JPH06170220A - Regenerable deodorizing material and production of the same - Google Patents
Regenerable deodorizing material and production of the sameInfo
- Publication number
- JPH06170220A JPH06170220A JP4324294A JP32429492A JPH06170220A JP H06170220 A JPH06170220 A JP H06170220A JP 4324294 A JP4324294 A JP 4324294A JP 32429492 A JP32429492 A JP 32429492A JP H06170220 A JPH06170220 A JP H06170220A
- Authority
- JP
- Japan
- Prior art keywords
- photocatalyst
- pores
- odorous components
- activated carbon
- deodorizing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000001877 deodorizing effect Effects 0.000 title claims abstract description 41
- 239000000463 material Substances 0.000 title claims abstract description 41
- 238000004519 manufacturing process Methods 0.000 title claims description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 45
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 36
- 239000011148 porous material Substances 0.000 claims abstract description 32
- 239000011941 photocatalyst Substances 0.000 claims abstract description 24
- 239000002781 deodorant agent Substances 0.000 claims description 14
- 229910010413 TiO 2 Inorganic materials 0.000 claims description 6
- 229910044991 metal oxide Inorganic materials 0.000 claims description 6
- 150000004706 metal oxides Chemical class 0.000 claims description 6
- 150000002736 metal compounds Chemical class 0.000 claims description 5
- 229910000000 metal hydroxide Inorganic materials 0.000 claims description 4
- 150000004692 metal hydroxides Chemical class 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 claims description 2
- 230000003301 hydrolyzing effect Effects 0.000 claims description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims 1
- 150000004703 alkoxides Chemical class 0.000 claims 1
- 239000010419 fine particle Substances 0.000 claims 1
- 238000010304 firing Methods 0.000 claims 1
- 230000007062 hydrolysis Effects 0.000 claims 1
- 238000006460 hydrolysis reaction Methods 0.000 claims 1
- 150000003839 salts Chemical class 0.000 claims 1
- 239000010936 titanium Substances 0.000 claims 1
- 229910052719 titanium Inorganic materials 0.000 claims 1
- 238000004332 deodorization Methods 0.000 abstract description 7
- 239000002245 particle Substances 0.000 abstract description 7
- 229910052799 carbon Inorganic materials 0.000 abstract 1
- IKHGUXGNUITLKF-UHFFFAOYSA-N Acetaldehyde Chemical compound CC=O IKHGUXGNUITLKF-UHFFFAOYSA-N 0.000 description 10
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical class C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 10
- VXUYXOFXAQZZMF-UHFFFAOYSA-N titanium(IV) isopropoxide Chemical compound CC(C)O[Ti](OC(C)C)(OC(C)C)OC(C)C VXUYXOFXAQZZMF-UHFFFAOYSA-N 0.000 description 10
- 238000000034 method Methods 0.000 description 8
- 238000001179 sorption measurement Methods 0.000 description 8
- 230000008929 regeneration Effects 0.000 description 7
- 238000011069 regeneration method Methods 0.000 description 7
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 239000011521 glass Substances 0.000 description 5
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 4
- 238000001914 filtration Methods 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 229910002092 carbon dioxide Inorganic materials 0.000 description 3
- 239000001569 carbon dioxide Substances 0.000 description 3
- 238000000354 decomposition reaction Methods 0.000 description 3
- 229920006395 saturated elastomer Polymers 0.000 description 3
- 230000000274 adsorptive effect Effects 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000007935 neutral effect Effects 0.000 description 2
- DCKVFVYPWDKYDN-UHFFFAOYSA-L oxygen(2-);titanium(4+);sulfate Chemical compound [O-2].[Ti+4].[O-]S([O-])(=O)=O DCKVFVYPWDKYDN-UHFFFAOYSA-L 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- LLZRNZOLAXHGLL-UHFFFAOYSA-J titanic acid Chemical compound O[Ti](O)(O)O LLZRNZOLAXHGLL-UHFFFAOYSA-J 0.000 description 2
- 229910000348 titanium sulfate Inorganic materials 0.000 description 2
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 238000002441 X-ray diffraction Methods 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 238000005273 aeration Methods 0.000 description 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-N ammonia Natural products N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000009841 combustion method Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- -1 titania (TiO 2 ) Chemical class 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、活性炭を基材とする脱
臭材およびその製造方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a deodorizing material based on activated carbon and a method for producing the deodorizing material.
