JP2001087628A - Filter having photocatalytic capacity - Google Patents
Filter having photocatalytic capacityInfo
- Publication number
- JP2001087628A JP2001087628A JP27165599A JP27165599A JP2001087628A JP 2001087628 A JP2001087628 A JP 2001087628A JP 27165599 A JP27165599 A JP 27165599A JP 27165599 A JP27165599 A JP 27165599A JP 2001087628 A JP2001087628 A JP 2001087628A
- Authority
- JP
- Japan
- Prior art keywords
- filter
- titanium oxide
- oxide photocatalyst
- photocatalytic
- photocatalyst
- 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
- 230000001699 photocatalysis Effects 0.000 title claims abstract description 19
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 46
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims abstract description 42
- 239000011941 photocatalyst Substances 0.000 claims abstract description 35
- 239000000853 adhesive Substances 0.000 claims abstract description 16
- 230000001070 adhesive effect Effects 0.000 claims abstract description 16
- 230000001678 irradiating effect Effects 0.000 abstract description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 8
- 239000000741 silica gel Substances 0.000 description 8
- 229910002027 silica gel Inorganic materials 0.000 description 8
- 239000000835 fiber Substances 0.000 description 6
- 239000002245 particle Substances 0.000 description 6
- 239000008187 granular material Substances 0.000 description 5
- 239000013078 crystal Substances 0.000 description 4
- 230000001877 deodorizing effect Effects 0.000 description 4
- 239000003344 environmental pollutant Substances 0.000 description 4
- 239000011521 glass Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 235000019645 odor Nutrition 0.000 description 4
- 231100000719 pollutant Toxicity 0.000 description 4
- 239000011148 porous material Substances 0.000 description 4
- 238000000746 purification Methods 0.000 description 4
- 238000002441 X-ray diffraction Methods 0.000 description 3
- 229910021536 Zeolite Inorganic materials 0.000 description 3
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 3
- 239000011236 particulate material Substances 0.000 description 3
- 239000004065 semiconductor Substances 0.000 description 3
- 239000010457 zeolite Substances 0.000 description 3
- IKHGUXGNUITLKF-UHFFFAOYSA-N Acetaldehyde Chemical compound CC=O IKHGUXGNUITLKF-UHFFFAOYSA-N 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 2
- 229920002558 Curdlan Polymers 0.000 description 2
- 239000001879 Curdlan Substances 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 2
- 239000004113 Sepiolite Substances 0.000 description 2
- 239000003463 adsorbent Substances 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- WQZGKKKJIJFFOK-VFUOTHLCSA-N beta-D-glucose Chemical compound OC[C@H]1O[C@@H](O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-VFUOTHLCSA-N 0.000 description 2
- 238000004061 bleaching Methods 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 239000004927 clay Substances 0.000 description 2
- 229940078035 curdlan Drugs 0.000 description 2
- 235000019316 curdlan Nutrition 0.000 description 2
- 238000001723 curing Methods 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- GUJOJGAPFQRJSV-UHFFFAOYSA-N dialuminum;dioxosilane;oxygen(2-);hydrate Chemical compound O.[O-2].[O-2].[O-2].[Al+3].[Al+3].O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O GUJOJGAPFQRJSV-UHFFFAOYSA-N 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 239000000975 dye Substances 0.000 description 2
- 229910052736 halogen Inorganic materials 0.000 description 2
- 150000002367 halogens Chemical class 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 2
- 229910052753 mercury Inorganic materials 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910001507 metal halide Inorganic materials 0.000 description 2
- 150000005309 metal halides Chemical class 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 229910052901 montmorillonite Inorganic materials 0.000 description 2
- 239000003960 organic solvent Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 239000000123 paper Substances 0.000 description 2
- 239000000575 pesticide Substances 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 229910052624 sepiolite Inorganic materials 0.000 description 2
- 235000019355 sepiolite Nutrition 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229920002994 synthetic fiber Polymers 0.000 description 2
- 239000012209 synthetic fiber Substances 0.000 description 2
- 229910052724 xenon Inorganic materials 0.000 description 2
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 description 2
- OVSGBKZKXUMMHS-VGKOASNMSA-L (z)-4-oxopent-2-en-2-olate;propan-2-olate;titanium(4+) Chemical compound [Ti+4].CC(C)[O-].CC(C)[O-].C\C([O-])=C\C(C)=O.C\C([O-])=C\C(C)=O OVSGBKZKXUMMHS-VGKOASNMSA-L 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 102100033040 Carbonic anhydrase 12 Human genes 0.000 description 1
