JP3279755B2 - Photocatalyst and method for supporting photocatalyst - Google Patents
Photocatalyst and method for supporting photocatalystInfo
- Publication number
- JP3279755B2 JP3279755B2 JP20931793A JP20931793A JP3279755B2 JP 3279755 B2 JP3279755 B2 JP 3279755B2 JP 20931793 A JP20931793 A JP 20931793A JP 20931793 A JP20931793 A JP 20931793A JP 3279755 B2 JP3279755 B2 JP 3279755B2
- Authority
- JP
- Japan
- Prior art keywords
- photocatalyst
- titanium dioxide
- photocatalytic activity
- organic binder
- ultraviolet light
- 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.)
- Expired - Fee Related
Links
- 239000011941 photocatalyst Substances 0.000 title claims description 71
- 238000000034 method Methods 0.000 title claims description 15
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 56
- 239000011230 binding agent Substances 0.000 claims description 40
- 230000001699 photocatalysis Effects 0.000 claims description 34
- 239000004408 titanium dioxide Substances 0.000 claims description 28
- 239000002245 particle Substances 0.000 claims description 26
- 239000010954 inorganic particle Substances 0.000 claims description 11
- 238000005507 spraying Methods 0.000 claims description 7
- 239000011248 coating agent Substances 0.000 claims 1
- 238000000576 coating method Methods 0.000 claims 1
- 239000000428 dust Substances 0.000 description 8
- 239000000463 material Substances 0.000 description 6
- 238000000354 decomposition reaction Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 230000000903 blocking effect Effects 0.000 description 4
- 238000005245 sintering Methods 0.000 description 4
- 239000007921 spray Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000001678 irradiating effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 235000019353 potassium silicate Nutrition 0.000 description 2
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 2
- 239000005995 Aluminium silicate Substances 0.000 description 1
- 239000004113 Sepiolite Substances 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 1
- 229910021536 Zeolite Inorganic materials 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 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
- 235000012211 aluminium silicate Nutrition 0.000 description 1
- -1 aluminum silicates Chemical class 0.000 description 1
- 229960000892 attapulgite Drugs 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 1
- 239000000391 magnesium silicate Substances 0.000 description 1
- 235000012243 magnesium silicates Nutrition 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 229910052625 palygorskite Inorganic materials 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 229910052624 sepiolite Inorganic materials 0.000 description 1
- 235000019355 sepiolite Nutrition 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
- 239000010457 zeolite Substances 0.000 description 1
Landscapes
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Catalysts (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、汚れ付着物質、有害物
質等を分解、浄化、無害化、あるいは殺菌する光触媒体
および光触媒体の担持方法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a photocatalyst for decomposing, purifying, detoxifying or sterilizing substances adhering to dirt and harmful substances, and a method of supporting the photocatalyst.
【０００２】[0002]
【従来の技術】近年、光触媒体の使用、応用範囲が拡大
するにつれ、光触媒体はあらゆる物体表面に、光触媒機
能を損なうことなく、耐久性をもたせ、かつ作業性良く
担持させることが求められている。2. Description of the Related Art In recent years, as the use and application range of photocatalysts have been expanded, photocatalysts have been required to have durability and workability without impairing the photocatalyst function on any object surface. I have.
【０００３】従来、この種の光触媒体および光触媒体の
担持方法は、光触媒活性を持つ二酸化チタン粒子を光触
媒体として用い、水ガラス等の無機系バインダを物体表
面に塗布し、更にその上に光触媒体である二酸化チタン
粒子の粉体を吹き付け等で表面コーティング後、乾燥、
あるいは焼結等により担持する方法が一般的であった。Heretofore, this type of photocatalyst and a method for supporting the photocatalyst have been disclosed in which titanium dioxide particles having photocatalytic activity are used as a photocatalyst, an inorganic binder such as water glass is applied to the surface of the object, and then the photocatalyst is further coated thereon. After spraying the surface of titanium dioxide particles,
Alternatively, a method of carrying the material by sintering or the like has been common.
