JPH1120067A - Photocatalytically functional material for sticking - Google Patents
Photocatalytically functional material for stickingInfo
- Publication number
- JPH1120067A JPH1120067A JP10159669A JP15966998A JPH1120067A JP H1120067 A JPH1120067 A JP H1120067A JP 10159669 A JP10159669 A JP 10159669A JP 15966998 A JP15966998 A JP 15966998A JP H1120067 A JPH1120067 A JP H1120067A
- Authority
- JP
- Japan
- Prior art keywords
- binder layer
- photocatalytic
- particles
- layer
- functional material
- 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
- 239000000463 material Substances 0.000 title claims abstract description 27
- 239000002245 particle Substances 0.000 claims abstract description 32
- 239000011230 binding agent Substances 0.000 claims abstract description 31
- 230000001699 photocatalysis Effects 0.000 claims abstract description 23
- 239000011941 photocatalyst Substances 0.000 claims description 18
- 239000000758 substrate Substances 0.000 claims description 3
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 abstract description 13
- 230000001877 deodorizing effect Effects 0.000 abstract description 4
- 239000003232 water-soluble binding agent Substances 0.000 abstract description 3
- 229910010413 TiO 2 Inorganic materials 0.000 description 15
- 238000010438 heat treatment Methods 0.000 description 6
- LSDPWZHWYPCBBB-UHFFFAOYSA-N Methanethiol Chemical compound SC LSDPWZHWYPCBBB-UHFFFAOYSA-N 0.000 description 4
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 230000000844 anti-bacterial effect Effects 0.000 description 2
- 230000003197 catalytic effect Effects 0.000 description 2
- 238000004332 deodorization Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 230000003373 anti-fouling effect Effects 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- TUJKJAMUKRIRHC-UHFFFAOYSA-N hydroxyl Chemical compound [OH] TUJKJAMUKRIRHC-UHFFFAOYSA-N 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Application Of Or Painting With Fluid Materials (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Laminated Bodies (AREA)
- Catalysts (AREA)
- Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
Abstract
Description
【0001】[0001]
【発明の属する技術分野】本発明は、脱臭、抗菌、防汚
等の光触媒機能を有する貼着用光触媒機能材に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sticking photocatalytic material having a photocatalytic function such as deodorization, antibacterial and antifouling.
【0002】[0002]
【従来の技術】紫外線の照射を受けて脱臭反応を進行さ
せる光触媒としてアナターゼ型のTiO2が知られてい
る。そして、光触媒粒子をバインダに混練した原料を居
住空間の壁面を構成する部材の表面に塗布した後に焼成
することで、居住空間の壁面に脱臭壁機能をもたせるよ
うにした提案を本出願人は先に行なっている。2. Description of the Related Art Anatase-type TiO2 is known as a photocatalyst for promoting a deodorizing reaction upon irradiation with ultraviolet rays. The applicant of the present invention has proposed a proposal in which the raw material obtained by kneading the photocatalyst particles into a binder is applied to the surface of a member constituting the wall surface of the living space and then fired so that the wall surface of the living space has a deodorizing wall function. I have done it.
【0003】[0003]
【発明が解決しようとする課題】図6は脱臭壁の一部部
分拡大断面図であり、壁材100の表面にはバインダ層
101が形成され、このバインダ層101に光触媒粒子
102が保持されている。FIG. 6 is a partially enlarged cross-sectional view of a deodorizing wall. A binder layer 101 is formed on the surface of a wall material 100, and a photocatalyst particle 102 is held on the binder layer 101. I have.
【0004】上記光触媒粒子102を含んだ層を形成す
るには、光触媒粒子をゾル状に吹きつけ、更に加熱せし
めた後に冷却する等の作業が必要になる。このため、既
存のタイル等に家庭において光触媒効果を付与するのは
面倒である。[0004] In order to form a layer containing the photocatalyst particles 102, it is necessary to spray the photocatalyst particles in a sol form, further heat them, and then cool them. For this reason, it is troublesome to provide a photocatalytic effect at home to existing tiles and the like.
【0005】[0005]
【課題を解決するための手段】上記課題を解決すべく本
願は、離型シート表面に第1のバインダ層を介して基材
をけ、この基材の第1のバインダ層とは反対側の表面に
第2のバインダ層を介して光触媒粒を固定せしめた。こ
のような構成とすることで、離型シートを剥がすだけ
で、所望の箇所に光触媒層を形成することが可能にな
る。In order to solve the above-mentioned problems, the present invention discloses a method in which a base material is provided on the surface of a release sheet via a first binder layer, and the base material is provided on the side opposite to the first binder layer. The photocatalyst particles were fixed on the surface via the second binder layer. With this configuration, it is possible to form a photocatalyst layer at a desired location only by peeling off the release sheet.