- 102100033041 Carbonic anhydrase 13 Human genes 0.000 description 1
- 102100032566 Carbonic anhydrase-related protein 10 Human genes 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 101000867855 Homo sapiens Carbonic anhydrase 12 Proteins 0.000 description 1
- 101000867860 Homo sapiens Carbonic anhydrase 13 Proteins 0.000 description 1
- 101000867836 Homo sapiens Carbonic anhydrase-related protein 10 Proteins 0.000 description 1
- 239000004831 Hot glue Substances 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 244000061176 Nicotiana tabacum Species 0.000 description 1
- 235000002637 Nicotiana tabacum Nutrition 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 235000010724 Wisteria floribunda Nutrition 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 238000004887 air purification Methods 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 239000000227 bioadhesive Substances 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000004332 deodorization Methods 0.000 description 1
- 238000001784 detoxification Methods 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010894 electron beam technology Methods 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 238000013032 photocatalytic reaction Methods 0.000 description 1
- 230000001443 photoexcitation Effects 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 238000005488 sandblasting Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 239000013464 silicone adhesive Substances 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/30—Wastewater or sewage treatment systems using renewable energies
- Y02W10/37—Wastewater or sewage treatment systems using renewable energies using solar energy
Landscapes
- Physical Water Treatments (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Catalysts (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、合成繊維、天然繊
維、繊維状活性炭素繊維、活性炭、紙、プラスチック、
ガラス、セラミックスまたは金属などからなるフィルタ
ーに、光触媒能を有する粒状品を接着剤により固定する
ことにより、脱臭あるいは有害汚染物質の無害化、環境
におけるNOＸの除去、染色排水の脱色、水の浄化などを
行うことができる光触媒能を有するフィルターに関する
ものである。The present invention relates to synthetic fibers, natural fibers, fibrous activated carbon fibers, activated carbon, paper, plastic,
Glass, a filter made of ceramic or metal, by fixing with an adhesive granular product having a photocatalytic activity, deodorizing or detoxifying harmful pollutants, removal of the NO X in the environment, bleaching of stained drainage, water purification The present invention relates to a filter having photocatalytic ability capable of performing the above.
【０００２】[0002]
【従来の技術】水溶液に半導体の粉末を分散し、その物
質のバンドギャップ以上のエネルギーを持つ光（４００
ｎｍ以下の波長の光）を照射すると、光励起により生成
した電子と正孔が半導体粒子表面に移動し、水溶液中の
イオン種や分子種に作用して、水の分解など様々な反応
を引き起こすことは、半導体光触媒反応としてよく知ら
れている。酸化チタンが代表的な光触媒として挙げられ
る。これらに太陽光、蛍光灯、白熱灯、ブラックライ
ト、紫外線ランプ、水銀灯、キセノンランプ、ハロゲン
ランプ、メタルハライドランプ、冷陰極蛍光ランプなど
の光を照射することにより、脱臭あるいは有害汚染物質
の無害化、環境におけるNOＸの除去、染色排水の脱色、
水の浄化を行うことができる。2. Description of the Related Art A semiconductor powder is dispersed in an aqueous solution, and light (400) having an energy greater than the band gap of the substance is dispersed.
When irradiated with light having a wavelength of less than nm), electrons and holes generated by photoexcitation move to the surface of the semiconductor particles, and act on ionic and molecular species in the aqueous solution to cause various reactions such as decomposition of water. Are well known as semiconductor photocatalytic reactions. Titanium oxide is a typical photocatalyst. By irradiating them with sunlight, fluorescent lamps, incandescent lamps, black lights, ultraviolet lamps, mercury lamps, xenon lamps, halogen lamps, metal halide lamps, cold cathode fluorescent lamps, etc., deodorization or detoxification of harmful pollutants, removal of NO X in the environment, bleaching of dyeing wastewater,
Water purification can be performed.
【０００３】このような酸化チタン光触媒を用いれば、
紫外光を照射することにより吸着された悪臭などを分解
除去できることから、酸化チタン、微細繊維、およびポ
リエステル繊維からなる支持体形成成分を用いて、湿式
抄紙法にてシート化する製造方法が特開平８−２６６６
０１号公報に開示されている。また、活性炭に酸化チタ
ン光触媒を複合化すると、飽和になった活性炭をリフレ
ッシュできることから、特開平９−９４８号公報には活
性炭基材に酸化チタン微粒子を均一に、かつ強固に担持
する方法が開示されている。また、膨大な比表面積を有
し、吸着能に優れたシリカゲルの細孔内に酸化チタン光
触媒を担持した光触媒シリカゲルが特開平１１−１３８
０１７号公報に開示されている。If such a titanium oxide photocatalyst is used,
A method for producing a sheet by a wet papermaking method using a support-forming component composed of titanium oxide, fine fibers, and polyester fibers can be used to dissolve and remove adsorbed odors and the like by irradiating ultraviolet light. 8-2666
No. 01 is disclosed. Further, since a saturated activated carbon can be refreshed by combining a titanium oxide photocatalyst with the activated carbon, JP-A-9-948 discloses a method for uniformly and firmly supporting titanium oxide fine particles on an activated carbon base material. Have been. Also, a photocatalytic silica gel having a titanium oxide photocatalyst in pores of silica gel having an enormous specific surface area and having excellent adsorption capacity is disclosed in JP-A-11-138.