【０００４】上記構成において、光触媒体である光触媒
活性を持つ二酸化チタン粒子は無機系のバインダを介し
て物体表面に接着、コーティングされる。汚れ成分であ
る有機物が光触媒体表面に付着した際、波長が３００〜
４００ｎｍの近紫外光を照射すると、光触媒体である光
触媒活性を持つ二酸化チタンが励起し、汚れ成分である
有機物を分解、浄化することになる。[0004] In the above structure, titanium dioxide particles having photocatalytic activity as a photocatalyst are adhered and coated on the surface of an object via an inorganic binder. When the organic matter as a dirt component adheres to the surface of the photocatalyst, the wavelength is 300 to
Irradiation with near-ultraviolet light of 400 nm excites titanium dioxide having photocatalytic activity, which is a photocatalyst, to decompose and purify organic substances, which are dirt components.
【０００５】[0005]
【発明が解決しようとする課題】このような従来の光触
媒体および光触媒体の担持方法では、無機系バインダと
して水ガラスを用いた場合、相手材料とのなじみ性が問
題となり、水をはじき易いような塗装面、材料に対して
は事実上使用できないという問題がある。また吹き付け
工程が、無機系バインダの吹き付けおよびその後の光触
媒体の吹き付けと、２段工程の作業になるとともに、十
分な注意を払っても、光触媒体の吹き付け作業時に、光
触媒体表面に無機系バインダが付着、あるいは無機系バ
インダ中に、光触媒体である光触媒活性を持つ二酸化チ
タン粒子が埋没し、その部分の光触媒活性が損なわれ、
光触媒活性部分がまばらになるという問題があり、更に
無機系バインダのかわりに、有機系バインダを用いた場
合、波長が３００〜４００ｎｍの近紫外光を照射した光
触媒活性時に、光触媒体の有機系バインダが分解し、バ
インダとしての役目をなさなくなるという問題があっ
た。In such a conventional photocatalyst and a method for supporting the photocatalyst, when water glass is used as the inorganic binder, compatibility with a mating material becomes a problem, and water is easily repelled. There is a problem that it cannot be practically used for a painted surface or a material. In addition, the spraying step is a two-step operation of spraying the inorganic binder and the subsequent spraying of the photocatalyst, and the inorganic binder is applied to the surface of the photocatalyst during the spraying operation of the photocatalyst, even if sufficient care is taken. Adhered, or in the inorganic binder, the titanium dioxide particles having photocatalytic activity as a photocatalyst are buried, the photocatalytic activity of that part is impaired,
There is a problem that the photocatalytically active portion becomes sparse, and when an organic binder is used instead of the inorganic binder, the organic binder of the photocatalyst is activated when the photocatalyst is irradiated with near-ultraviolet light having a wavelength of 300 to 400 nm. Has been decomposed and no longer serves as a binder.
【０００６】本発明は上記課題を解決するもので、あら
ゆる物体表面に、吹き付け塗布ができ、光触媒性能を損
なうことなく、耐久性をもたせ、かつ作業性を良く担持
することができる光触媒体を提供することを第１の目的
とする。[0006] The present invention is intended to solve the above problems, rough
Spray coating can be applied to loose object surfaces, impairing photocatalytic performance
Without durable, has good durability and good workability
It is a first object of the present invention to provide a photocatalyst that can be used.
【０００７】第２の目的は、光触媒活性を持つ二酸化チ
タン粒子のみで構成し、あらゆる物体表面に、吹き付け
塗布ができ、光触媒性能を損なうことなく、耐久性をも
たせ、かつ作業性を良く担持することができる光触媒体
を提供することにある。[0007] The second object is to form only titanium dioxide particles having photocatalytic activity and spray them onto any object surface.
It can be applied and has durability without impairing the photocatalytic performance.
Photocatalyst body that can be loaded and has good workability
Is to provide.
【０００８】第３の目的は、ゴミ等が表面の有機系バイ
ンダに付着し、波長が３００〜４００ｎｍの近紫外光を
遮断、あるいは弱める前に、有機系バインダを分解し、
ゴミの付着を防止し、光触媒機能を使用可能ならしめる
光触媒体の担持方法を提供することにある。[0008] The third object is that dust or the like is formed on the surface of an organic motorcycle.
Near ultraviolet light with a wavelength of 300 to 400 nm.
Before blocking or weakening, break down the organic binder,
Prevents the attachment of dust and makes the photocatalytic function usable
An object of the present invention is to provide a method for supporting a photocatalyst .
