TWI286995B - Ultraviolet-responsive thin film photocatalyst and application thereof - Google Patents
Ultraviolet-responsive thin film photocatalyst and application thereof Download PDFInfo
- Publication number
- TWI286995B TWI286995B TW093109249A TW93109249A TWI286995B TW I286995 B TWI286995 B TW I286995B TW 093109249 A TW093109249 A TW 093109249A TW 93109249 A TW93109249 A TW 93109249A TW I286995 B TWI286995 B TW I286995B
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- TW
- Taiwan
- Prior art keywords
- photocatalyst
- filter
- film
- crystal
- ultraviolet
- Prior art date
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- 239000011941 photocatalyst Substances 0.000 title claims abstract description 63
- 239000010409 thin film Substances 0.000 title claims abstract description 8
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 42
- 239000013078 crystal Substances 0.000 claims abstract description 26
- 239000010408 film Substances 0.000 claims abstract description 22
- 239000000758 substrate Substances 0.000 claims abstract description 14
- 239000004408 titanium dioxide Substances 0.000 claims abstract description 13
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229910021536 Zeolite Inorganic materials 0.000 claims abstract description 7
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000010457 zeolite Substances 0.000 claims abstract description 7
- 230000001954 sterilising effect Effects 0.000 claims description 29
- 238000010521 absorption reaction Methods 0.000 claims description 15
- 238000004659 sterilization and disinfection Methods 0.000 claims description 15
- 238000000746 purification Methods 0.000 claims description 11
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 9
- 230000002070 germicidal effect Effects 0.000 claims description 8
- 230000031700 light absorption Effects 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 229910000420 cerium oxide Inorganic materials 0.000 claims description 3
- BMMGVYCKOGBVEV-UHFFFAOYSA-N oxo(oxoceriooxy)cerium Chemical compound [Ce]=O.O=[Ce]=O BMMGVYCKOGBVEV-UHFFFAOYSA-N 0.000 claims description 3
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 2
- ZKEYULQFFYBZBG-UHFFFAOYSA-N lanthanum carbide Chemical compound [La].[C-]#[C] ZKEYULQFFYBZBG-UHFFFAOYSA-N 0.000 claims description 2
- 230000000844 anti-bacterial effect Effects 0.000 abstract description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract description 4
- 239000000203 mixture Substances 0.000 abstract description 3
- 239000004113 Sepiolite Substances 0.000 abstract 1