No. 017.
【０００４】[0004]
【発明が解決しようとする課題】上述のシートなどに用
いられている活性炭やポリエステル繊維は紫外光を遮る
性質があり、悪臭などの分解、除去に関与できるのは、
シート表面近傍の極わずかな酸化チタン光触媒粒子に限
られていること、更にこれらシートは通気抵抗が低い形
状のフィルターとして用いられることが多いが、紫外光
は隔壁に平行に入るため、そのまま通過するものが多
く、紫外光が有効に使われない構造でもあった。Activated carbon and polyester fibers used in the above-mentioned sheets and the like have the property of blocking ultraviolet light, and can participate in decomposition and removal of odors and the like.
It is limited to a very small amount of titanium oxide photocatalyst particles near the sheet surface, and these sheets are often used as filters with low airflow resistance, but ultraviolet light passes parallel to partition walls and passes as it is There were many things, and it was a structure where ultraviolet light was not used effectively.
【０００５】また、上述の光触媒シリカゲルは、粒状品
であるためそのまま固定層としたのでは通気抵抗が非常
に大きくなり、低静圧のファンを搭載している空気清浄
機などには全く使用することができなかった。これらの
ことから通気抵抗が低く、酸化チタン光触媒に有効に紫
外光が照射できる高性能な光触媒能を持ったフィルター
が望まれていた。Further, since the above-mentioned photocatalytic silica gel is a granular product, if it is used as it is as a fixed layer, the ventilation resistance becomes extremely large, and it is completely used for an air purifier equipped with a low static pressure fan. I couldn't do that. For these reasons, there has been a demand for a filter having a high air-flow resistance and a high-performance photocatalyst capable of effectively irradiating the titanium oxide photocatalyst with ultraviolet light.
【０００６】[0006]
【課題を解決するための手段】上記の目的を達成するた
めに、球相当直径が０．１ｍｍ〜５mmの範囲にある、主
として酸化チタン光触媒からなる粒状品または／および
酸化チタン光触媒を担持した粒状品を、接着剤で０．５
ｍｍ〜５０ｍｍの厚みを持った３次元的な網目構造を有
するフィルターに固定したことを特徴とする光触媒能を
有するフィルターを提供するものである。In order to achieve the above-mentioned object, in order to achieve the above object, a granular product mainly composed of a titanium oxide photocatalyst and / or a granular material having a titanium oxide photocatalyst having a sphere equivalent diameter in the range of 0.1 mm to 5 mm. Product with adhesive
An object of the present invention is to provide a filter having photocatalytic ability, which is fixed to a filter having a three-dimensional network structure having a thickness of from 50 mm to 50 mm.
【０００７】本発明に関わるフィルターは、合成繊維、
天然繊維、繊維状活性炭素繊維、活性炭、紙、プラスチ
ック、ガラス、セラミックスおよび金属などから選ばれ
た少なくとも一種を含む、０．５ｍｍ〜５０ｍｍの厚み
を持った３次元的な網目構造を有する公知のフィルター
を制限なく利用できる。フィルターの３次元的な網目構
造に、光触媒能を有する粒状品を３次元的にフィルター
に接着剤で固定すると、２次元的に該粒状品を配置する
よりも通気抵抗を小さくできるばかりでなく、該粒状品
に流体が直接衝突する確率が高くなり、光触媒能の向上
が期待できる。また、該粒状品は３次元的な網目構造に
対して多数の点で接着され、脱落することがない。な
お、フィルター断面における光触媒粒状品の分布は、例
えば表面の濃度を高く内部に向かって濃度を低くするよ
うな濃度勾配を持たせても良い。The filter according to the present invention comprises a synthetic fiber,
A known three-dimensional network structure having a thickness of 0.5 mm to 50 mm, including at least one selected from natural fibers, fibrous activated carbon fibers, activated carbon, paper, plastic, glass, ceramics, and metals. Filters can be used without restriction. When a particulate product having photocatalytic ability is fixed to the filter three-dimensionally with an adhesive in the three-dimensional network structure of the filter, not only can the airflow resistance be reduced than when the particulate product is arranged two-dimensionally, The probability that the fluid directly collides with the granular product is increased, and an improvement in the photocatalytic ability can be expected. Further, the granular product is bonded to the three-dimensional network structure at many points and does not fall off. The distribution of the particulate photocatalyst in the cross section of the filter may have, for example, a concentration gradient such that the concentration on the surface increases and the concentration decreases toward the inside.
