物質を酸化
分解し、かつ抗菌作用も有する酸化チタンを提供するこ
とを目的としている。The present invention has been made to solve the above-mentioned conventional problems, and absorbs and activates light in a visible light region having a wavelength of 400 nm to 800 nm, oxidizes and decomposes odors and environmental pollutants, and has an antibacterial effect. It is an object to provide a titanium oxide which also has.
【０００７】また、４００ｎｍ〜８００ｎｍの波長の可
視光領域の光を吸収して活性化するだけでなく、１００
℃〜３００℃の熱エネルギーによっても悪臭や環境汚染
物質を酸化分解し、かつ抗菌作用も有する酸化チタンを
提供することを目的としている。[0007] In addition to absorbing and activating light in the visible light region having a wavelength of 400 nm to 800 nm,
It is an object of the present invention to provide titanium oxide which oxidizes and decomposes offensive odors and environmental pollutants even by heat energy of 300C to 300C and also has an antibacterial action.
【０００８】また、すでに半導体分野において実用化さ
れている簡易な方法で４００ｎｍ〜８００ｎｍの波長の
可視光領域の光を吸収して活性化し、悪臭や環境汚染物
質を酸化分解し、かつ抗菌作用も有する酸化チタンを提
供することを目的としている。[0008] In a simple method already used in the field of semiconductors, light in the visible light region having a wavelength of 400 nm to 800 nm is absorbed and activated, and odors and environmental pollutants are oxidized and decomposed, and antibacterial action is also exhibited. It is intended to provide a titanium oxide having the same.
【０００９】また、効率的に悪臭、環境汚染物質を吸着
除去し、４００ｎｍ〜８００ｎｍの波長の可視光領域の
光を吸収して活性化し、悪臭や環境汚染物質を酸化分解
し、かつ抗菌作用も有する酸化チタンを提供することを
目的としている。Further, it efficiently absorbs and removes odors and environmental pollutants, absorbs and activates light in the visible light region having a wavelength of 400 nm to 800 nm, oxidizes and decomposes odors and environmental pollutants, and has an antibacterial effect. It is intended to provide a titanium oxide having the same.
【００１０】また、ブラックライト等の特殊な光源を使
用することなく悪臭や環境汚染物質を酸化分解し、かつ
抗菌作用も有する空気、環境浄化機を提供することを目
的としている。It is another object of the present invention to provide an air / environmental purifier that oxidizes and decomposes offensive odors and environmental pollutants without using a special light source such as a black light and has an antibacterial action.
【００１１】[0011]
【課題を解決するための手段】本発明の酸化チタンは上
記目的を達成するために、遷移金属元素群から選択され
る少なくとも１種以上の金属をドーピングしたものであ
る。In order to achieve the above object, the titanium oxide of the present invention is obtained by doping at least one metal selected from the group consisting of transition metal elements.
【００１２】本発明によれば、遷移金属元素群から選択
される少なくとも１種以上の金属をドーピングすること
で酸化チタンのバンドギャップを小さくすることで４０
０ｎｍ〜８００ｎｍの波長の可視光領域の光を吸収して
活性化し、悪臭や環境汚染物質を酸化分解し、かつ抗菌
作用も有する酸化チタンが得られる。According to the present invention, the band gap of titanium oxide is reduced by doping at least one metal selected from the group consisting of transition metal elements.
Titanium oxide is obtained which absorbs and activates light in the visible light region having a wavelength of 0 nm to 800 nm, oxidizes and decomposes odors and environmental pollutants, and also has an antibacterial action.
【００１３】また、他の手段は、遷移金属元素群から選
択される少なくとも１種以上の金属酸化物を複合酸化物
化したものである。Another means is a compound oxide of at least one or more metal oxides selected from the group of transition metal elements.
【００１４】本発明によれば、４００ｎｍ〜８００ｎｍ
の波長の可視光領域の光を吸収して活性化するだけでな
く、１００℃〜３００℃の熱エネルギーによっても悪臭
や環境汚染物質を酸化分解し、かつ抗菌作用も有する酸
化チタンが得られる。According to the present invention, 400 nm to 800 nm
In addition to absorbing and activating light in the visible light region having a wavelength of, titanium oxide having oxidative decomposition of odors and environmental pollutants by heat energy of 100 ° C. to 300 ° C. and also having an antibacterial action can be obtained.