【０００２】[0002]
【従来の技術】脱臭法としては、薬液洗浄法、直接燃焼
法、触媒酸化法、生物脱臭法、吸着脱臭法等、種々の方
法があり、このうち一般的に最も多く利用されているの
は活性炭を用いた吸着脱臭法である。これは、活性炭が
酸性、塩基性、中性を問わず種々の臭気成分に対して幅
広く吸着・除去する能力を有する特質を利用したもので
ある。2. Description of the Related Art Deodorizing methods include various methods such as a chemical cleaning method, a direct combustion method, a catalytic oxidation method, a biological deodorizing method, and an adsorptive deodorizing method. Among them, the most widely used method is generally used. It is an adsorption deodorization method using activated carbon. This utilizes the characteristic that activated carbon has the ability to widely adsorb and remove various odorous components regardless of whether they are acidic, basic or neutral.
【０００３】しかし、活性炭は臭気成分を吸着するに伴
いその吸着能力が徐々に低下していき、飽和吸着量に達
すると吸着脱臭能力は失われてしまうという限界があ
る。最近、この飽和吸着量を増大させるために、各種の
添着型活性炭が開発されているが、脱臭作用が有効な使
用可能時間をある程度長くすることはできるものの、や
はり飽和吸着量に達すると脱臭能力を失うことは避けら
れない。However, activated carbon has a limit in that its adsorption capacity gradually decreases as it adsorbs odorous components, and when it reaches a saturated adsorption amount, its adsorptive deodorizing capacity is lost. Recently, various types of impregnated activated carbon have been developed in order to increase the saturated adsorption amount. However, although the deodorization effect can be used for a certain period of time, the deodorizing ability is still reached. Losing is inevitable.
【０００４】[0004]
【発明が解決しようとする課題】本発明は、上記従来の
活性炭を基材とする脱臭材の限界を克服し、長時間にわ
たり安定した脱臭作用を維持し且つ脱臭作用がほぼ完全
に回復可能な、再生可能な脱臭材およびその製造方法を
提供することを目的とする。DISCLOSURE OF THE INVENTION The present invention overcomes the limitations of the conventional deodorizing materials based on activated carbon, maintains a stable deodorizing effect for a long time, and is capable of recovering the deodorizing effect almost completely. , A reproducible deodorant and a method for producing the same.
【０００５】[0005]
【課題を解決するための手段】上記の目的は、本発明に
よれば、活性炭の外表面と外表面に開口した細孔内とに
光触媒を担持させ、光照射下且つ臭気成分の存在下では
外表面の光触媒により臭気成分を直接分解しながら細孔
内の光触媒により臭気成分を吸着し、光照射下且つ臭気
成分の不在下では上記吸着された臭気成分を細孔内の光
触媒により分解するようにしたことを特徴とする再生可
能な脱臭材によって達成される。According to the present invention, the above-mentioned object is to carry a photocatalyst on the outer surface of activated carbon and in the pores opened on the outer surface, and under photoirradiation and in the presence of odorous components. While the odor component is directly decomposed by the photocatalyst on the outer surface, the odor component is adsorbed by the photocatalyst in the pores, and the photocatalyst in the pores decomposes the adsorbed odor component under light irradiation and in the absence of the odor component. It is achieved by a renewable deodorizing material characterized by
【０００６】本発明の再生可能な脱臭材を製造する方法
は、酸化物が光触媒として作用する金属の加水分解可能
な化合物の溶液を作成する工程、外表面に開口した細孔
を有する活性炭を上記溶液と接触させることにより上記
外表面および上記細孔内に上記金属化合物を付着させる
工程、上記付着した金属化合物を加水分解して金属水酸
化物とする工程、および上記金属水酸化物を焼成するこ
とにより上記外表面および上記細孔内に上記光触媒とし
ての金属酸化物を担持させる工程を含むことを特徴とす
る。The method for producing a reproducible deodorant of the present invention comprises the steps of preparing a solution of a metal hydrolyzable compound in which an oxide acts as a photocatalyst, and the activated carbon having open pores on the outer surface thereof. A step of adhering the metal compound to the outer surface and the pores by contacting with a solution, a step of hydrolyzing the adhering metal compound into a metal hydroxide, and baking the metal hydroxide. Thus, a step of supporting the metal oxide as the photocatalyst on the outer surface and the pores is included.
