JP2003112055A - Method for forming photocatalyst layer - Google Patents
Method for forming photocatalyst layerInfo
- Publication number
- JP2003112055A JP2003112055A JP2001309565A JP2001309565A JP2003112055A JP 2003112055 A JP2003112055 A JP 2003112055A JP 2001309565 A JP2001309565 A JP 2001309565A JP 2001309565 A JP2001309565 A JP 2001309565A JP 2003112055 A JP2003112055 A JP 2003112055A
- Authority
- JP
- Japan
- Prior art keywords
- layer
- adhesion
- imparting agent
- photocatalyst
- photocatalyst particles
- 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.)
- Granted
Links
- 239000011941 photocatalyst Substances 0.000 title claims abstract description 78
- 238000000034 method Methods 0.000 title claims abstract description 14
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 61
- 239000002245 particle Substances 0.000 claims abstract description 51
- 238000005507 spraying Methods 0.000 claims abstract description 20
- 239000000203 mixture Substances 0.000 claims abstract description 16
- 239000008187 granular material Substances 0.000 claims abstract description 7
- 239000011248 coating agent Substances 0.000 claims description 9
- 238000000576 coating method Methods 0.000 claims description 9
- 239000002904 solvent Substances 0.000 claims description 9
- 239000000049 pigment Substances 0.000 claims description 7
- 238000004040 coloring Methods 0.000 claims description 3
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 abstract description 10
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 abstract description 10
- 238000012937 correction Methods 0.000 abstract 1
- 239000004568 cement Substances 0.000 description 21
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 9
- 230000001699 photocatalysis Effects 0.000 description 8
- 238000005259 measurement Methods 0.000 description 4
- 239000011505 plaster Substances 0.000 description 3
- 239000000377 silicon dioxide Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 229910019142 PO4 Inorganic materials 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 235000021317 phosphate Nutrition 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- -1 polyorganosiloxane Chemical compound 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 102100033041 Carbonic anhydrase 13 Human genes 0.000 description 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- 101000867860 Homo sapiens Carbonic anhydrase 13 Proteins 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 239000002318 adhesion promoter Substances 0.000 description 1
- 230000001070 adhesive effect Effects 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
- ILRRQNADMUWWFW-UHFFFAOYSA-K aluminium phosphate Chemical compound O1[Al]2OP1(=O)O2 ILRRQNADMUWWFW-UHFFFAOYSA-K 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000011400 blast furnace cement Substances 0.000 description 1
- 239000008119 colloidal silica Substances 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000010459 dolomite Substances 0.000 description 1
- 229910000514 dolomite Inorganic materials 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 239000010881 fly ash Substances 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 239000011507 gypsum plaster Substances 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 239000011508 lime plaster Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 1
- 235000019353 potassium silicate Nutrition 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 150000003377 silicon compounds Chemical class 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- LRXTYHSAJDENHV-UHFFFAOYSA-H zinc phosphate Chemical compound [Zn+2].[Zn+2].[Zn+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O LRXTYHSAJDENHV-UHFFFAOYSA-H 0.000 description 1
- 229910000165 zinc phosphate Inorganic materials 0.000 description 1
Landscapes
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Catalysts (AREA)
Abstract
(57)【要約】 （修正有）
【課題】表面部分にのみ酸化チタンを付着させ、少量の
酸化チタンの使用量で済んでコストパフォーマンスに優
れ、さらにはリバウンドや強度低下がなく、しかもＮＯ
ｘ除去率が格段に向上した光触媒層の形成方法を提供す
る。
【解決手段】被接着体上に付着付与剤を塗布または吹き
付けて、前記付着付与剤からなる層を形成し、形成した
層の付着付与剤が固化する前に、該付着付与剤上に光触
媒粒子を塗布または吹き付けて、前記付着付与剤上に光
触媒粒子を結着させた層としたことを特徴とし、また
は、被接着体上に付着付与剤と凹凸面を有する粒状物と
の混合物を塗布または吹き付けて、層を形成し、形成し
た層が固化する前に、該層上に光触媒粒子を塗布または
吹き付けて、前記層上に光触媒粒子を結着させる。
(57) [Summary] (With corrections) [Problem] To attach titanium oxide only to the surface portion, and use only a small amount of titanium oxide for excellent cost performance. Furthermore, there is no rebound or strength reduction, and NO
Provided is a method for forming a photocatalyst layer having a significantly improved x removal rate. An adhesion-imparting agent is applied or sprayed on an adherend to form a layer made of the adhesion-imparting agent. Before the adhesion-imparting agent in the formed layer is solidified, photocatalyst particles are formed on the adhesion-imparting agent. Is applied or sprayed to form a layer in which the photocatalyst particles are bound onto the adhesion-imparting agent, or a mixture of the adhesion-imparting agent and a granular material having an uneven surface is applied to the adherend or The layer is formed by spraying, and before the formed layer is solidified, the photocatalyst particles are applied or sprayed onto the layer to bind the photocatalyst particles onto the layer.