【０００８】フィルターの厚みが０．５ｍｍ未満では、
光触媒粒状品がより密に詰まり通気抵抗が大きくなり好
ましくなく、フィルターの厚みが５０ｍｍを超えると、
フィルター内部の光触媒粒状品に紫外光が十分に照射さ
れなくなり、光触媒能が飽和するので好ましくない。フ
ィルターの厚みは２ｍｍ〜２０ｍｍがより好ましい。If the thickness of the filter is less than 0.5 mm,
When the photocatalyst particulates are more densely packed and the airflow resistance is increased, which is not preferable, and when the thickness of the filter exceeds 50 mm,
The photocatalyst granules inside the filter are not sufficiently irradiated with ultraviolet light, and the photocatalytic activity is saturated, which is not preferable. The thickness of the filter is more preferably 2 mm to 20 mm.
【０００９】本発明に関わる主として酸化チタン光触媒
からなる粒状品は、公知の方法により、例えば少なくと
も粉末酸化チタン光触媒とバインダーとを混合し、球相
当直径が０．１ｍｍ〜５mmの球状、円柱状、三角柱状、
四角柱状、無定形状、ラシヒリング状、テラレット状な
どの形状に造粒または成形した後、乾燥または焼成する
ことにより得られるものを制限なく使用することができ
る。なお、活性炭、シリカゲル、ゼオライト、モンモリ
ロナイト、セピオライト、活性白土などの吸着剤を該粒
状品に含ませると、吸着効果が期待できることからより
望ましい。The granular product mainly composed of a titanium oxide photocatalyst according to the present invention can be prepared by a known method, for example, by mixing at least a powdered titanium oxide photocatalyst and a binder to form a sphere or column having an equivalent sphere diameter of 0.1 mm to 5 mm. Triangular prism,
After being granulated or formed into a shape such as a quadrangular prism, an amorphous shape, a Raschig ring shape, a terraret, and the like, a material obtained by drying or firing can be used without limitation. In addition, it is more desirable to include an adsorbent such as activated carbon, silica gel, zeolite, montmorillonite, sepiolite, and activated clay in the granular product because the adsorption effect can be expected.
【００１０】本発明に関わる酸化チタン光触媒を担持し
た粒状品は、有機、無機および金属材料などの球相当直
径が０．１ｍｍ〜５mmの球状、円柱状、三角柱状、四角
柱状、無定形状、ラシヒリング状、テラレット状などの
担体の表面または細孔内に酸化チタン光触媒を担持した
ものなどを制限なく使用することができる。The titanium oxide photocatalyst-supporting granular product according to the present invention may be spherical, cylindrical, triangular, square, square, amorphous, etc. having a sphere equivalent diameter of 0.1 mm to 5 mm such as organic, inorganic and metallic materials. A carrier having a titanium oxide photocatalyst on the surface or in pores of a carrier such as a Raschig ring or a teralet can be used without limitation.
【００１１】本発明に関わる酸化チタン光触媒は、結晶
形がアナターゼ型であることが望ましく、鉄、銅、クロ
ム、コバルト、バナジウム、亜鉛、マグネシウム、カル
シウム、銀、白金、パラジウムなど他の元素をドーピン
グすることなどにより光触媒能を改良された酸化チタン
光触媒も制限なく使用できる。The titanium oxide photocatalyst according to the present invention preferably has a crystal form of an anatase type and is doped with other elements such as iron, copper, chromium, cobalt, vanadium, zinc, magnesium, calcium, silver, platinum and palladium. Thus, a titanium oxide photocatalyst having improved photocatalytic ability can be used without limitation.
【００１２】本発明に関わる接着剤は、合成樹脂系接着
剤、エマルジョン形接着剤、ホットメルト形接着剤、融
着繊維、合成ゴム系接着剤、シリコーン系接着剤、天然
系接着剤など該粒状品を３次元的な網目構造を有するフ
ィルターに固定できるものであれば制限なく利用でき
る。なお、接着剤の硬化は、室温放置だけでなく、加
熱、紫外線、電子線、湿気など公知の硬化方法を制限な
く利用できる。The adhesive according to the present invention includes synthetic resin adhesives, emulsion adhesives, hot melt adhesives, fused fibers, synthetic rubber adhesives, silicone adhesives, natural adhesives and the like. Anything can be used without limitation as long as the article can be fixed to a filter having a three-dimensional network structure. The adhesive can be cured not only by leaving it at room temperature but also by any known curing method such as heating, ultraviolet rays, electron beams, and moisture.