【０００９】[0009]
【００１０】[0010]
【００１１】[0011]
【課題を解決するための手段】本発明の第１の目的を達
成するための第１の手段は、光触媒活性を持つ二酸化チ
タン粒子を、無機質粒子略表面の略一面にわたって担持
し、有機系バインダを混合してなる構成としたものであ
る。A first means for achieving the first object of the present invention is to support titanium dioxide particles having photocatalytic activity over substantially the entire surface of inorganic particles.
In addition, an organic binder is mixed .
【００１２】また、第２の目的を達成するための第２の
手段は、光触媒活性を持つ二酸化チタン粒子を集合させ
相互担持し、有機系バインダを混合してなる構成とした
ものである。A second means for attaining the second object is a structure in which titanium dioxide particles having photocatalytic activity are aggregated, mutually supported , and mixed with an organic binder .
【００１３】[0013]
【００１４】また、第３の目的を達成するための第３の
手段は、対象物体表面に吹き付け、あるいは塗布後、波
長が３００〜４００ｎｍの近紫外光を照射する請求項１
または２記載の構成としたものである。Further, a third means for achieving the third object is blown to the object surface or after application, claim wavelength is irradiated with near-ultraviolet light of 300 to 400 nm 1
Or the configuration described in 2 .
【００１５】[0015]
【００１６】[0016]
【作用】本発明は上記した第１の手段の構成により、光
触媒活性を持つ二酸化チタン粒子を、無機質粒子表面、
略一面にわたって担持させるため、波長が３００〜４０
０ｎｍの近紫外光を一方向から照射した場合、反対側の
光触媒活性を持つ二酸化チタン粒子は、近紫外光が当た
らず、励起しないため、その部分の有機系バインダの分
解を防止することができる。According to the first aspect of the present invention, titanium dioxide particles having photocatalytic activity are formed on the surface of inorganic particles,
The wavelength is 300 to 40 in order to support almost one surface.
When irradiating near-ultraviolet light of 0 nm from one direction, the titanium dioxide particles having photocatalytic activity on the opposite side are not irradiated with near-ultraviolet light and are not excited, so that the decomposition of the organic binder in that part can be prevented. .
【００１７】また、第２の手段の構成により、材料が光
触媒活性を持つ二酸化チタン粒子のみのため、製造上簡
単に集合させ相互担持することができる。Further, according to the configuration of the second means, since the material is only titanium dioxide particles having photocatalytic activity, they can be easily assembled and mutually supported in production.
【００１８】また、第３の手段の構成により、物体表面
に容易に吹き付け塗布ができるので、波長が３００〜４
００ｎｍの近紫外光を照射した際、光触媒体の物体側の
光触媒活性を持つ二酸化チタン粒子に、近紫外光が当た
らず、励起しないため、光触媒体と物体との間の有機系
バインダの分解を防止することができる。Further, according to the structure of the third means, the surface of the object can be easily sprayed and applied, so that the wavelength is 300 to 4
When irradiated with near-ultraviolet light of 00 nm, the titanium dioxide particles having photocatalytic activity on the object side of the photocatalyst body are not irradiated with near-ultraviolet light and are not excited, so that the decomposition of the organic binder between the photocatalyst body and the object is prevented. Can be prevented.
【００１９】また、第４の手段の構成により、光触媒体
表面の有機系バインダを分解し、ゴミ等の付着を防止
し、いつでも使用可能な状態にすることができる。Further, by the structure of the fourth means, it is possible to decompose the organic binder on the surface of the photocatalyst, prevent adhesion of dust and the like, and make the photocatalyst usable at any time.
【００２０】[0020]
【００２１】[0021]
（実施例１）以下、本発明の第１実施例について、図１
を参照しながら説明する。Embodiment 1 Hereinafter, a first embodiment of the present invention will be described with reference to FIG.
This will be described with reference to FIG.