【０００７】[0007]
【作用】本発明の脱臭材は、光照射下且つ臭気成分の存
在下では外表面の光触媒により臭気成分を直接分解しな
がら細孔内の光触媒により臭気成分を吸着することによ
り長時間にわたり安定した脱臭作用を維持し、光照射下
且つ臭気成分の不在下では上記吸着された臭気成分を細
孔内の光触媒により分解することにより脱臭作用を回復
させることができる。The deodorant material of the present invention is stable for a long period of time under the irradiation of light and in the presence of an odor component, by directly decomposing the odor component by the photocatalyst on the outer surface and adsorbing the odor component by the photocatalyst in the pores. The deodorizing action can be maintained, and the deodorizing action can be recovered by decomposing the adsorbed odorous component by the photocatalyst in the pores under light irradiation and in the absence of the odorous component.
【０００８】本発明に用いる光触媒としてはチタニア
（ＴｉＯ2 ）、ＷＯ3 、Ｆｅ2 Ｏ3 等の金属酸化物が脱
臭材の製造上簡便でありまた使用上安定性が高い。臭気
成分に対する吸着および分解作用の観点から特にＴｉＯ
2 が優れている。また本発明の脱臭材の基材部分を構成
する活性炭は、外表面に開口した細孔を有する状態であ
れば良く、形態的には粒状、繊維状等、通常容易に入手
可能の形で良い。臭気成分の不在下で光照射により行う
脱臭作用回復作用をできるだけ効果的にするには、外表
面に直接開口した細孔数をできるだけ多くすることが有
利である。As the photocatalyst used in the present invention, metal oxides such as titania (TiO 2 ), WO 3 and Fe 2 O 3 are simple in production of the deodorant and have high stability in use. TiO 2 from the viewpoint of adsorption and decomposition of odorous components
2 is better. The activated carbon constituting the base material portion of the deodorizing material of the present invention may be in a state having pores opened on the outer surface, and may be in a form such as granular or fibrous, which is usually easily available. . In order to maximize the effect of recovering the deodorizing effect performed by irradiation with light in the absence of odorous components, it is advantageous to increase the number of pores directly opened to the outer surface as much as possible.
【０００９】以下に、添付図面を参照して、実施例によ
り本発明を更に詳細に説明する。The present invention will now be described in more detail by way of examples with reference to the accompanying drawings.
【００１０】[0010]
〔実施例１〕活性炭素繊維１００ｇをチタンイソプロポ
キシドのエタノール溶液（濃度１．０モル／リットル）
２．０リットル中に均一に分散させ、２時間浸漬させた
後、ガラスフィルタを用いて濾別分離を行い、チタンイ
ソプロポキシドが外表面および細孔内に付着した活性炭
素繊維を得た。[Example 1] 100 g of activated carbon fiber was dissolved in an ethanol solution of titanium isopropoxide (concentration: 1.0 mol / liter).
After uniformly dispersing it in 2.0 liters and immersing it for 2 hours, it was separated by filtration using a glass filter to obtain activated carbon fibers having titanium isopropoxide attached on the outer surface and in the pores.
【００１１】次に、水溶液中でチタンイソプロポキシド
を加水分解して水酸化チタンとした後、１１０℃で５時
間乾燥してから、３００℃で３時間焼成を行い、活性炭
素繊維の外表面および細孔内にチタニア（ＴｉＯ2 ）を
担持した脱臭材を得た。担持されているチタニア量をＸ
線回折により求めたところ、外表面が６．９wt％、細孔
内が５．７wt％であった。Next, titanium isopropoxide is hydrolyzed into titanium hydroxide in an aqueous solution, dried at 110 ° C. for 5 hours, and then calcined at 300 ° C. for 3 hours to form an outer surface of the activated carbon fiber. And a deodorizing material carrying titania (TiO 2 ) in the pores was obtained. The amount of titania carried is X
As determined by line diffraction, the outer surface was 6.9 wt% and the inside of the pores was 5.7 wt%.