【００１３】本発明に関わる光触媒能を有するフィルタ
ーは、接着剤を３次元的な網目構造に公知の方法で、例
えばスプレーでフィルターに接着剤を付着させた後、網
目に入り得る大きさの該粒状品を上からパラパラと落と
した後、接着剤を硬化させることにより得られる。な
お、フィルターの奥まで入れる場合には、空気流に該粒
状品を同伴させて投射するサンドブラストなどを用いて
も良い。また、該粒状品と同時に活性炭、シリカゲル、
ゼオライト、モンモリロナイト、セピオライト、活性白
土などの吸着剤からなる粒状品をフィルターに含ませる
ことは、脱臭性能が向上することからより望ましい。The filter having photocatalytic ability according to the present invention has a three-dimensional network structure in which the adhesive is applied to the filter by a known method, for example, by spraying the adhesive onto the filter. It is obtained by dropping the granular product from above and then curing the adhesive. If the filter is to be inserted deep into the filter, sandblasting or the like that projects the particulates together with the air flow may be used. Activated carbon, silica gel,
It is more desirable that the filter contains a particulate material composed of an adsorbent such as zeolite, montmorillonite, sepiolite, and activated clay, because the deodorizing performance is improved.
【００１４】[0014]
【作用】本発明による光触媒能を有するフィルターは、
球相当直径が０．１ｍｍ〜５mmの範囲にある、主として
酸化チタン光触媒からなる粒状品または／および酸化チ
タン光触媒を担持した粒状品を、接着剤で０．５ｍｍ〜
５０ｍｍの厚みを持った３次元的な網目構造を有するフ
ィルターに固定することにより、酸化チタン光触媒に紫
外光を効率良く照射されることから顕著な光触媒能を有
し、かつ通気抵抗が極めて小さく、空気中の悪臭やNOＸ
など有害汚染物質、あるいは水中に含まれている有機溶
剤、染料、農薬などを極めて効率よく分解除去すること
ができる。The filter having photocatalytic activity according to the present invention comprises:
Granules having a sphere equivalent diameter in the range of 0.1 mm to 5 mm and mainly comprising a titanium oxide photocatalyst or / and supporting a titanium oxide photocatalyst are mixed with an adhesive in a range of 0.5 mm to 0.5 mm.
By fixing to a filter having a three-dimensional network structure having a thickness of 50 mm, the titanium oxide photocatalyst has a remarkable photocatalytic ability from being efficiently irradiated with ultraviolet light, and has a very small airflow resistance, Odor and NO X in the air
Harmful pollutants, or organic solvents, dyes, pesticides and the like contained in water can be decomposed and removed very efficiently.
【００１５】[0015]
【発明の実施の形態】本発明を次の例で詳しく説明す
る。DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail with reference to the following examples.
【００１６】［参考実施例１］粉末酸化チタン光触媒
（石原産業製、品番：ＳＴ−２１、Ｘ線粒径２０ｎｍ）
１００重量部、ゼオライト（東ソー製、商品名：トヨビ
ルダー粉末）１０重量部をミキサーで混合した後、カー
ドラン（武田薬品製）を添加した水を用いて転動造粒機
により造粒し７５μｍ〜５００μｍの玉を得た。この玉
を６０℃で２４時間予備乾燥した後、１２０℃で６０分
間乾燥して主として酸化チタン光触媒からなる粒状品
（以下、「粒状品−１」という）を得た。このようにし
て得られた主として酸化チタン光触媒からなる粒状品を
Ｘ線回折により調べた結果、酸化チタンの結晶構造はア
ナターゼであることが確認された。Reference Example 1 Powdery titanium oxide photocatalyst (manufactured by Ishihara Sangyo, product number: ST-21, X-ray particle size: 20 nm)
After mixing 100 parts by weight and 10 parts by weight of zeolite (manufactured by Tosoh Corporation, trade name: Toyo Builder Powder) with a mixer, the mixture was granulated by a tumbling granulator using water to which curdlan (manufactured by Takeda Pharmaceutical) was added, and then 75 μm. A ball of about 500 μm was obtained. This ball was pre-dried at 60 ° C. for 24 hours and then dried at 120 ° C. for 60 minutes to obtain a granular product mainly composed of a titanium oxide photocatalyst (hereinafter, “granular product-1”). X-ray diffraction analysis of the thus obtained granular product mainly composed of a titanium oxide photocatalyst confirmed that the crystal structure of titanium oxide was anatase.