【００１５】また、他の手段は酸化チタンにプラズマを
照射することにより遷移金属をドーピングしたものであ
る。Another means is to dope a transition metal by irradiating plasma to titanium oxide.
【００１６】本発明によれば簡易な方法で４００ｎｍ〜
８００ｎｍの波長の可視光領域の光を吸収して活性化
し、悪臭や環境汚染物質を酸化分解し、かつ抗菌作用も
有する酸化チタンが得られる。According to the present invention, 400 nm to 400 nm
Titanium oxide, which absorbs and activates light in the visible light region with a wavelength of 800 nm, oxidizes and decomposes odors and environmental pollutants, and also has an antibacterial effect is obtained.
【００１７】また、他の手段はゼオライト、活性炭、シ
リカゲル、酸化アルミニウム、酸化珪素から選択される
少なくとも１種以上の吸着剤と結合材と光触媒酸化チタ
ンとを混合成形したものである。Another means is a method in which at least one or more adsorbents selected from zeolite, activated carbon, silica gel, aluminum oxide and silicon oxide, a binder and a photocatalytic titanium oxide are mixed and molded.
【００１８】本発明によれば吸着剤の作用により効率的
に悪臭、環境汚染物質を吸着除去し、かつ４００ｎｍ〜
８００ｎｍの波長の可視光領域の光を吸収して活性化
し、悪臭や環境汚染物質を酸化分解し、かつ抗菌作用も
有する酸化チタン脱臭体が得られる。According to the present invention, the odor and the environmental pollutants are efficiently removed by the action of the adsorbent,
A titanium dioxide deodorant is obtained which absorbs and activates light in the visible light region at a wavelength of 800 nm, oxidizes and decomposes odors and environmental pollutants, and also has an antibacterial action.
【００１９】また、他の手段は可視光領域の光を吸収し
て活性化し、悪臭や環境汚染物質を酸化分解し、かつ抗
菌作用も有する酸化チタンを脱臭、環境浄化材として搭
載した脱臭、環境浄化装置である。Another means is to absorb and activate light in the visible light range, to oxidize and decompose odors and environmental pollutants, and to deodorize titanium oxide having an antibacterial action, to carry out deodorization by mounting as an environmental purification material, It is a purification device.
【００２０】[0020]
【発明の実施の形態】本発明は、バンドギャップ以上の
エネルギーを持つ４００ｎｍ以下の波長の光を吸収する
ことにより電子と生孔を生成し、悪臭や環境汚染物質を
酸化分解し、かつ抗菌作用を持つ光触媒酸化チタンにお
いて遷移金属元素群から選択される少なくとも1種以上
の金属をドーピングしたもので４００ｎｍ〜８００ｎｍ
の可視光によっても悪臭、環境汚染物質を酸化分解する
ことができ、かつ抗菌作用も持つという作用を有する。BEST MODE FOR CARRYING OUT THE INVENTION The present invention generates electrons and pores by absorbing light having a wavelength of 400 nm or less having energy greater than the band gap, oxidizes and decomposes odors and environmental pollutants, and has an antibacterial effect. 400 nm to 800 nm in which at least one metal selected from the group of transition metal elements is doped in a photocatalytic titanium oxide having
Has the effect of being capable of oxidatively decomposing odors and environmental pollutants by the visible light, and also having an antibacterial effect.
【００２１】また、遷移金属元素群から選択される少な
くとも１種以上の金属酸化物と複合酸化物化した酸化チ
タンで、光エネルギーだけでなく熱エネルギーによって
も悪臭、環境汚染物質を酸化分解することができ、かつ
抗菌作用も持つという作用を有する。In addition, the titanium oxide compounded with at least one or more metal oxides selected from the group of transition metal elements makes it possible to oxidize and decompose odors and environmental pollutants not only by light energy but also by heat energy. It has the effect of being able to have an antibacterial effect.
【００２２】また、半導体分野において実用化されてい
る簡易な方法のプラズマ照射をすることにより遷移金属
をドーピングした酸化チタンで４００ｎｍ〜８００ｎｍ
の波長の可視光領域の光を吸収して活性化し、悪臭や環
境汚染物質を酸化分解し、かつ抗菌作用も有するという
作用を有する。Further, by performing plasma irradiation by a simple method practically used in the field of semiconductors, titanium oxide doped with a transition metal can be used to form a titanium oxide of 400 nm to 800 nm.