【0006】前記第2のバインダ層を光触媒機能によっ
て分解されにくい材料にて構成することで、バインダ層
からの光触媒粒粒子の欠落を防止することができる。By forming the second binder layer from a material that is not easily decomposed by the photocatalytic function, it is possible to prevent the photocatalyst particles from dropping from the binder layer.
【0007】また、前記第2のバインダ層を、基材側に
設けられる下層と外部に露出する上層にて構成し、下層
は光触媒粒子を含まず、上層は光触媒粒子を含み且つ光
触媒機能によって分解されにくい材料から構成すること
も可能である。The second binder layer comprises a lower layer provided on the substrate side and an upper layer exposed to the outside, wherein the lower layer does not contain photocatalyst particles, the upper layer contains photocatalyst particles, and is decomposed by the photocatalytic function. It is also possible to use a material that is difficult to perform.
【0008】[0008]
【発明の実施の形態】以下に本発明の実施の形態を添付
図面に基づいて説明する。ここで、図1は本発明に係る
貼着用光触媒機能材の断面図であり、離型紙5の表面に
水溶性バインダ6を介して基材2が設けられ、この基材
2の表面にバインダ層7を形成し、このバインダ層7の
表面にTiO2粒子3をその一部が露出するように吹き付
けてシートSを構成している。Embodiments of the present invention will be described below with reference to the accompanying drawings. Here, FIG. 1 is a cross-sectional view of the photocatalytic functional material to be attached according to the present invention, in which a base material 2 is provided on a surface of a release paper 5 via a water-soluble binder 6, and a binder layer is provided on the surface of the base material 2. The sheet S is formed by spraying TiO 2 particles 3 on the surface of the binder layer 7 so that a part thereof is exposed.
【0009】具体的には、バインダ層7の表面にスプレ
ー等を用いて光触媒粒子としてのアナターゼ型TiO2粒
子3をゾル状にして吹き付け、次いでバインダ層7を加
熱溶融せしめた後、冷却して固化せしめる。尚、TiO2
ゾルにはCuやAg等を添加して殺菌効果をもたせるよう
にしてもよい。添加の方法としては例えばCuSO4をN
H3溶液でpH11程度に調整したTiO2ゾルに添加す
る。Specifically, the anatase-type TiO 2 particles 3 as photocatalyst particles are sprayed on the surface of the binder layer 7 using a spray or the like, and then the binder layer 7 is heated and melted, and then cooled. Let it solidify. In addition, TiO 2
The sol may be added with Cu, Ag or the like to have a bactericidal effect. As a method of addition, for example, CuSO 4
The solution is added to a TiO 2 sol adjusted to about pH 11 with an H 3 solution.
【0010】また、前記バインダ層7を、基材側に設け
られる下層と外部に露出する上層にて構成し、下層はT
iO2粒子3を含まず、上層はTiO2粒子3を含み且つ光
触媒機能によって分解されにくい材料から構成すること
も可能である。The binder layer 7 comprises a lower layer provided on the base material side and an upper layer exposed to the outside.
free of iO 2 particles 3, the top layer can be composed of a material hardly decomposed by and photocatalytic function comprise TiO 2 particles 3.
【0011】以上において、離型紙5を剥離してシート
Sをタイル素地1表面に貼着し、この後前記と同様にし
て加熱し冷却する。このように光触媒機能を有するシー
トSを別体として用意しておけば、既存のタイル等にも
脱臭等の光触媒機能を簡単に付与することができる。In the above, the release paper 5 is peeled off, the sheet S is adhered to the surface of the tile substrate 1, and then heated and cooled in the same manner as described above. If the sheet S having the photocatalytic function is prepared separately as described above, a photocatalytic function such as deodorization can be easily imparted to existing tiles and the like.
【0012】ところで、TiO2ゾルは前記したようにバ
インダ層7の表面に吹き付け、完全に埋没させないた
め、図2に示すようにTiO2粒子3はその一部がバイン
ダ層7内に入り込み、他の部分が露出した状態でバイン
ダ層7に保持される。Since the TiO 2 sol is sprayed on the surface of the binder layer 7 and is not completely buried as described above, a part of the TiO 2 particles 3 enter the binder layer 7 as shown in FIG. Are held by the binder layer 7 in a state where the portions are exposed.
【0013】その結果、図示しない壁面等に固定したラ
ンプからの紫外線をTiO2粒子3の露出した部分に直接
照射することができる。そして紫外線がTiO2粒子3に
照射されると、吸着水と光触媒の正孔とが反応して水酸
基ラジカル(OH*)を生成し、この水酸基ラジカルと
アンモニアとが下式(1)のように反応し、また水酸基
ラジカルとメチルメルカプタンとが下式(2)のように
反応して脱臭すると考えられる。As a result, it is possible to directly irradiate the exposed portions of the TiO 2 particles 3 with ultraviolet rays from a lamp fixed to a wall or the like (not shown). Then, when the TiO 2 particles 3 are irradiated with ultraviolet rays, the adsorbed water reacts with the holes of the photocatalyst to generate hydroxyl radicals (OH * ), and the hydroxyl radicals and ammonia are expressed by the following formula (1). It is considered that the hydroxyl radical reacts with methyl mercaptan to react as shown in the following formula (2) to deodorize.