Description
【０００１】[0001]
【産業上の利用分野】本発明は光触媒体による光触媒層
の形成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 method for forming a photocatalyst layer using a photocatalyst,
【従来の技術】従来、光触媒粒子及び光触媒粒子の製造
法として、特許番号第２９１８７８７号特許及び特許番
号第３０２７７３９号特許が一般に知られている。2. Description of the Related Art Heretofore, as a method for producing photocatalyst particles and photocatalyst particles, patents No. 2918787 and No. 3027739 are generally known.
【０００２】しかしながら前記従来の方法であると、当
初にいわゆる難分解性結着剤と光触媒粒子とを混合して
混合物を形成し、該混合物により光触媒層を形成してお
り、もって光触媒粒子部分が外側に露出することが比較
的少なく光触媒機能の効率があまり芳しくないものとな
っていた。However, in the above-mentioned conventional method, a so-called hardly decomposable binder and photocatalyst particles are first mixed to form a mixture, and the photocatalyst layer is formed from the mixture. It was exposed to the outside relatively little and the efficiency of the photocatalytic function was not so good.
【０００３】また、いわゆる難分解性結着剤たるセメン
トと光触媒粒子とを混合すると、セメントが発熱して瞬
時に固化してしまうため、通常は遅延剤を混入するが、
それによって光触媒機能が低下するとの課題があった。When cement, which is a so-called hard-to-decompose binder, is mixed with photocatalyst particles, the cement heats up and instantly solidifies. Therefore, a retarder is usually mixed in.
As a result, there is a problem that the photocatalytic function is deteriorated.
【０００４】[0004]
【発明が解決しようとする課題】かくして、本発明は前
記従来の課題に対処すべく創案されたものであり、本発
明による光触媒創層の形成方法では、光触媒粒子（酸化
チタン）を例えば付着付与剤を介して被接着体の表面に
比較的高濃度にかつ強固に付着させることが出来、しか
も表面部分にのみ酸化チタンを付着させているため、少
量の酸化チタンの使用量で済んでコストパフォーマンス
に優れ、さらにはリバウンドや強度低下がなく、しかも
ＮＯｘ除去率が格段に向上した光触媒層の形成方法を提
供することを目的とするものである。Thus, the present invention was devised to address the above-mentioned conventional problems, and in the method for forming a photocatalytic wound layer according to the present invention, photocatalyst particles (titanium oxide) are attached, for example. It is possible to firmly adhere to the surface of the adherend with a relatively high concentration via an agent, and since titanium oxide is adhered only to the surface part, a small amount of titanium oxide can be used and cost performance It is an object of the present invention to provide a method for forming a photocatalyst layer, which is excellent in heat resistance, has no rebound or strength reduction, and has a significantly improved NOx removal rate.