【００２２】図に示すように、光触媒体１は無機質粒子
２の表面に、略一面にわたって光触媒活性を持つ二酸化
チタン粒子３が担持されている。無機質粒子２として
は、アタパルジャイント、セピオライト等の珪酸マグネ
シウム系、あるいはゼオライト、ジークライト、ペント
ナイト、カオリン等の珪酸アルミニウム系、その他アル
ミナ、あるいは光触媒活性を持たない二酸化チタン等が
ある。担持方法としては、焼結担持方法があり、その
他、熱担持、溶融担持、あるいは無機系のバインダ使用
による担持方法がある。無機系のバインダ使用の場合
は、光触媒体１の表面に無機系のバインダが付着し、光
触媒活性を損なわない注意が必要となる。光触媒活性を
持つ二酸化チタン粒子３の大きさは、略Φ１０〜２０ｎ
ｍ、無機質粒子２の大きさは、光触媒活性を持つ二酸化
チタン粒子３と同程度以上である。光触媒体１の大きさ
を、可視光は通るが、波長が３００〜４００ｎｍの近紫
外光をカットする大きさとすれば、透明性を持たせるこ
とができる。As shown in the figure, in the photocatalyst 1, titanium dioxide particles 3 having photocatalytic activity are carried on substantially the entire surface of the inorganic particles 2. Examples of the inorganic particles 2 include magnesium silicates such as attapulgite and sepiolite, aluminum silicates such as zeolite, siegrite, pentonite, and kaolin, other alumina, and titanium dioxide having no photocatalytic activity. As a supporting method, there is a sintering supporting method, and in addition, there is a supporting method using heat, melting, or using an inorganic binder. In the case of using an inorganic binder, care must be taken so that the inorganic binder adheres to the surface of the photocatalyst 1 and does not impair the photocatalytic activity. The size of the titanium dioxide particles 3 having photocatalytic activity is approximately Φ10 to 20 n.
m, the size of the inorganic particles 2 is equal to or greater than that of the titanium dioxide particles 3 having photocatalytic activity. If the size of the photocatalyst 1 is set to a size that cuts near-ultraviolet light having a wavelength of 300 to 400 nm while allowing visible light to pass, transparency can be imparted.
【００２３】上記構成により、光触媒体１は光触媒活性
を持つ二酸化チタン粒子３を、無機質粒子２の表面略一
面にわたって担持しているため、波長が３００〜４００
ｎｍの近紫外光を一方向から照射した場合、無機質粒子
２が十分大きければ、反対側の光触媒活性を持つ二酸化
チタン粒子３は、近紫外光が当たらず、励起しないた
め、物体表面との接着機能を持つ有機系バインダの分解
を防止することができる。With the above configuration, the photocatalyst 1 supports the titanium dioxide particles 3 having photocatalytic activity over substantially the entire surface of the inorganic particles 2, so that the wavelength is 300 to 400.
When irradiated with near-ultraviolet light of 1 nm from one direction, if the inorganic particles 2 are sufficiently large, the titanium dioxide particles 3 having photocatalytic activity on the opposite side are not irradiated with near-ultraviolet light and are not excited. Decomposition of the organic binder having a function can be prevented.
【００２４】なお、核に複数の無機質粒子を用いてもよ
く、その作用効果に差異は生じない。Note that a plurality of inorganic particles may be used for the nucleus, and there is no difference in the operation and effect.
【００２５】このように本発明の第１実施例の光触媒体
によれば、物体表面に接着させる有機系バインダを分解
することなく、光触媒体を活性化することができ、また
透明性を有することができる。As described above, according to the photocatalyst of the first embodiment of the present invention, the photocatalyst can be activated without decomposing the organic binder adhered to the surface of the object, and the photocatalyst has transparency. Can be.
【００２６】（実施例２）つぎに本発明の第２実施例に
ついて、図２〜図３を参照しながら説明する。尚、第１
実施例と同一部分については、同一番号を付し詳細な説
明は省略する。図に示すように、光触媒体１は光触媒活
性を持つ二酸化チタン粒子３を集合させ相互担持して構
成されている。担持方法としては、焼結担持方法があ
り、その他、熱担持、溶融担持、あるいは無機系のバイ
ンダ使用による担持方法がある。無機系のバインダ使用
の場合は、光触媒体１の表面に無機系のバインダが付着
し、光触媒活性を損なわない注意が必要となる。光触媒
活性を持つ二酸化チタン粒子３の大きさは、略Φ１０〜
２０ｎｍ、光触媒体１の大きさを、光触媒活性を持つ二
酸化チタン粒子３の大きさの略３〜２０倍、可視光は通
るが、波長が３００〜４００ｎｍの近紫外光をカットす
る大きさとすれば、透明性を持たせることができる。(Embodiment 2) Next, a second embodiment of the present invention will be described with reference to FIGS. The first
The same parts as those of the embodiment are denoted by the same reference numerals, and detailed description is omitted. As shown in the figure, the photocatalyst 1 is formed by assembling and mutually supporting titanium dioxide particles 3 having photocatalytic activity. As a supporting method, there is a sintering supporting method, and in addition, there is a supporting method using heat, melting, or using an inorganic binder. In the case of using an inorganic binder, care must be taken so that the inorganic binder adheres to the surface of the photocatalyst 1 and does not impair the photocatalytic activity. The size of the titanium dioxide particles 3 having photocatalytic activity is approximately Φ10
If the size of the photocatalyst 1 is 20 nm, approximately 3 to 20 times the size of the titanium dioxide particles 3 having photocatalytic activity, visible light is transmitted, but the near ultraviolet light having a wavelength of 300 to 400 nm is cut off. , Can have transparency.