It has the effect of absorbing and activating light in the visible light region having a wavelength of, oxidizing and decomposing odors and environmental pollutants, and also having an antibacterial effect.
【００２３】また、ゼオライト、活性炭、シリカゲル、
酸化アルミニウム、酸化珪素から選択される少なくとも
１種以上の吸着剤と結合材と光触媒酸化チタンとを混合
成形することで効率的に悪臭、環境汚染物質を吸着除去
し、かつ４００ｎｍ〜８００ｎｍの波長の可視光領域の
光を吸収して活性化し、悪臭や環境汚染物質を酸化分解
し、かつ抗菌作用も有するという作用を有する。Also, zeolite, activated carbon, silica gel,
Aluminum oxide, at least one or more adsorbents selected from silicon oxide, a binder and a photocatalytic titanium oxide are mixed and molded to efficiently adsorb and remove odors and environmental pollutants, and have a wavelength of 400 nm to 800 nm. It has the effect of absorbing and activating light in the visible light range, oxidizing and decomposing odors and environmental pollutants, and also having an antibacterial effect.
【００２４】以下、本発明の実施の形態について説明す
る。 （実施の形態１）本発明の一実施の形態について説明す
る。Hereinafter, embodiments of the present invention will be described. (Embodiment 1) An embodiment of the present invention will be described.
【００２５】チタンに対し金属量で０．１〜１００ｗｔ
％となるような量の遷移金属の塩をエチレングリコール
に溶解させた後チタンテトライソプロポキシドと混合
し、その後水を加えて加水分解させることにより酸化チ
タンに均一に遷移金属を分散させた酸化チタンゲルを得
る。その後に得られたゲルを焼成する。[0025] 0.1 to 100 wt.
% Of a transition metal salt is dissolved in ethylene glycol, mixed with titanium tetraisopropoxide, and then water is added to hydrolyze the titanium oxide to uniformly disperse the transition metal in titanium oxide. Obtain titanium gel. Thereafter, the obtained gel is fired.
【００２６】なお、本実施の形態ではチタン原料にチタ
ンテトライソプロポキシドを用いたが、金属アルコキシ
ドであれば何でも良く、同様の効果が期待できる。In this embodiment, titanium tetraisopropoxide is used as a titanium raw material, but any metal alkoxide may be used, and similar effects can be expected.
【００２７】（実施の形態２）実施の形態１と同様に酸
化チタンを調製し、溶媒中に分散した後、遷移金属酸化
物塩溶液と混合し、水酸化ナトリウムを加えて共沈させ
る。得られた沈殿物を分離し、焼成することで酸化チタ
ンと遷移金属の複合酸化物を得ることが可能となる。(Embodiment 2) Titanium oxide is prepared and dispersed in a solvent in the same manner as in Embodiment 1, mixed with a transition metal oxide salt solution, and coprecipitated by adding sodium hydroxide. By separating and firing the obtained precipitate, a composite oxide of titanium oxide and a transition metal can be obtained.
【００２８】なお、本実施の形態では水酸化ナトリウム
を用いたが遷移金属酸化物塩水溶液と共沈をおこすもの
であれば同様の効果が期待できる。Although sodium hydroxide is used in the present embodiment, the same effect can be expected as long as coprecipitation occurs with an aqueous solution of a transition metal oxide salt.
【００２９】（実施の形態３）真空槽内に遷移金属を含
む固体を金属プラズマ源として固定し、同一空間内に酸
化チタンを保持し、その後電圧を印加し、プラズマを発
生させて金属プラズマを酸化チタンに照射することで遷
移金属をドーピングした酸化チタンを得る。なお、遷移
金属をドーピングする酸化チタンの形態は粉末、固体
状、膜状等何でも良い。(Embodiment 3) A solid containing a transition metal is fixed as a metal plasma source in a vacuum chamber, titanium oxide is held in the same space, and then a voltage is applied to generate plasma to generate metal plasma. By irradiating the titanium oxide, a titanium oxide doped with a transition metal is obtained. The form of the titanium oxide doped with the transition metal may be any form such as a powder, a solid, and a film.
【００３０】（実施の形態４）実施の形態１、２、３と
同様に酸化チタンを調製し、この酸化チタンとペンタシ
ル型ゼオライト、シリカゾルを混合して焼成することで
吸着作用も優れた脱臭体を得る。(Embodiment 4) Titanium oxide is prepared in the same manner as in Embodiments 1, 2 and 3, and this titanium oxide is mixed with pentasil-type zeolite and silica sol and calcined, whereby a deodorant having excellent adsorption action is obtained. Get.