- 230000008033 biological extinction Effects 0.000 abstract 1
- 229910052799 carbon Inorganic materials 0.000 abstract 1
- 238000004140 cleaning Methods 0.000 abstract 1
- 238000001914 filtration Methods 0.000 abstract 1
- 229910052624 sepiolite Inorganic materials 0.000 abstract 1
- 235000019355 sepiolite Nutrition 0.000 abstract 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 abstract 1
- 239000000377 silicon dioxide Substances 0.000 abstract 1
- 241000894006 Bacteria Species 0.000 description 13
- 239000000126 substance Substances 0.000 description 9
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 9
- 230000000694 effects Effects 0.000 description 6
- 239000007788 liquid Substances 0.000 description 5
- 239000002609 medium Substances 0.000 description 5
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 4
- 230000005284 excitation Effects 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 239000007789 gas Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 230000001699 photocatalysis Effects 0.000 description 3
- 239000002689 soil Substances 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 2
- 241000700605 Viruses Species 0.000 description 2
- 230000001877 deodorizing effect Effects 0.000 description 2
- 238000009795 derivation Methods 0.000 description 2
- 238000010790 dilution Methods 0.000 description 2
- 239000012895 dilution Substances 0.000 description 2
- 239000012153 distilled water Substances 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 235000012054 meals Nutrition 0.000 description 2
- 244000005700 microbiome Species 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 230000003595 spectral effect Effects 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- XTQHKBHJIVJGKJ-UHFFFAOYSA-N sulfur monoxide Chemical compound S=O XTQHKBHJIVJGKJ-UHFFFAOYSA-N 0.000 description 2
- 239000010936 titanium Substances 0.000 description 2
- 229920001817 Agar Polymers 0.000 description 1
- 239000001971 Middlebrook 7H10 Agar Substances 0.000 description 1
- 241001467552 Mycobacterium bovis BCG Species 0.000 description 1
- 240000009023 Myrrhis odorata Species 0.000 description 1
- 235000007265 Myrrhis odorata Nutrition 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- 235000012550 Pimpinella anisum Nutrition 0.000 description 1
- 229910052772 Samarium Inorganic materials 0.000 description 1
- 241000191967 Staphylococcus aureus Species 0.000 description 1
- 229910010413 TiO 2 Inorganic materials 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000008272 agar Substances 0.000 description 1
- 150000004703 alkoxides Chemical class 0.000 description 1