【００２７】上記構成により、光触媒体１は光触媒活性
を持つ二酸化チタン粒子３を集合させ担持する構成のた
め、材料が１種類のみであり、焼結等の担持製造が容易
となる。また、波長が３００〜４００ｎｍの近紫外光を
一方向から照射した場合、反対側の光触媒活性を持つ二
酸化チタン粒子３は、近紫外光が当たらず、励起しない
ため、物体表面との接着機能を持つ有機系バインダの分
解を防止することができる。According to the above configuration, since the photocatalyst 1 has a configuration in which the titanium dioxide particles 3 having photocatalytic activity are assembled and supported, only one kind of material is used, and the supporting and manufacturing such as sintering is facilitated. Further, when near-ultraviolet light having a wavelength of 300 to 400 nm is irradiated from one direction, the titanium dioxide particles 3 having photocatalytic activity on the opposite side are not irradiated with near-ultraviolet light and are not excited. Decomposition of the organic binder can be prevented.
【００２８】このように本発明の第２実施例の光触媒体
によれば、容易に製造することができる。また物体表面
に接着させる有機系バインダを分解させることなく光触
媒体を活性することができ、また透明性を有することが
できる。As described above, according to the photocatalyst of the second embodiment of the present invention, it can be easily manufactured. Further, the photocatalyst can be activated without decomposing the organic binder adhered to the surface of the object, and can have transparency.
【００２９】（実施例３）つぎに本発明の第３実施例に
ついて、図４を参照しながら説明する。尚、第１実施例
と同一部分については、同一番号を付し詳細な説明は省
略する。Embodiment 3 Next, a third embodiment of the present invention will be described with reference to FIG. The same parts as those in the first embodiment are denoted by the same reference numerals, and detailed description is omitted.
【００３０】図に示すように、光触媒体１と有機系バイ
ンダ４は混合して構成されている。有機系バインダ４と
しては、相手の物体表面の性質、なじみ性に応じて、ア
クリル系、酢酸ビニール系、フッ素樹脂系、シリコン樹
脂系他と適宜選択される。As shown in the figure, the photocatalyst 1 and the organic binder 4 are mixed. The organic binder 4 is appropriately selected from acrylic, vinyl acetate, fluororesin, silicon resin, and the like according to the properties and conformability of the surface of the object.
【００３１】上記構成により、光触媒体１と有機バイン
ダ４の混合体を物体表面に吹き付け塗布することがで
き、これに波長が３００〜４００ｎｍの近紫外光を照射
した際、光触媒体１と物体との間の光触媒活性を持つ二
酸化チタン粒子３に、近紫外光が当たらず、励起しない
ため、光触媒体１と物体との間の有機系バインダ４の分
解を防止し、接着を維持することができる。With the above configuration, a mixture of the photocatalyst 1 and the organic binder 4 can be sprayed and applied to the surface of the object, and when this is irradiated with near-ultraviolet light having a wavelength of 300 to 400 nm, the photocatalyst 1 and the object are Since near-ultraviolet light does not hit and excite titanium dioxide particles 3 having photocatalytic activity during the period, decomposition of organic binder 4 between photocatalyst 1 and the object can be prevented, and adhesion can be maintained. .