【００３１】なお、本実施の形態では吸着剤としてペン
タシル型ゼオライトを用いたが他のゼオライト、活性
炭、シリカゲル、酸化アルミニウム、酸化珪素等の吸着
作用を持つ物質なら何でもよい。In this embodiment, a pentasil-type zeolite is used as an adsorbent, but any other substance having an adsorbing action, such as zeolite, activated carbon, silica gel, aluminum oxide, silicon oxide, etc., may be used.
【００３２】なお、本実施の形態では結合材としてシリ
カゾルを用いたがアルミナゾル、メチルセルロース等の
焼結作用を有するバインダーであれば何でもよい。In the present embodiment, silica sol is used as the binder, but any binder having a sintering action, such as alumina sol or methyl cellulose, may be used.
【００３３】（実施の形態５）実施の形態１、２、３、
４と同様に酸化チタンを調製し、セラミックハニカムに
担持する。この脱臭、環境浄化体を空気清浄器に搭載
し、脱臭、環境浄化装置とする。(Embodiment 5) Embodiments 1, 2, 3,
Titanium oxide is prepared in the same manner as in No. 4, and supported on the ceramic honeycomb. This deodorizing and environmental purification body is mounted on an air purifier to form a deodorizing and environmental purification device.
【００３４】なお、本実施の形態では酸化チタンをセラ
ミックハニカムに担持したが、コージェライトハニカ
ム、セラミックペーパー等何でもよい。In this embodiment, the titanium oxide is supported on the ceramic honeycomb, but any material such as cordierite honeycomb and ceramic paper may be used.
【００３５】[0035]
【発明の効果】上記のように、酸化チタンに遷移金属を
ドーピングすることで可視光領域も吸収し、悪臭や環境
汚染物質を酸化分解し、かつ抗菌作用も有する酸化チタ
ンを提供することができる。As described above, by doping the titanium oxide with a transition metal, it is possible to provide a titanium oxide that absorbs the visible light region, oxidizes and decomposes odors and environmental pollutants, and also has an antibacterial effect. .
【００３６】すなわち、遷移金属をドーピングした酸化
チタンはバンドギャップが小さくなり４００ｎｍ〜８０
０ｎｍの波長の光でも励起され、光触媒活性を持つよう
になる。That is, titanium oxide doped with a transition metal has a small band gap,
Even light having a wavelength of 0 nm is excited and has photocatalytic activity.
Claims (5)
も1種以上の金属をドーピングした光触媒酸化チタン。1. Photocatalytic titanium oxide doped with at least one metal selected from the group of transition metal elements.
も１種以上の金属酸化物と複合酸化物化した請求項１記
載の光触媒酸化チタン。2. The titanium oxide photocatalyst according to claim 1, wherein said titanium oxide is formed into a complex oxide with at least one metal oxide selected from the group of transition metal elements.
移金属がドーピングされる酸化チタンとを保持する工程
と、前記真空槽内の内部に金属プラズマを発生させ、発
生した前記金属プラズマを照射することにより前記遷移
金属をドーピングした請求項1または２記載の光触媒酸
化チタン。3. A step of holding a solid containing a transition metal and a titanium oxide to which the transition metal is doped in a vacuum chamber, and generating a metal plasma inside the vacuum chamber to generate the metal plasma. 3. The photocatalytic titanium oxide according to claim 1, wherein the transition metal is doped by irradiation.
アルミニウム、酸化珪素から選択される少なくとも１種
以上の吸着剤と結合材と請求項１、２または３記載の光
触媒酸化チタンとを混合成形した脱臭体。4. A deodorant obtained by mixing and forming at least one kind of adsorbent selected from zeolite, activated carbon, silica gel, aluminum oxide and silicon oxide, a binder and the photocatalyst titanium oxide according to claim 1, 2 or 3. .