- 230000003373 anti-fouling effect Effects 0.000 description 1
- 230000001580 bacterial effect Effects 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000000306 component Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000001212 derivatisation Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000000635 electron micrograph Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- -1 peroxide anion Chemical class 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- KZUNJOHGWZRPMI-UHFFFAOYSA-N samarium atom Chemical compound [Sm] KZUNJOHGWZRPMI-UHFFFAOYSA-N 0.000 description 1
- KKCBUQHMOMHUOY-UHFFFAOYSA-N sodium oxide Chemical compound [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 description 1
- 229910001948 sodium oxide Inorganic materials 0.000 description 1
- MZLGASXMSKOWSE-UHFFFAOYSA-N tantalum nitride Chemical compound [Ta]#N MZLGASXMSKOWSE-UHFFFAOYSA-N 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000009210 therapy by ultrasound Methods 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/20—Catalysts, in general, characterised by their form or physical properties characterised by their non-solid state
- B01J35/23—Catalysts, in general, characterised by their form or physical properties characterised by their non-solid state in a colloidal state
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
- B01J21/06—Silicon, titanium, zirconium or hafnium; Oxides or hydroxides thereof
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L9/00—Disinfection, sterilisation or deodorisation of air
- A61L9/16—Disinfection, sterilisation or deodorisation of air using physical phenomena
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L9/00—Disinfection, sterilisation or deodorisation of air
- A61L9/16—Disinfection, sterilisation or deodorisation of air using physical phenomena
- A61L9/18—Radiation
- A61L9/20—Ultraviolet radiation
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L9/00—Disinfection, sterilisation or deodorisation of air
- A61L9/16—Disinfection, sterilisation or deodorisation of air using physical phenomena
- A61L9/18—Radiation
- A61L9/20—Ultraviolet radiation
- A61L9/205—Ultraviolet radiation using a photocatalyst or photosensitiser
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
- B01J21/06—Silicon, titanium, zirconium or hafnium; Oxides or hydroxides thereof
- B01J21/063—Titanium; Oxides or hydroxides thereof
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/30—Catalysts, in general, characterised by their form or physical properties characterised by their physical properties