【課題を解決するための手段】かくして、本発明は、被
接着体上に付着付与剤を塗布または吹き付けて、前記付
着付与剤からなる層を形成し、形成した層の付着付与剤
が固化する前に、該付着付与剤上に光触媒粒子を塗布ま
たは吹き付けて、前記付着付与剤上に光触媒粒子を結着
させた層としたことを特徴とし、または、被接着体上に
付着付与剤と凹凸面を有する粒状物との混合物を塗布ま
たは吹き付けて、層を形成し、形成した層が固化する前
に、該層上に光触媒粒子を塗布または吹き付けて、前記
層上に光触媒粒子を結着させたことを特徴とし、また
は、被接着体上に付着付与剤を塗布または吹き付けて、
前記付着付与剤からなる層を形成し、形成した層の付着
付与剤が固化する前に、該付着付与剤上に光触媒粒子と
溶媒との混合物を塗布または吹き付けて、前記層上に光
触媒粒子を結着させたことを特徴とし、または、被接着
体上に付着付与剤を塗布または吹き付けて第１層を形成
し、形成した第１層が固化する前に、該第１層上に光触
媒粒子と溶媒と混和剤と凹凸面を有する粒状物との混合
物を塗布または吹き付けて第２層を形成すると共に、前
記付着付与剤上に光触媒粒子を結着させたことを特徴と
し、または、被接着体上に付着付与剤と着色顔料との混
合物を塗布または吹き付けて層を形成し、形成した層が
固化する前に、該層上に光触媒粒子を塗布または吹き付
けて、前記付着付与剤上に光触媒粒子を結着させたこと
を特徴とし、または、被接着体上に付着付与剤を塗布ま
たは吹き付けて層を形成し、形成した層が固化する前
に、該層上に光触媒粒子と溶媒と着色顔料との混合物を
塗布または吹き付けて、前記層上に光触媒粒子を結着さ
せたことを特徴とし、または、前記付着付与剤に混和剤
を混合したことを特徴とするものである。Thus, according to the present invention, the adhesion-imparting agent is applied or sprayed on the adherend to form a layer comprising the adhesion-imparting agent, and the adhesion-imparting agent in the formed layer is solidified. Before, the photocatalyst particles are coated or sprayed on the adhesion-imparting agent to form a layer in which the photocatalyst particles are bound on the adhesion-imparting agent, or the adhesion-imparting agent and the unevenness on the adherend. Coating or spraying a mixture with surface-bearing granules to form a layer and coating or spraying photocatalyst particles on the layer before the layer formed solidifies, binding the photocatalyst particles on said layer Or by applying or spraying an adhesion-imparting agent on the adherend,
A layer comprising the adhesion-imparting agent is formed, and before the adhesion-imparting agent of the formed layer is solidified, a mixture of photocatalyst particles and a solvent is applied or sprayed onto the adhesion-imparting agent to form photocatalyst particles on the layer. Characterized by binding, or by applying or spraying an adhesion-imparting agent on the adherend to form a first layer, and before the first layer formed is solidified, photocatalyst particles are formed on the first layer. And a solvent, an admixture, and a granular material having an uneven surface are applied or sprayed to form a second layer, and photocatalyst particles are bound on the adhesion-imparting agent, or to be adhered. A mixture of an adhesion-imparting agent and a coloring pigment is applied or sprayed on the body to form a layer, and before the formed layer is solidified, photocatalyst particles are applied or sprayed on the layer to form a photocatalyst on the adhesion-imparting agent. Characterized by binding particles, Forming a layer by coating or spraying an adhesion-imparting agent on an adherend, and coating or spraying a mixture of photocatalyst particles, a solvent and a color pigment on the layer before the layer is solidified, It is characterized in that the photocatalyst particles are bound on the top, or the adhering agent is mixed with an admixture.
【発明の実施の態様】以下に本発明による光触媒層の形
成方法につき図に基づいて説明する。BEST MODE FOR CARRYING OUT THE INVENTION A method for forming a photocatalyst layer according to the present invention will be described below with reference to the drawings.
【０００５】図１において、符号１は被接着体を示す。In FIG. 1, reference numeral 1 indicates an adherend.
【０００６】該被接着体１は、通常構造物の壁面等であ
り、その壁面等はコンクリート部材で形成されてあって
もあるいは金属部材で形成されてあっても構わない。The adherend 1 is usually a wall surface or the like of a structure, and the wall surface or the like may be formed of a concrete member or a metal member.
【０００７】また被接着体１の表面は平面であってもあ
るいは球面、曲面に形成されてあっても構わない。The surface of the adherend 1 may be flat, spherical, or curved.
【０００８】まず、この被接着体１上に付着付与剤２を
塗布するかあるいは吹き付ける。First, the adhesion-imparting agent 2 is applied or sprayed onto the adherend 1.
【０００９】被接着体１の表面が球面や曲面の場合は吹
き付けによるのが好ましい。When the surface of the adherend 1 is spherical or curved, it is preferable to spray it.