【００１７】［参考実施例２］粉末酸化チタン光触媒
（石原産業製、品番：ＳＴ−２１、Ｘ線粒径２０ｎｍ）
１００重量部、および非結晶性低融点ガラス（セントラ
ル硝子製、接着温度：４３０〜６５０℃、転移点：３２
０〜４８０℃）１０重量部とをミキサーで混合した後、
カードラン（武田薬品製）を添加した水を用いて転動造
粒機により造粒し７５μｍ〜５００μｍの玉を得た。こ
の玉を６０℃で２４時間予備乾燥した後、電気炉を用い
時々炉蓋を空けて酸素を供給しながら室温から徐々に６
５０℃まで加熱昇温し、６５０℃で３時間保持した後、
室温まで自然放冷して主として酸化チタン光触媒からな
る粒状品（以下、「粒状品−２」という）を得た。この
ようにして得られた主として酸化チタン光触媒からなる
粒状品をＸ線回折により調べた結果、酸化チタンの結晶
構造はアナターゼであることが確認された。Reference Example 2 Powdery titanium oxide photocatalyst (manufactured by Ishihara Sangyo, product number: ST-21, X-ray particle size: 20 nm)
100 parts by weight, and an amorphous low melting point glass (manufactured by Central Glass, bonding temperature: 430 to 650 ° C., transition point: 32)
0 to 480 ° C.) and 10 parts by weight with a mixer.
Using water to which curdlan (manufactured by Takeda Pharmaceutical Co., Ltd.) was added, granulation was performed with a tumbling granulator to obtain balls of 75 μm to 500 μm. After pre-drying the ball at 60 ° C. for 24 hours, the furnace is gradually opened from room temperature while supplying oxygen by opening the furnace cover occasionally using an electric furnace.
After heating to 50 ° C and holding at 650 ° C for 3 hours,
It was allowed to cool to room temperature to obtain a granular product mainly composed of a titanium oxide photocatalyst (hereinafter, referred to as “granular product-2”). X-ray diffraction analysis of the thus obtained granular product mainly composed of a titanium oxide photocatalyst confirmed that the crystal structure of titanium oxide was anatase.
【００１８】［参考実施例３］１７０℃で乾燥した粒径
が７５μｍ〜５００μｍのシリカゲル（富士シリシア化
学製、品番：ＣＡＲＩＡＣＴ Ｑ−５０。平均細孔径５
０ｎｍ、比表面積８０ｍ２／ｇ）２５０ｇと全細孔容積
の６０％量のジイソプロポキシ・ビス（アセチルアセト
ナト）チタン（酸化チタン換算含有量１６．５重量％）
１５０ｇをポリエチレン容器に入れて、速やかに蓋をし
てポットミル架台にこれを乗せ、２０ｒｐｍで１時間転
動した後、該シリカゲルを蒸留水で洗浄して２００℃で
乾燥したシリカゲルを電気炉で時々炉蓋を空けて酸素を
供給しながら室温から徐々に６００℃まで加熱昇温し、
６００℃で１時間保持した後、室温まで自然放冷して酸
化チタン光触媒を担持した粒状品（以下、「粒状品−
３」という）を得た。このようにして得られた酸化チタ
ン光触媒を担持した粒状品をＸ線回折により調べた結
果、酸化チタンの結晶構造はアナターゼであることが確
認され、真比重測定値から求めた酸化チタンの含有量は
１２．３重量％（１７０℃乾燥重量基準）であった。Reference Example 3 Silica gel dried at 170 ° C. and having a particle size of 75 μm to 500 μm (manufactured by Fuji Silysia Chemical Ltd., product number: CARIACT Q-50, average pore size 5)
0 g, specific surface area: 80 m 2 / g) 250 g of diisopropoxy bis (acetylacetonato) titanium (content of titanium oxide: 16.5% by weight) of 250 g of total pore volume
Put 150 g in a polyethylene container, quickly put the lid on it, put it on a pot mill stand, roll it for 1 hour at 20 rpm, wash the silica gel with distilled water, and dry the silica gel dried at 200 ° C. in an electric furnace sometimes. Open the furnace lid and heat up gradually from room temperature to 600 ° C while supplying oxygen,
After holding at 600 ° C. for 1 hour, the particles were allowed to cool naturally to room temperature, and the titanium oxide photocatalyst-supported granules (hereinafter, “granules-
3 "). The obtained titanium oxide photocatalyst-supported granular product was examined by X-ray diffraction. As a result, it was confirmed that the crystal structure of titanium oxide was anatase, and the content of titanium oxide determined from the measured value of true specific gravity Was 12.3% by weight (based on dry weight at 170 ° C.).