- B01J35/39—Photocatalytic properties
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- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/40—Catalysts, in general, characterised by their form or physical properties characterised by dimensions, e.g. grain size
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- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/02—Impregnation, coating or precipitation
- B01J37/0215—Coating
- B01J37/0219—Coating the coating containing organic compounds
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/02—Impregnation, coating or precipitation
- B01J37/03—Precipitation; Co-precipitation
- B01J37/036—Precipitation; Co-precipitation to form a gel or a cogel
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
- F24F8/20—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by sterilisation
- F24F8/22—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by sterilisation using UV light
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- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Epidemiology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Environmental & Geological Engineering (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Catalysts (AREA)
- Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
- Central Air Conditioning (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Description
1286995 (1) 玖、發明說明 【發明所屬之技術領域】 本發明係關於紫外線感應型薄膜光觸媒及其應用,更 詳言之係關於殺菌紫外線區域具有波長吸收峰値之紫外線 感應型薄膜光觸媒。 本發明提供該光觸媒,同時提供有用之高性能除菌淨 化裝置係可將藉由利用殺菌紫外線波長(25 3.7nm)之殺菌 紫外線之殺菌作用與於此波長區域具有波長吸收峰値之光 觸媒作用之兩者特性活用至最大限度者。 【先前技術】 以往以銳鈦礦型氧化鈦等爲代表之光觸媒,係藉由紫 外線照射表面時所產生之羥基、過氧化物陰離子之自由基 物質,具有如除去醛類有害物質,於惡臭防止法所限制之 惡臭物質之消臭分解、防污、殺菌等之機能之環境淨化材 料等之用。多數之氧化物可作爲光觸媒之用,但通常氧化 鈦多數作爲光觸媒其一之用,有銳鈦礦型、金紅石型、板 鈦礦型3種之晶體與非晶形體,其中廣泛使用光觸媒活性 大之銳鈦礦型之氧化鈦。利用此光觸媒之製品,至今多被 開發者不勝枚舉,利用氧化鈦之光觸媒作用以期防止雜菌 之衍生,得例示雜菌衍生防止體,其特徵爲將由鈦之烷氧 基金屬調製之二氧化鈦溶膠塗覆於基板上後經由焙燒,基 板被覆氧化鈦膜(參照特許第2 8 83 76 1號說明書)。 但通常銳鈦礦型之二氧化鈦光觸媒,自3 8 8nm之波 -5- (2) 1286995 長爲激勵有效區域,於350nm至365nm之紫外線區域之 波長顯示吸光峰値,迎接具有3 00nm之吸收端。對此, 細菌或病毒等微生物最有效之殺菌紫外線波長爲 253.7nm。爲此’使用殺菌紫外線燈無法有效激勵光觸 媒,反之藉由光觸媒抑制細菌衍生無法利用殺菌紫外線, 因此一般性之光觸媒之問題爲談不上殺菌,作用僅止於抗 菌。 於此情況下’本發明者們有鑑於該先前技術,基於若 製作得利用殺菌紫外線波長(25 3· 7nm),且於此區域具有 激勵有效波長區域之光觸媒,藉由殺菌紫外線燈之殺菌作 用與光觸媒之殺菌作用兩者之特性活用至最大限度之想 法’累積各種硏究之結果’找出以一氧化欽光觸媒具有特 定晶形之薄膜之形狀所形成於該殺菌紫外線波長區域具有 激勵有效區域之新型光觸媒,進一步反覆硏究以至完成本 發明。 即本發明之目的在於提供藉由該殺菌紫外線波長 (25 3.7nm)被激勵之新型光觸媒者。 又,本發明之目的係提供藉由使用以二氧化鈦光觸媒 具有特定晶形之薄膜之形狀,於該殺菌紫外線波長激勵光 觸媒,藉由殺菌紫外線燈之殺菌作用與二氧化光觸媒於相 同波長區域使用可發揮之新的技術。 再之本發明之目的係提供藉由以銳鈦礦型二氧化鈦光 觸媒具有特定晶形之薄膜之形狀所形成,殺菌紫外線波長 爲波長吸收峰値之薄膜光觸媒。 -6- (3) 1286995 【發明內容】 〔發明之揭示〕 本發明由以下之技術性手段所構成用以解決該課題。 (1) 形成薄膜之二氧化鈦光觸媒之晶粒大小爲5nm至 5 0nm,吸光波長峰値爲200nm至3 00nm之區域,膜厚爲 0.1至1.0微米之透明薄膜二氧化鈦光觸媒。 (2) 如第(1)項之光觸媒,其中形成薄膜之二氧化鈦之 晶形爲紡錘形結晶與立方形結晶之混合狀態者。 (3) 如第(2)項之光觸媒,其中該結晶系以摻合比4 : 1 1之比例,分散於水或甲醇者。 (4) 一種濾器,其特徵爲第(1)至(3)項中任一項之於 200nm至3 00nm之區域具有吸光波長峰値之光觸媒基材 被覆於基材之表面者。 (5) 如第(4)項之濾器,其中基材係使用碳化矽(SiC)、 非晶質一氧化砂(Si〇2)、一氧化砂爲主要成分之無機紙、 或活性碳、沸石、或以沸石爲主要成分之無機紙。 (6) 如第(4)項之濾器,其中基材係於成型爲螺紋狀之 濾器之表面,經薄膜塗覆吸光波長峰値爲200 nm至 300nm區域之光觸媒。 (7) —種空氣除菌淨化裝置’其特徵爲將第(4)項之濾 器與殺菌紫外線燈組合者。 (8) 如第(7)項之空氣除菌淨化裝置,其中2種類以上 之濾器係被配置與紫外線燈平行之距離5mm至15mm之 (4) 1286995 範圍內。 (9)如第(7)項之空氣除菌淨化裝置,其中被濾器 之空氣不被直接正交於濾器面所吸收,係具有沿濾器 至外表面或沿外表面朝內面吸收之空氣移動路徑者。 接著進一步詳細說明本發明。 本發明紫外線感應型薄膜光觸媒係於紫外線 2 7 4nm至285nm附近具有紫外線吸光峰値。作爲光 之用之二氧化鈦之晶形爲紡錘形(參照第2圖),紡錘 晶與立方形結晶之混合狀態亦可,晶粒徑以5nm至 所構成爲宜。紡錘形結晶與立方形結晶之摻合比適 4:11° 本發明之光觸媒適當爲薄膜所形成,係膜厚0. 1 · 〇微米之透明薄膜。形成此薄膜之基材係使用由以 矽(Sic)、非晶質二氧化矽(Si02)爲主要成分之無機紙 活性碳、沸石、或以沸石爲主要成分之無機紙所成之 構件,但不限此,若具有與此相同效果得同樣培養。 材之形狀適當爲螺紋狀、蜂窩濾器、氮化矽三次元架 組成之陶瓷濾器,非限於此類。 本發明得將該濾器與殺菌紫外線燈組合爲空氣除 化裝置。此時該濾器構件2種類以上被配置與紫外線 行之距離5mm至15mm之範圍內爲宜,此類得依裝 尺寸、種類等隨意設計。被濾器吸入之空氣不被直接 於濾器面所吸收,以設置沿濾器內面至外表面或沿外 朝內面吸收之空氣移動路徑爲宜。本發明之空氣除菌 吸入 內面 波長 觸媒 形結 5 0 n m 當爲 1至 碳化 、或 濾器 該基 構所 菌淨 燈平 置之 正交 表面 淨化 -8- (5) 1286995 裝置其特徵須含該濾器與紫外線燈之構成要素者,其他手 段使用構成一般之空氣除菌淨化裝置之適宜手段,此類構 成並無特別限制。 殺菌紫外線燈之光譜分布如第1圖所示,於波長 2 53.7nm具有峰値。且傳統之銳鈦礦型之二氧化鈦光觸媒 如第2B圖所示,由3 8 8nm之波長成爲激勵有效區域,顯 示於3 50nm至3 6 5nm之紫外線區域之波長之吸光峰値, 迎接具有3 00nm之吸收端。對此,本發明之紫外線感應 型二氧化鈦光觸媒,如第3圖所示,以紡錘形結晶所構 成。如此本發明之光觸媒,係由後述實施例具體所示之製 造方法再生性佳所製作者,其吸光曲線係完全不同於傳統 之二氧化鈦光觸媒,最大特徵爲於殺菌紫外線波長 25 3 ·7ηπι區域具有吸光峰値。本發明之光觸媒適宜作爲如 殺菌淨化及除臭濾器材料之用。 本發明之光觸媒之薄膜適宜將後述實施例製作之溶膠 以預定膜厚塗覆基材,焙燒所形成。 〔用以實施發明之最佳形態〕 接著根據實施例具體說明本發明,但本發明非爲以下 之實施例所限定。 【實施方式】 實施例1 (1)光觸媒之製造 -9- (6) 1286995 放入蒸餾水750ml於調製容器(敝口 2L燒杯),用0 140之葉片以約400rpm劇烈攪拌。於TPT(三菱瓦斯化 學)1 25ml加入異丙醇(和光純藥)20ml者以5ml / min滴液 於此。滴液結束立即添加濃硝酸((和光純藥)7ml。原樣以 8 0°C攪拌10小時進行加水分解。此時同時餾去異丙酸。 開始時溶液爲白濁,加水分解進行出現青白之透明感。完 成時之容量爲初期量之1/3程度。接著將此蓋上高壓釜 6小時。此時之溫度爲1 1 5 °C以上。完成後因內容物爲溶 膠化,將此用摻合機(容量1.2L、最大旋轉數22,000rpm) 攪拌。此時溶膠之Ti02含量爲14.7wt%。將此作爲溶膠 A。 於調製容器(敝口 SUS容器0 200x 270)加入35 %過氧 化氫(三菱瓦斯化學)177.8ml,用0 140以之葉片約 6〇〇rmp劇烈攪拌。在於同時添加 TPT(三菱瓦斯化 學)11.lml。此時產生劇烈熱反應甲醇揮發。揮發結束 後,旋轉數降低至約200rpm後,加入蒸餾水7 82.5ml, 再接加入3 5 %之過氧化氫1 2 2.3 m 1。於此狀態攪拌0.5小 時後,添加 1N水氧化鈉溶液 31.5ml。此時形成約 1,1 00ml之黄色黏性液體或溶膠體。將此蓋上高壓釜6小 時。此時之溫度爲1 l〇°C以上。完成時之容量920ml對初 期量減少約75%。此時溶膠之Ti含量爲1.96wt%、Ti02 含量爲3.28wt%。此時於完成之溶膠中以15ml/min滴液 成爲PH6.5〜7.5之溶膠A。比例爲大致重量比93:7。將 完成者封閉放置1 2小時。最初爲淡黄色之液體,產生白 -10- (7) 1286995 色沉澱。此狀態爲完成者,此時Ti〇2含量爲4.26wt%。 所得光觸媒之吸光曲線示於第1圖,光觸媒結晶透過電子 顯微鏡照片示於第2圖。 實施例2 用以藉由利用濾器與殺菌紫外線燈組合製作之裝置調 查殺菌能力。 菌種使用 Mycobacterium bovis BCG Tokyo(股),2.1 x 107 CFU/ mix 10ml之噴霧實驗結束後立時將聚菌·檢 測所用之「Paper HEPA Filer」浸漬於 Middlebrook 7H9 液體培養基中進行1分鐘的超音波處理。其後,用相同之 Middlebrook 7H9液體培養基製作各個10倍稀釋系列,將 各稀釋系列之 0.1ml / plate 分SU接種於 2 張 「Middlebrook 7H10瓊脂平板培養基」。