JP3075261B2 - Photocatalytic functional material to be attached - Google Patents
Photocatalytic functional material to be attachedInfo
- Publication number
- JP3075261B2 JP3075261B2 JP10159669A JP15966998A JP3075261B2 JP 3075261 B2 JP3075261 B2 JP 3075261B2 JP 10159669 A JP10159669 A JP 10159669A JP 15966998 A JP15966998 A JP 15966998A JP 3075261 B2 JP3075261 B2 JP 3075261B2
- Authority
- JP
- Japan
- Prior art keywords
- binder layer
- photocatalyst
- particles
- tio
- base 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.)
- Expired - Lifetime
Links
- 239000000463 material Substances 0.000 title claims description 16
- 230000001699 photocatalysis Effects 0.000 title description 10
- 239000002245 particle Substances 0.000 claims description 24
- 239000011230 binding agent Substances 0.000 claims description 22
- 239000011941 photocatalyst Substances 0.000 claims description 19
- 238000000034 method Methods 0.000 claims description 3
- 239000003232 water-soluble binding agent Substances 0.000 claims description 3
- 239000002023 wood Substances 0.000 claims 1
- 229910010413 TiO 2 Inorganic materials 0.000 description 14
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 12
- 238000010438 heat treatment Methods 0.000 description 5
- LSDPWZHWYPCBBB-UHFFFAOYSA-N Methanethiol Chemical compound SC LSDPWZHWYPCBBB-UHFFFAOYSA-N 0.000 description 4
- 230000001877 deodorizing effect Effects 0.000 description 3
- 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
- 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
- 239000000758 substrate Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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】前記光触媒粒子はその一部が露出した状態
で固定され、一部が埋設していることで、光触媒層の機
械的強度が向上する。 The photocatalyst particles are partially exposed.
Is fixed with a part of the photocatalyst layer.
The mechanical strength is improved.
【０００７】[0007]
【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, 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】[0010]
【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 that the temperature be 300 ° C. or more and less than 900 ° C. This is presumably because the activity hardly occurs when the heat treatment temperature is lower than 300 ° C., and when it exceeds 900 ° C., the structure of TiO 2 changes from anatase to rutile. Thirdly, it can be seen that the anatase having a small particle size is good 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。
前記光触媒粒子はその一部が露出した状態で固定され、
一部が埋設していることで、光触媒層の機械的強度が向
上する。 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.
The photocatalyst particles are fixed in a state where a part thereof is exposed,
By partially burying it, the mechanical strength of the photocatalyst layer is improved.
Up.
【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.7 識別記号 ＦＩ Ｂ０５Ｄ 3/02 Ｂ０５Ｄ 5/00 Ｈ 5/00 7/24 ３０３Ｂ 7/24 ３０３ Ｂ０１Ｄ 53/36 Ｈ (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 (56)参考文献 特開 平５−253544（ＪＰ，Ａ) (58)調査した分野(Int.Cl.7，ＤＢ名) B32B 1/00 - 35/00 ────────────────────────────────────────────────── ─── Continued on the front page (51) Int.Cl. 7 Identification symbol FI B05D 3/02 B05D 5/00 H 5/00 7/24 303B 7/24 303 B01D 53/36 H (72) Inventor Yoshimitsu Saeki 2-1-1 Nakajima, Kokurakita-ku, Kitakyushu-shi, Fukuoka Toho Kiki Co., Ltd. (56) References JP-A-5-253544 (JP, A) (58) Fields investigated (Int. Cl. 7 , DB Name) B32B 1/00-35/00
Claims (2)
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そ
の一部を露出するように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. but their
Characterized in that it is fixed so as to expose a part of the photocatalyst functional material.
により形成されてなる請求項１記載の貼着用光触媒機能
材。 2. The method according to claim 1, wherein the first binder layer comprises a water-soluble binder.
2. The sticking photocatalyst function according to claim 1, which is formed by:
Wood.
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 JPH1120067A (en) | 1999-01-26 |
| JP3075261B2 true 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) |
Families Citing this family (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
Also Published As
| Publication number | Publication date |
|---|---|
| JPH1120067A (en) | 1999-01-26 |
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