【0014】 NH3+3OH*→1/2N2+3H2O・・・・・・・・・・・(1) CH3SH+OH*→CH3S+H2O 2CH3S+2OH*+5O2→2CO2+4H2O+2SO2 ・・(2)NH 3 + 3OH * → 1 / 2N 2 + 3H 2 O (1) CH 3 SH + OH * → CH 3 S + H 2 O 2CH 3 S + 2OH * + 5O 2 → 2CO 2 + 4H 2 O + 2SO 2・ ・ (2)
【0015】図3はCH3SH濃度と経過時間との関係
を熱処理(焼成)温度毎に試験した結果を示すグラフで
あり、グラフ中τ1/10は濃度が1/10になるまでの時
間を示し、点線は紫外線を照射しない場合を示す。また
アナターゼ型TiO2粒子は平均粒径100Åのものを用
いた。FIG. 3 is a graph showing the test results of the relationship between the CH 3 SH concentration and the elapsed time for each heat treatment (firing) temperature. In the graph, τ 1/10 represents the time until the concentration becomes 1/10. The dotted line shows the case where no ultraviolet light is irradiated. The anatase type TiO 2 particles having an average particle diameter of 100 ° were used.
【0016】また、図4は熱処理温度と30分後の臭気
除去率との関係を実験した結果を示すグラフであり、図
5は平均粒径500Åのアナターゼ型TiO2を用いた場
合のCH3SH濃度と経過時間との関係(熱処理温度;
700℃)を示すグラフである。FIG. 4 is a graph showing the results of an experiment on the relationship between the heat treatment temperature and the odor removal rate after 30 minutes. FIG. 5 shows CH 3 when anatase type TiO 2 having an average particle diameter of 500 ° was used. Relationship between SH concentration and elapsed time (heat treatment temperature;
700 ° C.).
【0017】これら図3、図4及び図5から以下のこと
が言える。第1に紫外線の存在下においてアナターゼ型
TiO2は触媒作用を発揮する。第2に触媒作用は700
℃付近で最大値を示し、30分後の臭気除去率を50%
以上とするには300℃以上で900℃未満とする必要
がある。これは熱処理温度が300℃未満では活性が生
じにくく900℃を超えるとTiO2の構造がアナターゼ
からルチルに変化するからと考えられる。第3に触媒作
用は、粒径のある程度小さなアナターゼがよいことが分
る。The following can be said from FIG. 3, FIG. 4, and FIG. First, in the presence of ultraviolet light, anatase-type TiO 2 exerts a catalytic action. Second, the catalysis is 700
The maximum value is shown around ℃, and the odor removal rate after 30 minutes is 50%.
In order to achieve the above, it is necessary to set the temperature to 300 ° C. or higher and lower than 900 ° C. This is presumably because the activity is unlikely to occur when the heat treatment temperature is lower than 300 ° C, and the structure of TiO 2 changes from anatase to rutile when the heat treatment temperature exceeds 900 ° C. Third, it is understood that anatase having a small particle size is preferable for the catalytic action.
【0018】[0018]
【発明の効果】以上に説明した如く本発明によれば、離
型シート表面に第1のバインダ層を介して基材をけ、こ
の基材の第1のバインダ層とは反対側の表面に第2のバ
インダ層を介して光触媒粒を固定せしめたので、既存の
タイル等に光触媒効果を容易に付与することができる。
前記第2のバインダ層を光触媒機能によって分解されに
くい材料にて構成することで、バインダ層からの光触媒
粒粒子の欠落を防止することができる。As described above, according to the present invention, a base material is applied to the surface of the release sheet via the first binder layer, and the surface of the base material on the side opposite to the first binder layer is provided. Since the photocatalyst particles are fixed via the second binder layer, a photocatalytic effect can be easily imparted to an existing tile or the like.
When the second binder layer is made of a material that is not easily decomposed by the photocatalytic function, it is possible to prevent the photocatalyst particles from dropping out of the binder layer.
【図1】本発明に係る貼着用光触媒機能材の断面図FIG. 1 is a cross-sectional view of a photocatalytic functional material to be attached according to the present invention.
【図2】光触媒粒子の機能を説明した図FIG. 2 is a diagram illustrating functions of photocatalyst particles.
【図3】平均粒径100Åのアナターゼ型TiO2を用い
た場合の経過時間とCH3SH濃度との関係を示すグラ
フ。FIG. 3 is a graph showing the relationship between elapsed time and CH3SH concentration when anatase type TiO 2 having an average particle size of 100 ° is used.