【００３２】このように本発明の第３実施例の光触媒体
によれば、物体表面に容易に吹き付け塗布することがで
き、波長が３００〜４００ｎｍの近紫外光を照射しての
光触媒活性時に、有機系バインダの接着力を維持するこ
とができる。As described above, according to the photocatalyst of the third embodiment of the present invention, the photocatalyst can be easily spray-coated on the surface of the object, and when the photocatalyst is activated by irradiating near ultraviolet light having a wavelength of 300 to 400 nm, The adhesive strength of the organic binder can be maintained.
【００３３】（実施例４）つぎに本発明の第４実施例に
ついて、図５を参照しながら説明する。尚、第３実施例
と同一部分については、同一番号を付し詳細な説明は省
略する。(Embodiment 4) Next, a fourth embodiment of the present invention will be described with reference to FIG. The same parts as those in the third embodiment are denoted by the same reference numerals, and detailed description is omitted.
【００３４】図に示すように、光触媒体１と有機バイン
ダ４は混合して、対象物体表面５に吹き付け塗布されて
いる。その吹き付け塗布された面に、ブラックライト６
により、波長が３００〜４００ｎｍの近紫外光が照射さ
れる。As shown in the figure, the photocatalyst 1 and the organic binder 4 are mixed and spray-coated on the surface 5 of the object. A black light 6 is applied to the sprayed surface.
Irradiates near-ultraviolet light having a wavelength of 300 to 400 nm.
【００３５】上記構成により、ブラックライト６によ
り、波長が３００〜４００ｎｍの近紫外光を照射する
と、光触媒体１の表面の有機系バインダ４を分解し、ゴ
ミ等の付着、接着およびゴミ付着による近紫外光の遮断
を防止し、対象の汚染有機成分が光触媒体１上に付着す
ると、光触媒体１による波長が３００〜４００ｎｍの近
紫外光活性作用による油等の分解、浄化作用がおこり、
塗布面はいつでも使用可能な状態にすることができる。With the above configuration, when near-ultraviolet light having a wavelength of 300 to 400 nm is irradiated by the black light 6, the organic binder 4 on the surface of the photocatalyst 1 is decomposed, and the adhesion and adhesion of dust and the like, and When the blocking of ultraviolet light is prevented and the contaminated organic component of interest adheres to the photocatalyst 1, the photocatalyst 1 decomposes and purifies oil and the like by the near-ultraviolet light activating action having a wavelength of 300 to 400 nm,
The application surface can be ready for use at any time.
【００３６】このように本発明の第４実施例の請求項３
記載の光触媒体の担持方法によれば、光触媒体の表面の
有機系バインダを分解し、ゴミ等の付着およびゴミ付着
による近紫外光の遮断を防止し、塗布面はいつでも使用
可能な状態にすることができる。As described above, according to the fourth embodiment of the present invention, there is provided the third embodiment.
According to the method for supporting a photocatalyst described above, the organic binder on the surface of the photocatalyst is decomposed, adhesion of dust and the like and blocking of near-ultraviolet light due to dust adhesion are prevented, and the coated surface is ready for use. be able to.
【００３７】[0037]
【００３８】[0038]
【００３９】[0039]
【００４０】[0040]
【００４１】[0041]
【発明の効果】以上の実施例から明らかなように、本発
明によれば、核になる無機質粒子として熱担持し易いも
のを選定することができるので、物体表面に接着させる
有機系バインダを分解することなく光触媒体を活性化す
ることができ、また透明性を有することができるという
効果のある光触媒体が提供できる。As is clear from the above examples, according to the present invention, it is possible to select inorganic particles serving as nuclei that can easily carry heat, so that the organic binder to be adhered to the object surface is decomposed. Thus, the photocatalyst can be activated without causing the photocatalyst, and the photocatalyst having the effect of having transparency can be provided.
【００４２】また、材料として光触媒活性を持つ二酸化
チタン粒子のみのため、容易に製造することのできる、
物体表面に接着させる有機系バインダを分解させること
なく光触媒体を活性化することができ、透明性を有する
ことができるという効果のある光触媒体が提供できる。Further, since only titanium dioxide particles having photocatalytic activity are used as a material, it can be easily produced.
The photocatalyst can be activated without decomposing the organic binder to be adhered to the surface of the object, and a photocatalyst having an effect of having transparency can be provided.