【００１０】ここで、付着付与剤２とは、光触媒粒子あ
るいは若干形状の大きい光触媒体を所定の物体面に付着
させるために使用するものをいい、しかも光触媒粒子等
自体が有する光触媒機能による付着剤の分解速度を極め
て遅くさせてあるものを指標するものである。Here, the adhesion-imparting agent 2 means an agent used for adhering photocatalyst particles or a photocatalyst body having a slightly larger shape to a predetermined object surface, and moreover, an adhering agent having a photocatalytic function of the photocatalyst particles themselves. It indicates that the decomposition rate of is extremely slowed.
【００１１】すなわち光触媒粒子あるいは光触媒体は自
身が有する光触媒機能により光触媒粒子あるいは光触媒
体を所定の物体面に付着させる付着剤をも分解してしま
う。よって、その分解速度が速い付着剤では光触媒粒子
等が物体から早い時期に脱離してしまい、ひいては光触
媒機能を消滅させてしまうのである。よって光触媒層の
形成に際しては前述した付着付与剤２が必要不可欠とな
る。That is, the photocatalyst particles or photocatalyst body also decomposes the adhesive agent for adhering the photocatalyst particles or photocatalyst body to a predetermined object surface due to the photocatalytic function of itself. Therefore, the photocatalyst particles and the like are desorbed from the object at an early stage with the adhesive having a high decomposition rate, and eventually the photocatalytic function is lost. Therefore, the above-mentioned adhesion-imparting agent 2 is indispensable for forming the photocatalyst layer.
【００１２】ここで、本発明での付着付与剤の例として
は、特に液体としての付着付与剤としては、水ガラス、
コロイダルシリカ、ポリオルガノシロキサンなどのケイ
素化合物、フッ素系ポリマー、シリコン系ポリマーなど
が挙げられる。Here, as an example of the adhesion-imparting agent in the present invention, particularly as a liquid adhesion-imparting agent, water glass,
Examples thereof include colloidal silica, silicon compounds such as polyorganosiloxane, fluorine-based polymers, and silicon-based polymers.
【００１３】また、粉体状をなす付着付与剤の例として
は、リン酸亜鉛、リン酸アルミニウムなどのリン酸塩、
重リン酸塩、セメント、石灰、セッコウ、プラスターな
どの無機系付着付与剤などが挙げられる。Further, examples of the powdery adhesion-imparting agent include phosphates such as zinc phosphate and aluminum phosphate,
Inorganic adhesion-imparting agents such as heavy phosphate, cement, lime, gypsum, plaster, etc. may be mentioned.
【００１４】前記のセメント４としては、例えば早強セ
メント、普通セメント、中庸熱セメント、耐硫酸塩セメ
ント、ホワイト（白色）セメント、油井セメント、地熱
井セメントなどのポルトランドセメント、フライアッシ
ュセメント、高硫酸塩セメント、シリカセメント、高炉
セメントなどの混合セメント、アルミナセメントなどが
挙げられる。Examples of the cement 4 include early-strength cement, normal cement, moderate heat cement, sulfate resistant cement, white (white) cement, oil well cement, port heat cement such as geothermal well cement, fly ash cement, high sulfuric acid. Examples include mixed cement such as salt cement, silica cement, blast furnace cement, and alumina cement.
【００１５】プラスターとしては例えばセッコウプラス
ター、石灰プラスター、ドロマイトプラスターなどが該
当する。As the plaster, for example, gypsum plaster, lime plaster, dolomite plaster and the like are applicable.
【００１６】本実施例では付着付与剤２としてセメント
を使用している。In this embodiment, cement is used as the adhesion-imparting agent 2.
【００１７】しかして、付着付与剤２である粉末材料の
セメントに溶媒である例えば水を加え、それを吹き付け
機３により被接着体１の表面に吹き付け、もって付着付
与剤層を形成する。Then, a solvent such as water is added to the cement of the powder material which is the adhesion-imparting agent 2 and is sprayed on the surface of the adherend 1 by the spraying machine 3 to form the adhesion-imparting agent layer.
【００１８】尚、本実施例では付着付与剤層の形成は付
着付与剤２の吹き付けによったが、ペースト状にしたセ
メントを被接着体１の表面に塗布して形成しても構わな
い。Although the adhesion-imparting agent layer is formed by spraying the adhesion-imparting agent 2 in this embodiment, paste-like cement may be applied to the surface of the adherend 1.