【００１９】［実施例１］接着剤（スリーエム製、商品
名：スプレーのり）をスプレーしたエアフィルター（東
洋紡製、商品名：ボンデンエアフィルター＃２６６−N
A、厚み：１８ｍｍ）に、参考実施例１で得た「粒状品
−１」、参考実施例２で得た「粒状品−２」および参考
実施例３で得た「粒状品−３」をそれぞれ１ｍ２当たり
約５０ｇを上からパラパラとフィルターに落とした後、
室温で一昼夜放置して本発明による光触媒能を有するフ
ィルター（以下、それぞれ「本発明によるフィルター−
１」、「本発明によるフィルター−２」および「本発明
によるフィルター−３」という）を得た。[Example 1] An air filter (manufactured by Toyobo, trade name: Bonden Air Filter # 266-N) sprayed with an adhesive (trade name: spray glue, manufactured by 3M)
A, thickness: 18 mm), the “granular product-1” obtained in Reference Example 1, the “granular product-2” obtained in Reference Example 2, and the “granular product-3” obtained in Reference Example 3 after dropping from above about 50g per 1 m 2 to sprinkle and filter, respectively,
The filter having the photocatalytic ability according to the present invention (hereinafter referred to as “filter according to the present invention,
1 "," Filter-2 according to the invention "and" Filter-3 according to the invention ").
【００２０】次に、容積１ｍ３のボックスを用い、上で
得られた本発明によるフィルターの脱臭性能試験を行っ
た。まず、ボックス内の空気を乾燥した清浄空気でパー
ジしてから、マイルドセブン（日本たばこ産業株式会社
製）５本に一度に火をつけ、処理風量１ｍ３／minで空
気浄化をしながら、本発明によるフィルターについて、
それぞれ紫外光（紫外線強度３．４ｍW／ｃｍ２）を照
射しながら、アンモニア、アセトアルデヒドの濃度を検
知管で測定した結果（表１）から本発明によるフィルタ
ーは顕著な脱臭性能をに示すことが分った。Next, a deodorizing performance test of the filter according to the present invention obtained above was conducted using a box having a volume of 1 m 3 . First, the air in the box is purged with dry clean air, and then five mild seven (manufactured by Nippon Tobacco Inc.) are ignited at a time to purify the air at a processing air flow rate of 1 m 3 / min. About the filter by
The results obtained by measuring the concentrations of ammonia and acetaldehyde with a detector tube while irradiating each with ultraviolet light (ultraviolet light intensity: 3.4 mW / cm 2 ) (Table 1) indicate that the filter according to the present invention exhibits remarkable deodorizing performance. Was.
【００２１】[0021]
【表１】 [Table 1]
【００２２】[0022]
【発明の効果】本発明による光触媒能を有するフィルタ
ーは、球相当直径が０．１ｍｍ〜５mmの範囲にある、主
として酸化チタン光触媒からなる粒状品または／および
酸化チタン光触媒を担持した粒状品を、接着剤で０．５
ｍｍ〜５０ｍｍの厚みを持った３次元的な網目構造を有
するフィルターに固定することにより、紫外光が効率良
く酸化チタンに照射され、かつ通気抵抗が極めて小さい
という特徴を有することから、空気中の悪臭やNOＸなど
有害汚染物質、あるいは水中に含まれている有機溶剤、
染料、農薬などを、太陽光、蛍光灯、白熱灯、ブラック
ライト、紫外線ランプ、水銀灯、キセノンランプ、ハロ
ゲンランプ、メタルハライドランプ、冷陰極蛍光ランプ
などの光を照射することにより、迅速にかつ効率よく分
解除去でき、住宅や自動車内の空気清浄、浄水器、河川
浄化装置、海水浄化装置、廃水処理装置などに幅広く利
用できる。According to the present invention, there is provided a filter having photocatalytic ability comprising a particulate material mainly composed of a titanium oxide photocatalyst and / or a particulate material carrying a titanium oxide photocatalyst having an equivalent sphere diameter in the range of 0.1 mm to 5 mm. 0.5 with adhesive
By fixing to a filter having a three-dimensional network structure having a thickness of 50 mm to 50 mm, ultraviolet light is efficiently radiated to titanium oxide, and has a characteristic that the airflow resistance is extremely small. harmful pollutants such as offensive odor and NO X or an organic solvent contained in the water,
Irradiates dyes, pesticides, etc. with sunlight, fluorescent lamps, incandescent lamps, black lights, ultraviolet lamps, mercury lamps, xenon lamps, halogen lamps, metal halide lamps, cold cathode fluorescent lamps, etc., quickly and efficiently It can be decomposed and removed, and can be widely used for air purification, water purifiers, river purification equipment, seawater purification equipment, wastewater treatment equipment, etc. in houses and automobiles.
【図１】本発明による光触媒能を有するフィルターの一
例を示す断面図FIG. 1 is a cross-sectional view showing an example of a photocatalytic filter according to the present invention.