酸化チタンを搭載した脱臭、環境浄化装置。5. A deodorizing and environmental purification device equipped with the photocatalytic titanium oxide according to claim 1, 2, 3 or 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10104463A JPH11290697A (en) | 1998-04-15 | 1998-04-15 | Photocatalyst titanium oxide, photocatalyst deodorizing element, photocatalytic deodorizing and environment cleaning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10104463A JPH11290697A (en) | 1998-04-15 | 1998-04-15 | Photocatalyst titanium oxide, photocatalyst deodorizing element, photocatalytic deodorizing and environment cleaning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH11290697A true JPH11290697A (en) | 1999-10-26 |
Family
ID=14381293
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10104463A Pending JPH11290697A (en) | 1998-04-15 | 1998-04-15 | Photocatalyst titanium oxide, photocatalyst deodorizing element, photocatalytic deodorizing and environment cleaning device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH11290697A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000010706A1 (en) * | 1998-08-21 | 2000-03-02 | Ecodevice Laboratory Co., Ltd. | Visible radiation type photocatalyst and production method thereof |
| KR100436836B1 (en) * | 2001-06-12 | 2004-06-26 | 대한민국 | Mothod for preparing titanate powder using ethylene glycol |
| KR100440785B1 (en) * | 2001-10-24 | 2004-07-21 | 오승훈 | Photocatalyst optical thin films activated in the visible light and their preparations |
| JP2008538305A (en) * | 2005-04-11 | 2008-10-23 | サン−ゴバン グラス フランス | Bactericidal substrate |
| US7666385B2 (en) | 2004-02-20 | 2010-02-23 | Industrial Technology Research Institute | Nanostructured zinc oxide photocatalyst for visible light and manufacturing method of the same |
| JP4626099B2 (en) * | 2000-07-17 | 2011-02-02 | 株式会社豊田中央研究所 | Photocatalyst |
| JP4663065B2 (en) * | 2000-06-09 | 2011-03-30 | 日本曹達株式会社 | Photocatalyst coating agent and photocatalyst carrying structure |
| KR101046314B1 (en) | 2011-02-14 | 2011-07-05 | (주)엔지텍 | Preparation method of anti-bacterial and deodorization adsorbents using nano-metal doped metal oxides catalyst powder and thereof anti-bacterial and deoderization adsorbents |
| JP2021087902A (en) * | 2019-12-02 | 2021-06-10 | 国立大学法人福島大学 | Visible light-responsive titanium oxide carrier material, decomposition method of organic substance, and production method of visible light-responsive titanium oxide carrier material |
| KR20220084906A (en) * | 2020-12-14 | 2022-06-21 | 공경배 | Complex Photocatalyst for Decomposition of Pollutants and Manufacturing Method thereof |
-
1998
- 1998-04-15 JP JP10104463A patent/JPH11290697A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000010706A1 (en) * | 1998-08-21 | 2000-03-02 | Ecodevice Laboratory Co., Ltd. | Visible radiation type photocatalyst and production method thereof |
| JP4663065B2 (en) * | 2000-06-09 | 2011-03-30 | 日本曹達株式会社 | Photocatalyst coating agent and photocatalyst carrying structure |
| JP4626099B2 (en) * | 2000-07-17 | 2011-02-02 | 株式会社豊田中央研究所 | Photocatalyst |
| KR100436836B1 (en) * | 2001-06-12 | 2004-06-26 | 대한민국 | Mothod for preparing titanate powder using ethylene glycol |
| KR100440785B1 (en) * | 2001-10-24 | 2004-07-21 | 오승훈 | Photocatalyst optical thin films activated in the visible light and their preparations |
| US7666385B2 (en) | 2004-02-20 | 2010-02-23 | Industrial Technology Research Institute | Nanostructured zinc oxide photocatalyst for visible light and manufacturing method of the same |
| JP2008538305A (en) * | 2005-04-11 | 2008-10-23 | サン−ゴバン グラス フランス | Bactericidal substrate |
| KR101046314B1 (en) | 2011-02-14 | 2011-07-05 | (주)엔지텍 | Preparation method of anti-bacterial and deodorization adsorbents using nano-metal doped metal oxides catalyst powder and thereof anti-bacterial and deoderization adsorbents |
| JP2021087902A (en) * | 2019-12-02 | 2021-06-10 | 国立大学法人福島大学 | Visible light-responsive titanium oxide carrier material, decomposition method of organic substance, and production method of visible light-responsive titanium oxide carrier material |
| KR20220084906A (en) * | 2020-12-14 | 2022-06-21 | 공경배 | Complex Photocatalyst for Decomposition of Pollutants and Manufacturing Method thereof |
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