【００４３】さらに、あらゆる物体表面に、吹き付け塗
布することができ、光触媒性能を損なうことなく、耐久
性をもたせ、かつ作業性良く担持することができるとと
もに、光触媒活性時に、有機系バインダの接着力を維持
し、接着力において耐久性を維持することができるとい
う効果のある光触媒体が提供できる。Further, it can be spray-coated on any object surface, can be provided with durability and good workability without deteriorating the photocatalytic performance. And a photocatalyst having an effect of maintaining durability in terms of adhesive strength can be provided.
【００４４】さらに、光触媒体の表面の有機系バインダ
を分解し、ゴミ等の付着およびゴミ付着による近紫外光
の遮断を防止し、いつでも使用可能な状態にすることが
できる効果のある光触媒体が提供できる。Furthermore, a photocatalyst that has the effect of decomposing the organic binder on the surface of the photocatalyst, preventing the adhesion of dust and the like, and blocking the near ultraviolet light due to the adhesion of dust, and making it ready for use. Can be provided.
【００４５】[0045]
【図１】本発明の第１実施例の光触媒体の断面図FIG. 1 is a sectional view of a photocatalyst according to a first embodiment of the present invention.
【図２】同第２実施例の光触媒体の断面図FIG. 2 is a sectional view of a photocatalyst according to the second embodiment.
【図３】同第２実施例の同断面図FIG. 3 is a sectional view of the second embodiment.
【図４】同第３実施例の光触媒体の断面図FIG. 4 is a sectional view of a photocatalyst according to the third embodiment.
【図５】同第４実施例の光触媒体の担持方法の概念図FIG. 5 is a conceptual diagram of a method for supporting a photocatalyst according to the fourth embodiment.
１ 光触媒体 ２ 無機質粒子 ３ 光触媒活性を持つ二酸化チタン粒子 ４ 有機系バインダ ６ ブラックライト REFERENCE SIGNS LIST 1 photocatalyst 2 inorganic particles 3 titanium dioxide particles having photocatalytic activity 4 organic binder 6 black light
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 平４−334552（ＪＰ，Ａ) 特開 平５−154473（ＪＰ，Ａ) 特開 昭54−142187（ＪＰ，Ａ) 特開 昭63−65942（ＪＰ，Ａ) 特開 平３−101840（ＪＰ，Ａ) 特開 平７−148434（ＪＰ，Ａ) 特開 平６−182218（ＪＰ，Ａ) 米国特許4997576（ＵＳ，Ａ) (58)調査した分野(Int.Cl.7，ＤＢ名) B01J 21/00 - 38/74 B01D 53/86 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-4-334552 (JP, A) JP-A-5-154473 (JP, A) JP-A-54-142187 (JP, A) JP-A-63-1988 65942 (JP, A) JP-A-3-101840 (JP, A) JP-A-7-148434 (JP, A) JP-A-6-182218 (JP, A) US Patent 4,997,576 (US, A) (58) Field surveyed (Int. Cl. 7 , DB name) B01J 21/00-38/74 B01D 53/86
Claims (3)
無機質粒子略表面の略一面にわたって担持し、有機系バ
インダを混合してなる光触媒体。1. Titanium dioxide particles having photocatalytic activity,
A photocatalyst that is supported on substantially the entire surface of inorganic particles and mixed with an organic binder.
合させ相互担持し、有機系バインダを混合してなる光触
媒体。2. A photocatalyst obtained by assembling titanium dioxide particles having photocatalytic activity, mutually supporting them, and mixing an organic binder.