１ フィルター ２ ３次元的な網目構造 ３ 主として酸化チタン光触媒からなる粒状品または／
および酸化チタン光触媒を担持した粒状品DESCRIPTION OF SYMBOLS 1 Filter 2 Three-dimensional network structure 3 Granules mainly composed of a titanium oxide photocatalyst or /
Product carrying titanium and titanium oxide photocatalyst
───────────────────────────────────────────────────── フロントページの続き Ｆターム(参考） 4D037 AA01 AA05 AA13 AB04 AB05 BA18 CA02 CA12 4D048 AA06 AA22 AB03 BA06X BA07X BA11X BA41X BA50X BB01 BB07 CA02 CC41 CD05 EA01 4D050 AA02 AA13 AB03 AB04 AB12 BB01 BC06 BC07 BC09 BD02 BD08 CA15 4G069 AA03 BA02B BA04A BA04B BA07B BA14B BA38 BA48A CA01 CA07 CA10 CA13 CA17 DA06 EA13 EB16X EB16Y EB18X EB18Y ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 4D037 AA01 AA05 AA13 AB04 AB05 BA18 CA02 CA12 4D048 AA06 AA22 AB03 BA06X BA07X BA11X BA41X BA50X BB01 BB07 CA02 CC41 CD05 EA01 4D050 AA02 AA13 AB03 AB04 BD07 BC06 BC06 BC06 AA03 BA02B BA04A BA04B BA07B BA14B BA38 BA48A CA01 CA07 CA10 CA13 CA17 DA06 EA13 EB16X EB16Y EB18X EB18Y
Claims (1)
ある、主として酸化チタン光触媒からなる粒状品または
／および酸化チタン光触媒を担持した粒状品３を、接着
剤で０．５ｍｍ〜５０ｍｍの厚みを持った３次元的な網
目構造２を有するフィルター１に固定したことを特徴と
する光触媒能を有するフィルター。1. A particulate product mainly composed of a titanium oxide photocatalyst and / or a particulate product 3 carrying a titanium oxide photocatalyst having an equivalent sphere diameter in the range of 0.1 mm to 5 mm is coated with an adhesive of 0.5 mm to 50 mm. A filter having photocatalytic ability, which is fixed to a filter 1 having a three-dimensional network structure 2 having a thickness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27165599A JP2001087628A (en) | 1999-09-27 | 1999-09-27 | Filter having photocatalytic capacity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27165599A JP2001087628A (en) | 1999-09-27 | 1999-09-27 | Filter having photocatalytic capacity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2001087628A true JP2001087628A (en) | 2001-04-03 |
Family
ID=17503071
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP27165599A Pending JP2001087628A (en) | 1999-09-27 | 1999-09-27 | Filter having photocatalytic capacity |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2001087628A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004125360A (en) * | 2002-01-08 | 2004-04-22 | Mitsubishi Electric Corp | Refrigerator |
| JP2005205312A (en) * | 2004-01-22 | 2005-08-04 | Kusatsu Electric Co Ltd | Decomposition catalyst |
| EP1698647A1 (en) * | 2003-12-26 | 2006-09-06 | Kansai Paint Co., Ltd. | Polymer and process for producing polymer |
| KR101061567B1 (en) | 2009-02-27 | 2011-09-02 | 충남대학교산학협력단 | Porous deodorization filter manufacturing device |
| CN115074668A (en) * | 2022-08-22 | 2022-09-20 | 北京辰融科技有限责任公司 | Blisk coating and preparation method and application thereof |
-
1999
- 1999-09-27 JP JP27165599A patent/JP2001087628A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004125360A (en) * | 2002-01-08 | 2004-04-22 | Mitsubishi Electric Corp | Refrigerator |
| EP1698647A1 (en) * | 2003-12-26 | 2006-09-06 | Kansai Paint Co., Ltd. | Polymer and process for producing polymer |
| EP1698647A4 (en) * | 2003-12-26 | 2008-01-30 | Kansai Paint Co Ltd | Polymer and process for producing polymer |
| US7649027B2 (en) | 2003-12-26 | 2010-01-19 | Kansai Paint Co., Ltd. | Polymer and process for producing polymer |
| JP2005205312A (en) * | 2004-01-22 | 2005-08-04 | Kusatsu Electric Co Ltd | Decomposition catalyst |
| KR101061567B1 (en) | 2009-02-27 | 2011-09-02 | 충남대학교산학협력단 | Porous deodorization filter manufacturing device |
| CN115074668A (en) * | 2022-08-22 | 2022-09-20 | 北京辰融科技有限责任公司 | Blisk coating and preparation method and application thereof |
| CN115074668B (en) * | 2022-08-22 | 2022-11-15 | 北京辰融科技有限责任公司 | Blisk coating and preparation method and application thereof |
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