【００１９】この付着付与剤層が固化しないうちに、図
２から理解されるように光触媒粒子４を前記の付着付与
剤層の表面に吹き付ける。そして、光触媒粒子層を形成
すると共に、この光触媒粒子４群を前記の付着付与剤層
に強固に結着させるのである。ここで、光触媒粒子４と
しては酸化チタンが好ましい。Before the adhesion-imparting agent layer is solidified, the photocatalyst particles 4 are sprayed onto the surface of the adhesion-imparting agent layer as understood from FIG. Then, the photocatalyst particle layer is formed, and at the same time, the photocatalyst particle 4 group is firmly bound to the adhesion-imparting agent layer. Here, titanium oxide is preferable as the photocatalyst particles 4.
【００２０】尚、本実施例ではペースト状に形成された
光触媒粒子４を吹き付けて光触媒粒子層を形成したが、
前記のように吹き付けのほか、それを塗布して形成して
も構わない。In this embodiment, the photocatalyst particles 4 formed in paste form were sprayed to form the photocatalyst particle layer.
In addition to spraying as described above, it may be formed by coating.
【００２１】ところで、前記付着付与剤層の形成に際し
ては、付着付与剤２であるセメントに凹凸面を有する粒
状物たるケイ砂を混合したものでも構わない。When forming the adhesion-imparting agent layer, cement which is the adhesion-imparting agent 2 may be mixed with silica sand which is a granular material having an uneven surface.
【００２２】さらに、前記付着付与剤層の上に形成する
光触媒層の形成についても、光触媒粒子４に溶媒である
例えば水を混合させ、その混合物を吹き付けあるいは塗
布して光触媒層を形成しても構わない。Further, regarding the formation of the photocatalyst layer formed on the adhesion-imparting agent layer, the photocatalyst layer may be formed by mixing the photocatalyst particles 4 with water as a solvent and spraying or coating the mixture. I do not care.
【００２３】また、光触媒粒子４に水のみならず、各種
混和剤と凹凸面を有する粒状物であるケイ砂とを混合し
て混合物を生成しそれを吹き付けあるいは塗布しても構
わない。In addition to water, various admixtures may be mixed with the photocatalyst particles 4 and silica sand which is a granular material having an uneven surface to form a mixture, which may be sprayed or coated.
【００２４】ここで、図２に従来法によって光触媒層を
形成したときのＮｏｘ除去率測定結果を、図３に本発明
によって光触媒層を形成したときのＮｏｘ除去率測定結
果を示す。図３に示すように本発明によれば従来の約５
倍のＮｏｘ除去率を達成できた。これは本発明の形成方
法では、光触媒層における光触媒粒子の密度が高濃度と
なった結果、光触媒機能が格段に向上したからに他なら
ない。Here, FIG. 2 shows the Nox removal rate measurement results when the photocatalyst layer was formed by the conventional method, and FIG. 3 shows the Nox removal rate measurement results when the photocatalyst layer was formed by the present invention. According to the present invention, as shown in FIG.
A double Nox removal rate could be achieved. This is due to the fact that in the forming method of the present invention, the density of the photocatalyst particles in the photocatalyst layer becomes high, and as a result, the photocatalytic function is remarkably improved.
【００２５】さらに、前記の付着付与剤２の中に各種色
彩の着色顔料を混合して付着付与剤層を形成すれば、色
彩の鮮やかな光触媒層を形成することが出来る。なお、
この際には光触媒粒子４につきなるべく透明のものを使
用するのが好ましい。Further, if a color pigment of various colors is mixed into the adhesion-imparting agent 2 to form an adhesion-imparting agent layer, a photocatalyst layer having a bright color can be formed. In addition,
In this case, it is preferable that the photocatalyst particles 4 are as transparent as possible.
【００２６】尚、光触媒粒子４と溶媒と着色顔料を混合
した混合物を生成し、その混合物を吹き付け、塗布すれ
ば一層色彩の鮮やかな光触媒層を形成できる。If a mixture of photocatalyst particles 4, a solvent and a coloring pigment is produced, and the mixture is sprayed and applied, a photocatalyst layer having a brighter color can be formed.
【００２７】[0027]
【発明の効果】かくして本発明は以上の構成からなる。As described above, the present invention has the above constitution.