【００１２】この脱臭材の脱臭性能を紫外線照射下で測
定した結果を図１に示す。同図には、比較のために従来
の添着型活性炭素繊維の結果も併せて示してある。図１
の結果から、従来の脱臭材は臭気ガスのアセトアルデヒ
ドの吸着が進むに従い、除去率が次第に低下し３時間後
には開始時の５０％程度にまで劣化しているのに対し、
本発明の脱臭材は同じ時間経過に対して除去率は開始時
の８０％以上を安定して維持していることが分かる。FIG. 1 shows the result of measuring the deodorizing performance of this deodorizing material under irradiation of ultraviolet rays. For comparison, the figure also shows the results of the conventional impregnated activated carbon fiber. Figure 1
From the results of the above, while the conventional deodorizing material gradually decreases in removal rate as the adsorption of acetaldehyde in the odorous gas progresses and deteriorates to about 50% of the start after 3 hours,
It can be seen that the deodorant material of the present invention stably maintains the removal rate of 80% or more at the start for the same time.
【００１３】これとは別に、本発明および従来の脱臭材
について、飽和吸着量の約２０％（５．０×１０-6モ
ル）までバッチ式で吸着させた後、エアー通気下で紫外
線を照射しながら、吸着されたアセトアルデヒドの分解
による炭酸ガス発生量を測定した。図２に紫外線照射時
間と発生した炭酸ガス濃度との関係を示す。炭酸ガスの
発生量からアセトアルデヒドの分解量を求め、これに基
づいて再生率を計算したところ、本発明の脱臭材につい
ては再生率９８％であり、吸着されたアセトアルデヒド
のほぼ全量が分解されていることが分かった。Separately, the deodorizing materials of the present invention and the conventional deodorizing material were batch-adsorbed up to about 20% (5.0 × 10 −6 mol) of the saturated adsorption amount, and then irradiated with ultraviolet rays under aeration of air. Meanwhile, the amount of carbon dioxide gas generated by the decomposition of adsorbed acetaldehyde was measured. FIG. 2 shows the relationship between the ultraviolet irradiation time and the generated carbon dioxide gas concentration. When the decomposition amount of acetaldehyde was obtained from the generated amount of carbon dioxide and the regeneration rate was calculated based on this, the regeneration rate of the deodorant material of the present invention was 98%, and almost all of the adsorbed acetaldehyde was decomposed. I found out.
【００１４】また、活性炭の外表面にのみチタニアを担
持させた従来材についても同様な試験を行った結果、細
孔内にチタニアが担持されていないため細孔内の吸着さ
れたアセトアルデヒドはチタニアにより光分解されるこ
とがなくエアー通気により徐々にパージされるだけなの
で、吸着脱臭作用の回復に極めて長時間を要し、所定時
間での再生率は１０％であり、実用的な再生率は得られ
ず、実際の使用には適さないことが分かった。図３
（ａ）に本発明に従い活性炭３１の外表面３２および外
表面３２に開口する細孔３３内に光触媒としてのチタニ
ア３４を担持させた場合、同図（ｂ）に外表面３２にの
みチタニア３４を担持させた比較材の場合を模式的に示
した。同図中３５は臭気成分の粒子である。A similar test was conducted on a conventional material in which titania was supported only on the outer surface of the activated carbon. As a result, since titania was not supported in the pores, the adsorbed acetaldehyde in the pores was converted to titania. Since it is not photodecomposed and is gradually purged by air ventilation, it takes an extremely long time to recover the adsorption and deodorization action, and the regeneration rate at a predetermined time is 10%, which is a practical regeneration rate. It was found that it was not suitable for actual use. Figure 3
When the titania 34 as a photocatalyst is carried in the outer surface 32 of the activated carbon 31 and the pores 33 opening to the outer surface 32 according to the present invention in (a), the titania 34 is supported only on the outer surface 32 in the same figure (b). The case of the supported comparative material is schematically shown. In the figure, reference numeral 35 denotes particles of an odor component.