後、波長が３００〜４００ｎｍの近紫外光を照射する請
求項１または２記載の光触媒体の担持方法。3. The method for supporting a photocatalyst according to claim 1, wherein near-ultraviolet light having a wavelength of 300 to 400 nm is irradiated after spraying or coating the surface of the target object.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20931793A JP3279755B2 (en) | 1993-08-24 | 1993-08-24 | Photocatalyst and method for supporting photocatalyst |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20931793A JP3279755B2 (en) | 1993-08-24 | 1993-08-24 | Photocatalyst and method for supporting photocatalyst |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0760132A JPH0760132A (en) | 1995-03-07 |
| JP3279755B2 true JP3279755B2 (en) | 2002-04-30 |
Family
ID=16570952
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20931793A Expired - Fee Related JP3279755B2 (en) | 1993-08-24 | 1993-08-24 | Photocatalyst and method for supporting photocatalyst |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3279755B2 (en) |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3653761B2 (en) * | 1994-11-11 | 2005-06-02 | 東陶機器株式会社 | Method for forming member having photocatalyst |
| JP3596834B2 (en) * | 1995-06-14 | 2004-12-02 | 東陶機器株式会社 | Road sign reflector with self-cleaning surface |
| JP3704817B2 (en) * | 1995-07-08 | 2005-10-12 | 東陶機器株式会社 | Toilet bowl |
| JP2991096B2 (en) * | 1995-12-15 | 1999-12-20 | 松下電器産業株式会社 | Bottomed container with photocatalyst and molding method |
| JP3882625B2 (en) * | 1995-12-22 | 2007-02-21 | 東陶機器株式会社 | Sound insulation wall and cleaning method for sound insulation wall |
| JP3760509B2 (en) * | 1995-12-22 | 2006-03-29 | 東陶機器株式会社 | Greenhouse ceiling and its condensation prevention method |
| JP3588206B2 (en) * | 1995-12-22 | 2004-11-10 | 東陶機器株式会社 | Self-cleaning road decorative panel, and method of cleaning road decorative panel |
| JP3588202B2 (en) * | 1995-12-22 | 2004-11-10 | 東陶機器株式会社 | Anti-fog road mirror and its anti-fog method |
| JP3588205B2 (en) * | 1995-12-22 | 2004-11-10 | 東陶機器株式会社 | Self-cleaning guard fence and method of cleaning guard fence |
| JPH09231821A (en) * | 1995-12-22 | 1997-09-05 | Toto Ltd | Luminaire and method for maintaining illuminance |
| JP3622404B2 (en) * | 1996-02-29 | 2005-02-23 | 東芝ライテック株式会社 | Display unit |
| JP2920204B2 (en) * | 1996-10-31 | 1999-07-19 | 工業技術院長 | Bacterial growth prevention composite material |
| JP3851443B2 (en) * | 1998-04-10 | 2006-11-29 | 丸尾カルシウム株式会社 | Photocatalyst and photocatalytic composition containing the same |
| JP3991776B2 (en) * | 2002-06-12 | 2007-10-17 | 株式会社デンソー | Photocatalytic filter |
| WO2004062799A1 (en) * | 2003-01-09 | 2004-07-29 | Showa Denko K.K. | Composite particles and method for production thereof and use thereof |
| KR101047284B1 (en) * | 2011-01-05 | 2011-07-07 | (주)삼성 | Functional colored ascon package coated with functional photocatalyst composition on colored ascon package |
| JP6189804B2 (en) * | 2014-09-02 | 2017-08-30 | 株式会社トクヤマ | Composition for photocatalyst coating |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4997576A (en) | 1989-09-25 | 1991-03-05 | Board Of Regents, The University Of Texas System | Materials and methods for photocatalyzing oxidation of organic compounds on water |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54142187A (en) * | 1978-04-28 | 1979-11-06 | Hitachi Ltd | Preparation of speherical titanium oxide catalyst |
| US4737478A (en) * | 1986-07-02 | 1988-04-12 | Chevron Research Company | Process for the manufacture of spheroidal bodies by selective agglomeration |
| JPH03101840A (en) * | 1989-09-14 | 1991-04-26 | Toshiba Corp | Catalytic body for high temperature combustion |
| JP2971169B2 (en) * | 1991-05-08 | 1999-11-02 | 三菱重工業株式会社 | Photocatalytic composite material |
| JPH05154473A (en) * | 1991-12-06 | 1993-06-22 | Nippon Fuoto Sci:Kk | Photochemical reaction treatment for fluid |
| JPH06182218A (en) * | 1992-03-27 | 1994-07-05 | Pentel Kk | Oxidation / reduction method using composite photocatalyst powder |
| JP2613179B2 (en) * | 1993-07-12 | 1997-05-21 | 石原産業株式会社 | Photocatalyst and water purification method using the same |
-
1993
- 1993-08-24 JP JP20931793A patent/JP3279755B2/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4997576A (en) | 1989-09-25 | 1991-03-05 | Board Of Regents, The University Of Texas System | Materials and methods for photocatalyzing oxidation of organic compounds on water |
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