【００２８】そして本発明による光触媒層の形成方法で
あれば、光触媒粒子（酸化チタン）を例えば付着付与剤
を介して被接着体の表面に比較的高濃度にかつ強固に付
着させることが出来、しかも表面部分にのみ酸化チタン
を付着させているため、少量の酸化チタンの使用量で済
んでコストパフォーマンスに優れた光触媒層の形成が出
来る。With the method for forming a photocatalyst layer according to the present invention, the photocatalyst particles (titanium oxide) can be strongly adhered to the surface of the adherend at a relatively high concentration through, for example, an adhesion promoter. Moreover, since titanium oxide is adhered only to the surface portion, a small amount of titanium oxide can be used and a photocatalytic layer excellent in cost performance can be formed.
【００２９】また、リバウンドや強度低下がなく、しか
もＮＯｘ除去率が格段に向上した光触媒層の形成が出来
る。Further, it is possible to form a photocatalyst layer which does not rebound or deteriorate in strength and has a markedly improved NOx removal rate.
【００３０】さらに、着色顔料を混入することにより色
鮮やかな光触媒層の形成が行える。Furthermore, a bright photocatalyst layer can be formed by mixing a color pigment.
【図１】本発明の概略構成を説明する概略構成説明図で
ある。FIG. 1 is a schematic configuration explanatory diagram illustrating a schematic configuration of the present invention.
【図２】従来のＮｏｘ除去率の測定結果を示す表であ
る。FIG. 2 is a table showing measurement results of conventional Nox removal rates.
【図３】本発明によるＮｏｘ除去率の測定結果を示す表
である。FIG. 3 is a table showing measurement results of Nox removal rate according to the present invention.
１ 被接着体 ２ 付着付与剤 ３ 吹き付け機 ４ 光触媒粒子 ５ 酸化チタン 1 adherend 2 Adhesion imparting agent 3 spraying machine 4 Photocatalyst particles 5 Titanium oxide
───────────────────────────────────────────────────── フロントページの続き (72)発明者 瀬田 恵之 東京都千代田区三番町２番地 飛島建設株 式会社内 (72)発明者 伊藤 淳 東京都千代田区三番町２番地 飛島建設株 式会社内 (72)発明者 藤井 秀夫 東京都北区豊島８丁目16番15号 日本特殊 塗料株式会社内 (72)発明者 清水 浩 東京都北区豊島８丁目16番15号 日本特殊 塗料株式会社内 Ｆターム(参考） 4D048 AA06 BA07X BA41X EA01 4G069 AA03 AA08 BA04B BA48A CA13 DA06 FA03 FB23 FB71 ─────────────────────────────────────────────────── ─── Continued front page (72) Inventor Yoshiyuki Seta 2 Sanbancho, Chiyoda-ku, Tokyo Tobishima Construction Co., Ltd. Inside the company (72) Inventor Jun Ito 2 Sanbancho, Chiyoda-ku, Tokyo Tobishima Construction Co., Ltd. Inside the company (72) Inventor Hideo Fujii 8-16-15 Toyoshima, Kita-ku, Tokyo Japan Special Paint Co., Ltd. (72) Inventor Hiroshi Shimizu 8-16-15 Toyoshima, Kita-ku, Tokyo Japan Special Paint Co., Ltd. F-term (reference) 4D048 AA06 BA07X BA41X EA01 4G069 AA03 AA08 BA04B BA48A CA13 DA06 FA03 FB23 FB71
Claims (7)
き付けて、前記付着付与剤からなる層を形成し、 形成した層の付着付与剤が固化する前に、該付着付与剤
上に光触媒粒子を塗布または吹き付けて、前記付着付与
剤上に光触媒粒子を結着させた層としたことを特徴とす
る光触媒層の形成方法。1. A photocatalyst on the adhesion-imparting agent before the adhesion-imparting agent in the formed layer is solidified by coating or spraying the adhesion-imparting agent on the adherend. A method for forming a photocatalyst layer, characterized in that particles are applied or sprayed to form a layer in which photocatalyst particles are bound on the adhesion-imparting agent.
る粒状物との混合物を塗布または吹き付けて、層を形成
し、 形成した層が固化する前に、該層上に光触媒粒子を塗布
または吹き付けて、前記層上に光触媒粒子を結着させた
ことを特徴とする光触媒層の形成方法。2. A layer is formed by applying or spraying a mixture of an adhesion-imparting agent and a granular material having an uneven surface onto an adherend to form photocatalyst particles on the layer before the formed layer is solidified. A method for forming a photocatalyst layer, characterized by coating or spraying to bind photocatalyst particles on the layer.