【００１５】なお、本発明の脱臭材は当然のことながら
適当な光照射下で用いることによりその効果が得られ
る。上記で作製した脱臭材について紫外線照射なしで使
用すると、図４に示すようにほぼ従来材と同等の脱臭性
能が得られるのみである。The effect of the deodorant material of the present invention can of course be obtained by using it under appropriate light irradiation. When the deodorizing material produced above is used without being irradiated with ultraviolet rays, as shown in FIG. 4, the deodorizing performance is almost the same as that of the conventional material.
【００１６】〔実施例２〕粒状活性炭１００ｇをチタン
イソプロポキシドのエタノール溶液（濃度２．０モル／
リットル）１．０リットル中に均一に分散させ、２時間
浸漬させた後、ガラスフィルタを用いて濾別分離を行
い、チタンイソプロポキシドが外表面および細孔内に付
着した粒状活性炭を得た。Example 2 100 g of granular activated carbon was added to an ethanol solution of titanium isopropoxide (concentration: 2.0 mol / mol).
(1 liter), uniformly dispersed in 1.0 liter, and immersed for 2 hours, and then separated by filtration using a glass filter to obtain granular activated carbon having titanium isopropoxide attached on the outer surface and in the pores. .
【００１７】その後の処理は実施例１と同様に行い、粒
状活性炭の外表面および細孔内にチタニア（ＴｉＯ2 ）
を担持した脱臭材を得た。担持されているチタニア量を
Ｘ線回折により求めたところ、外表面が７．１wt％、細
孔内が６．２wt％であった。脱臭性能は実施例１の活性
炭素繊維と同等であった。また再生率は９６％であっ
た。Subsequent treatment was carried out in the same manner as in Example 1, and titania (TiO 2 ) was formed on the outer surface and pores of the granular activated carbon.
Thus, a deodorizing material carrying was obtained. When the amount of supported titania was determined by X-ray diffraction, the outer surface was 7.1 wt% and the inside of the pores was 6.2 wt%. The deodorizing performance was equivalent to that of the activated carbon fiber of Example 1. The regeneration rate was 96%.
【００１８】〔実施例３〕活性炭素繊維１００ｇを濃度
３０％の硫酸チタン水溶液２．０リットル中に均一に分
散させ、３時間浸漬させた後、ガラスフィルタを用いて
濾別分離を行い、得られた活性炭素繊維を１７％のアン
モニア水２．０リットル中に浸漬させることにより硫酸
チタンを加水分解して水酸化チタンとした。その後、Ｐ
Ｈ値が中性になるまで２〜３回水洗し、濾別分離を行っ
た後、１１０℃で５時間乾燥し、３５０℃で３時間焼成
を行い、チタニアを外表面および細孔内に担持した活性
炭素繊維から成る脱臭材を得た。Example 3 100 g of activated carbon fiber was uniformly dispersed in 2.0 liter of a 30% titanium sulfate aqueous solution and immersed for 3 hours, and then separated by filtration using a glass filter to obtain The activated carbon fiber thus obtained was immersed in 2.0 liters of 17% aqueous ammonia to hydrolyze titanium sulfate to obtain titanium hydroxide. Then P
After washing with water 2 to 3 times until the H value becomes neutral, the mixture is separated by filtration, dried at 110 ° C. for 5 hours, and calcined at 350 ° C. for 3 hours to carry titania on the outer surface and in the pores. A deodorizing material composed of the activated carbon fiber was obtained.
【００１９】実施例１と同様な脱臭性能および再生率が
得られた。本発明の脱臭材は、例えば活性炭素繊維を基
材とする場合、図５に示すように活性炭素繊維ペーパ５
１の形に形成し、これを補強紙５２およびガラスペーパ
５３と積層して一体化したものを、例えば屏風状５４に
折り曲げ、その上に紫外線ランプ５５を配した形で用い
ることができる。The same deodorizing performance and regeneration rate as in Example 1 were obtained. When the deodorizing material of the present invention uses, for example, activated carbon fiber as a base material, activated carbon fiber paper 5 is used as shown in FIG.