【図4】熱処理温度と30分後の臭気除去率との関係を
示すグラフ。FIG. 4 is a graph showing a relationship between a heat treatment temperature and an odor removal rate after 30 minutes.
【図5】平均粒径500Åのアナターゼ型TiO2を用い
た場合の経過時間とCH3SH濃度との関係を示すグラ
フ。FIG. 5 is a graph showing the relationship between elapsed time and CH3SH concentration when anatase type TiO 2 having an average particle size of 500 ° is used.
【図6】従来の製造方法によって得られた光触媒機能を
有する部材の断面図。FIG. 6 is a cross-sectional view of a member having a photocatalytic function obtained by a conventional manufacturing method.
1…タイル素地、2…基材、3…TiO2粒子、4…イン
ク層、5…離型紙、6…水溶性バインダ、7…バインダ
層、S…シート、100…壁材、101…バインダ層、
102…光触媒粒子。REFERENCE SIGNS LIST 1 tile base, 2 base material, 3 TiO2 particles, 4 ink layer, 5 release paper, 6 water-soluble binder, 7 binder layer, S sheet, 100 wall material, 101 binder layer,
102 ... Photocatalyst particles.
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 FI B05D 3/02 B05D 5/00 H 5/00 7/24 303B 7/24 303 B32B 9/00 A B32B 9/00 B01D 53/36 H (72)発明者 小島 栄一 福岡県北九州市小倉北区中島2丁目1番1 号 東陶機器株式会社内 (72)発明者 佐伯 義光 福岡県北九州市小倉北区中島2丁目1番1 号 東陶機器株式会社内──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. 6 Identification code FI B05D 3/02 B05D 5/00 H 5/00 7/24 303B 7/24 303 B32B 9/00 A B32B 9/00 B01D 53 / 36 H (72) Inventor Eiichi Kojima 2-1-1 Nakajima, Kokurakita-ku, Kitakyushu-shi, Fukuoka Inside Totoki Equipment Co., Ltd. (72) Yoshimitsu Saeki 2-1-1 Nakajima, Kokurakita-ku, Kitakyushu-shi, Fukuoka Toto Kiki Co., Ltd.
Claims (3)
して基材が設けられ、この基材の第1のバインダ層とは
反対側の表面に第2のバインダ層を介して光触媒粒子が
固定されていることを特徴とする貼着用光触媒機能材。1. A base material is provided on a release sheet surface via a first binder layer, and photocatalyst particles are provided on a surface of the base material opposite to the first binder layer via a second binder layer. A photocatalytic functional material to be attached, characterized in that is fixed.
おいて、前記第2のバインダ層は光触媒機能によって分
解されにくい材料からなることを特徴とする貼着用光触
媒機能材。2. The sticking photocatalytic functional material according to claim 1, wherein the second binder layer is made of a material that is not easily decomposed by the photocatalytic function.
おいて、前記第2のバインダ層は基材側に設けられる下
層と外部に露出する上層からなり、下層は光触媒粒子を
含まず、上層は光触媒粒子を含み且つ光触媒機能によっ
て分解されにくい材料からなることを特徴とする貼着用
光触媒機能材。3. The photocatalytic functional material according to claim 1, wherein the second binder layer comprises a lower layer provided on the substrate side and an upper layer exposed to the outside, wherein the lower layer does not contain photocatalyst particles, Is a photocatalytic functional material to be attached, which is made of a material containing photocatalytic particles and hardly decomposed by the photocatalytic function.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10159669A JP3075261B2 (en) | 1998-06-08 | 1998-06-08 | Photocatalytic functional material to be attached |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10159669A JP3075261B2 (en) | 1998-06-08 | 1998-06-08 | Photocatalytic functional material to be attached |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9107605A Division JPH1071666A (en) | 1997-04-24 | 1997-04-24 | Member having photocatalytic function and its manufacture |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH1120067A true JPH1120067A (en) | 1999-01-26 |
JP3075261B2 JP3075261B2 (en) | 2000-08-14 |
Family
ID=15698755
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10159669A Expired - Lifetime JP3075261B2 (en) | 1998-06-08 | 1998-06-08 | Photocatalytic functional material to be attached |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP3075261B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2005068181A1 (en) * | 2004-01-16 | 2005-07-28 | Domo Oudenaarde Nv | Photocatalytic particles in floor laminates |
-
1998
- 1998-06-08 JP JP10159669A patent/JP3075261B2/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2005068181A1 (en) * | 2004-01-16 | 2005-07-28 | Domo Oudenaarde Nv | Photocatalytic particles in floor laminates |
Also Published As
Publication number | Publication date |
---|---|
JP3075261B2 (en) | 2000-08-14 |
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