き付けて、前記付着付与剤からなる層を形成し、 形成した層の付着付与剤が固化する前に、該付着付与剤
上に光触媒粒子と溶媒との混合物を塗布または吹き付け
て、前記層上に光触媒粒子を結着させたことを特徴とす
る光触媒層の形成方法。3. A photocatalyst on the adhesion-imparting agent before the adhesion-imparting agent of the formed layer is solidified by applying or spraying the adhesion-imparting agent on the adherend to form a layer of the adhesion-imparting agent. A method for forming a photocatalyst layer, which comprises applying or spraying a mixture of particles and a solvent to bind photocatalyst particles onto the layer.
き付けて第１層を形成し、 形成した第１層が固化する前に、該第１層上に光触媒粒
子と溶媒と混和剤と凹凸面を有する粒状物との混合物を
塗布または吹き付けて第２層を形成すると共に、前記付
着付与剤上に光触媒粒子を結着させたことを特徴とする
光触媒層の形成方法。4. A first layer is formed by applying or spraying an adhesion-imparting agent on an adherend, and before the formed first layer is solidified, photocatalyst particles, a solvent, and an admixture are formed on the first layer. A method for forming a photocatalyst layer, which comprises applying or spraying a mixture with a granular material having an uneven surface to form a second layer and binding photocatalyst particles onto the adhesion-imparting agent.
混合物を塗布または吹き付けて層を形成し、 形成した層が固化する前に、該層上に光触媒粒子を塗布
または吹き付けて、前記付着付与剤上に光触媒粒子を結
着させたことを特徴とする光触媒層の形成方法。5. A layer is formed by coating or spraying a mixture of an adhesion-imparting agent and a color pigment on an adherend, and photocatalyst particles are coated or sprayed on the layer before the formed layer is solidified. A method for forming a photocatalyst layer, which comprises binding photocatalyst particles onto the adhesion-imparting agent.
き付けて層を形成し、 形成した層が固化する前に、該層上に光触媒粒子と溶媒
と着色顔料との混合物を塗布または吹き付けて、前記層
上に光触媒粒子を結着させたことを特徴とする光触媒層
の形成方法。6. An adhesion-imparting agent is applied or sprayed onto the adherend to form a layer, and before the formed layer is solidified, a mixture of photocatalyst particles, a solvent and a coloring pigment is applied or sprayed onto the layer. And forming photocatalyst particles on the layer.
を特徴とする請求項１乃至請求項６に記載された光触媒
層の形成方法。7. The method of forming a photocatalyst layer according to claim 1, wherein an admixture is mixed with the adhesion-imparting agent.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11171630A (en) * | 1997-12-15 | 1999-06-29 | Mitsubishi Materials Corp | Cement product for air purification |
| JP2000096800A (en) * | 1998-03-18 | 2000-04-04 | Toto Ltd | Antifouling building material and manufacture thereof |
| JP2001029797A (en) * | 1999-07-21 | 2001-02-06 | Sumitomo Osaka Cement Co Ltd | Pollutant removal material and production of the same |
| JP2001179112A (en) * | 1999-12-24 | 2001-07-03 | Tsuneo Sugito | Method of sticking/fixing titanium dioxide to three- dimensional and two-dimensional structures and contact method |
| JP2001341226A (en) * | 2000-06-02 | 2001-12-11 | Nippon Soda Co Ltd | Colored photocatalyst support structure and coating solution for forming the same |
-
2001
- 2001-10-05 JP JP2001309565A patent/JP3850706B2/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11171630A (en) * | 1997-12-15 | 1999-06-29 | Mitsubishi Materials Corp | Cement product for air purification |
| JP2000096800A (en) * | 1998-03-18 | 2000-04-04 | Toto Ltd | Antifouling building material and manufacture thereof |
| JP2001029797A (en) * | 1999-07-21 | 2001-02-06 | Sumitomo Osaka Cement Co Ltd | Pollutant removal material and production of the same |
| JP2001179112A (en) * | 1999-12-24 | 2001-07-03 | Tsuneo Sugito | Method of sticking/fixing titanium dioxide to three- dimensional and two-dimensional structures and contact method |
| JP2001341226A (en) * | 2000-06-02 | 2001-12-11 | Nippon Soda Co Ltd | Colored photocatalyst support structure and coating solution for forming the same |
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