It is possible to use it by forming it in the shape of 1 and stacking it with the reinforcing paper 52 and the glass paper 53 and integrating them, for example, folding them into a folding screen shape 54, and disposing the ultraviolet lamp 55 thereon.
【００２０】[0020]
【発明の効果】以上説明したように、本発明によれば、
長時間にわたり安定した脱臭作用を維持し且つ脱臭作用
がほぼ完全に回復可能な、活性炭を基材とする再生可能
な脱臭材を得ることができる。As described above, according to the present invention,
It is possible to obtain a reproducible deodorant material having activated carbon as a base material, which maintains a stable deodorization effect for a long time and is capable of almost completely recovering the deodorization effect.
【図１】本発明の脱臭材の脱臭性能の経時変化を従来の
脱臭材と比較して示すグラフである。FIG. 1 is a graph showing changes over time in the deodorizing performance of the deodorizing material of the present invention in comparison with conventional deodorizing materials.
【図２】本発明の脱臭材の再生率を従来の脱臭材と比較
して示すグラフである。FIG. 2 is a graph showing the regeneration rate of the deodorizing material of the present invention in comparison with the conventional deodorizing material.
【図３】光触媒の担持状況を模式的に示す断面図であ
る。FIG. 3 is a cross-sectional view schematically showing how a photocatalyst is supported.
【図４】光照射なしの場合の脱臭性能の経時変化を示す
グラフである。FIG. 4 is a graph showing changes with time in deodorizing performance without light irradiation.
【図５】本発明の脱臭材の実際の適用例を示す断面図
（ａ）および斜視図（ｂ），（ｃ）である。FIG. 5 is a cross-sectional view (a) and perspective views (b) and (c) showing an actual application example of the deodorizing material of the present invention.
３１…脱臭材の基材を成す活性炭 ３２…活性炭３１の外表面 ３３…活性炭３１の細孔 ３４…光触媒としてのチタニア ３５…臭気成分の粒子 ５１…活性炭素繊維ペーパ ５２…補強紙 ５３…ガラスペーパ ５４…屏風状に折り曲げた積層体 ５５…紫外線ランプ 31 ... Activated carbon forming a base material for deodorizing material 32 ... Outer surface of activated carbon 31 33 ... Pores of activated carbon 31 34 ... Titania as photocatalyst 35 ... Odor component particles 51 ... Activated carbon fiber paper 52 ... Reinforcing paper 53 ... Glass paper 54 ... Laminated body folded in a folding screen 55 ... UV lamp
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.5 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｂ０１Ｊ 21/18 ＺＡＢ Ａ 8017−4Ｇ 35/02 ＺＡＢ Ｊ 7821−4Ｇ (72)発明者 門脇 覚 愛知県刈谷市昭和町１丁目１番地 日本電 装株式会社内─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 5 Identification code Internal reference number FI Technical display location B01J 21/18 ZAB A 8017-4G 35/02 ZAB J 7821-4G (72) Inventor Kadowaki Kaku Aichi 1-1, Showa-cho, Kariya city, Nihon Denso Co., Ltd.
Claims (7)
内とに光触媒を担持させ、光照射下且つ臭気成分の存在
下では外表面の光触媒により臭気成分を直接分解しなが
ら細孔内の光触媒により臭気成分を吸着し、光照射下且
つ臭気成分の不在下では上記吸着された臭気成分を細孔
内の光触媒により分解するようにしたことを特徴とする
再生可能な脱臭材。1. A photocatalyst is supported on the outer surface of activated carbon and in the pores opened on the outer surface, and under light irradiation and in the presence of odorous components, the odorous components are directly decomposed by the photocatalyst on the outer surface and inside the pores. A reproducible deodorant material characterized in that an odor component is adsorbed by the photocatalyst, and the adsorbed odor component is decomposed by the photocatalyst in the pores under light irradiation and in the absence of the odor component.
とを特徴とする請求項１記載の再生可能な脱臭材。2. The reproducible deodorant material according to claim 1, wherein a metal oxide is used as the photocatalyst.
であることを特徴とする請求項２記載の再生可能な脱臭
材。3. The metal oxide is titania (TiO 2 ).
The reproducible deodorant material according to claim 2, wherein
とを特徴とする請求項１記載の再生可能な脱臭材。4. The renewable deodorizing material according to claim 1, wherein the activated carbon is granular or fibrous.
水分解可能な化合物の溶液を作成する工程、 外表面に開口した細孔を有する活性炭を上記溶液と接触
させることにより上記外表面および上記細孔内に上記金
属化合物を付着させる工程、 上記付着した金属化合物を加水分解して金属水酸化物と
する工程、および上記金属水酸化物を焼成することによ
り上記外表面および上記細孔内に上記光触媒としての金
属酸化物を担持させる工程を含むことを特徴とする再生
可能な脱臭材の製造方法。5. A step of preparing a solution of a metal hydrolyzable compound in which an oxide acts as a photocatalyst, wherein activated carbon having open pores on the outer surface is brought into contact with the solution to form the outer surface and the fine particles. A step of adhering the metal compound in the pores, a step of hydrolyzing the adhering metal compound to a metal hydroxide, and a step of baking the metal hydroxide to form the metal oxide in the outer surface and the pores. A method for producing a reproducible deodorant material, comprising a step of supporting a metal oxide as a photocatalyst.
ルコキシドまたは塩を用いることを特徴とする請求項５
記載の再生可能な脱臭材の製造方法。6. The alkoxide or salt is used as the hydrolyzable metal compound.
A method for producing the reproducible deodorant material described.
加水分解工程および焼成工程により、前記外表面および
前記細孔内にチタニア（ＴｉＯ2 ）から成る光触媒を担
持させることを特徴とする請求項５記載の再生可能な脱
臭材の製造方法。7. The adhesion step, wherein the metal is titanium
The method for producing a reproducible deodorant according to claim 5, wherein a photocatalyst made of titania (TiO 2 ) is supported on the outer surface and the pores by the hydrolysis step and the firing step.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4324294A JPH06170220A (en) | 1992-12-03 | 1992-12-03 | Regenerable deodorizing material and production of the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4324294A JPH06170220A (en) | 1992-12-03 | 1992-12-03 | Regenerable deodorizing material and production of the same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH06170220A true JPH06170220A (en) | 1994-06-21 |
Family
ID=18164201
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4324294A Pending JPH06170220A (en) | 1992-12-03 | 1992-12-03 | Regenerable deodorizing material and production of the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH06170220A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6265341B1 (en) * | 1996-09-20 | 2001-07-24 | Teruo Komatsu | Highly functional base material and a method of manufacturing the same |
| JP2005052713A (en) * | 2003-08-01 | 2005-03-03 | Kazuo Miyatani | Carbon fiber supported porous titanium oxide photocatalyst and filter |
| JP2005296766A (en) * | 2004-04-09 | 2005-10-27 | Tohoku Ricoh Co Ltd | Production method of photocatalytic functional material |
| JP2006198591A (en) * | 2005-01-24 | 2006-08-03 | Tosoh Corp | New catalytic structure containing metal oxide and its manufacturing method |
| CN105688875A (en) * | 2016-01-11 | 2016-06-22 | 湖南大学 | TiO2-loaded biochar composite material and preparation method and application thereof |
-
1992
- 1992-12-03 JP JP4324294A patent/JPH06170220A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6265341B1 (en) * | 1996-09-20 | 2001-07-24 | Teruo Komatsu | Highly functional base material and a method of manufacturing the same |
| JP2005052713A (en) * | 2003-08-01 | 2005-03-03 | Kazuo Miyatani | Carbon fiber supported porous titanium oxide photocatalyst and filter |
| JP2005296766A (en) * | 2004-04-09 | 2005-10-27 | Tohoku Ricoh Co Ltd | Production method of photocatalytic functional material |
| JP4573560B2 (en) * | 2004-04-09 | 2010-11-04 | 東北リコー株式会社 | Photocatalytic functional material production method and photocatalytic functional material produced by this method |
| JP2006198591A (en) * | 2005-01-24 | 2006-08-03 | Tosoh Corp | New catalytic structure containing metal oxide and its manufacturing method |
| CN105688875A (en) * | 2016-01-11 | 2016-06-22 | 湖南大学 | TiO2-loaded biochar composite material and preparation method and application thereof |
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