各液體培養基、 瓊脂平板培養基同時以4週3 7 °C持續培養。其結果示於 表1。 其結果爲「於菌之培養呈陽性之實施區塊4之2次實 驗」,自「Paper HEPA Filer」檢測出噴霧菌量(平均爲 2·1χ 1〇7 CFU/ml)之 1/100 以下之菌數(3·4 〜3·7χ 1〇3 CFU / ml)。此結果意味即使「空氣殺菌機PLESANT」單 獨之「蜂窩狀單元」,具有有效發揮〈聚菌·集塵效果〉 之性能。 -11 - (8) 1286995 [表1] 實驗條件 使用濾 器 噴霧時 間 菌之培養 結果 備考 1 光觸媒+紫外線 強風 No.327 1 4分鐘 ㈠、 ㈠ 1, 光觸媒+紫外線 中風 No.327 1 4分鐘 ㈠、 (-) 2 光觸媒+紫外線 中風 No.2 14分鐘 ㈠、 ㈠ 光觸媒+紫外線 中風 No.2 1 4分鐘 ㈠' ㈠ 3 光觸媒+紫外線 強風 No.2 1 4分鐘 ㈠、 ㈠ 光觸媒+紫外線 強風 No.2 14分鐘 ㈠、 ㈠ 4 光觸媒+無光源 強風 No.2 1 4分鐘 (+ )、 (+ ) 有中斷 光觸媒+無光源 強風 No.2 14分鐘 (+ ) ' (+ ) 實施例2 用以藉由利用濾器與殺菌紫外線燈組合製作之裝置調 查殺菌能力進行除菌能力。其結果示於表2。 -12- 1286995 【运 紫外線光源開 P余去率 % 1 -------------------------- 99.97 99.97 99.96 Ά ^ 牺犮 回-° K- x 32土0.5 38 ±0.5 in d +l jn 上流回收菌數 x10* cfu/ml 124土1.5 〇 csi +I CO CM . 128±1.4 紫外線光源關 除去率 % 40.91 40.32 33.87 下流回收菌數 xlO1 cfu/ml 78±0.5 74±1.0* 82±1·0 上流回收菌數 xIO* cfu/ml 132±1.6 〇 rsi +I in -Η 大腸菌 餐1 ® £ κ y 1.875 1.875 1.875 測定次數 - CM co
紫外線光源開 P余去率 % 99.99 99.98 99.99 a ^ & ^ 回, κ x 16±0.5 22±0.5 13±0.5 a ^ 粞之 回? Η x 115±1.5 Ο cJ +l ID CM v (O 5 紫外線光源關 除去率 % 26.67 42.19 28.07 . 下流回収菌數 xtO* (ifu/ml 88±0·5 74土2.0 82±1.0 S Έ m ^ 荽ο 回b is x •H 120±1.5 CM rJ +1 CD OJ 114±1.8 黃色葡萄球菌 m = K .° +H ξ 1.754 1.754 • 1.754 測定次數 - CM CO
紫外線光源開 除去m °/〇 99.99 99.99 99.99 m ^ 回, 卜X 13±0.5 17±0.5 18±0.5 a ^ 回 传云 叫X 132±1.0 136±1.0 in 〇· +l co Γ0 建 陲 P余去率 7〇 25.00 36,23 30.30 Si ^ 涵之 回”ϋ 卜X 96±0.5 88±1.0 92±1.0 m g ^ 姿〇 回b 摈X 叫 ID f Ο CM 138±1.5 132±1.4 I B CO % o to U 田 ϋ 免 m tst 餐E m = κ ζ +Η ξ 1.540 1.540 1.540 測定次数 CM CD
紫外線光源開 除去率 % 99.90 99.83 99.85 下流回收菌数 TCIDSI / ml 102·39 10256 1〇2·51 上流回收菌数 TCIOM / mL 10s 38 10s 34 105·34 紫外線光源關 I— ______ __ 除去率 % 20.57 18.72 33.93 下满回收菌數 TCID,, / ml 10528 So 105*,β 上流回收菌數 TCID,· /城 S。 INJ τ— [10s·36 濾過性病毒 注入茴數 TCI0SI / ml :。 :0 :0 r— 測定次數 Γ0 D
-13- (10) 1286995 〔產業上之可利用性〕
如上所詳述’本發明係有關於紫外線感應型光觸媒及 其用途’根據本發明係可得(1)藉由將二氧化鈦光觸媒具 有特定晶形之薄膜之形狀所形成,得製造殺菌紫外線波長 爲波長吸收峰値之光觸媒’(2)得提供於殺菌紫外線波長 區域具有波長吸收峰値之光觸媒,(3 )藉由將殺菌紫外線 燈與該紫外線感應型光觸媒組合,得提供將殺菌紫外線燈 之殺菌作用與光觸媒作用活用至最大限度之新穎殺菌作用 及裝置,(4)得提供利用此之空氣除菌淨化裝置之效果。 【圖式簡單說明】 第1圖係表示殺菌紫外線燈之光譜能量分布。 第2圖係表示紫外線感應型光觸媒之吸光曲線。 第3圖係表示光觸媒結晶透過電子顯微鏡照片。 -14-
Claims (1)
- (1) 1286995 拾、申請專利範圍 1·一種透明薄膜二氧化鈦光觸媒,其特徵爲形成薄膜 之一氧化欽光觸媒之晶粒大小爲5nm至50nm,吸光波長 峰値爲200nm至300nm之區域,膜厚爲0.1至1.〇微米 者。 2 ·如申請專利範圍第1項之光觸媒,其中形成薄膜之 二氧化鈦之晶形爲紡錘形結晶與立方形結晶之混合狀態 者。 3 ·如申請專利範圍第2項之光觸媒,其中該結晶系以 配合比4 : 1 1之比例,分散於水或甲醇者。 4. 一種濾器,其特徵爲申請專利範圍第1至3項中任 一項於200nm至3 00nm之區域中具有吸光波長峰値之光 觸媒基材被覆於基材之表面者。 5 ·如申請專利範圍第4項之濾器,其中係使用碳化矽 (SiC)、非晶質二氧化矽(Si02)、二氧化矽爲主要成分之無 機紙,或活性碳、沸石、或以沸石爲主要成分之無機紙做 爲基材。 6. 如申請專利範圍第4項之濾器,其中於基材成型爲 螺紋狀之濾器之表面上,包覆吸光波長峰値爲20 Onm至 3 00nm之區域之光觸媒薄膜。 7. —種空氣除菌淨化裝置,其特徵爲將申請專利範圍 第4項之濾器與殺菌紫外線燈組合者。 8. 如申請專利範圍第7項之空氣除菌淨化裝置,其中 2種類以上之濾器係被配置與紫外線燈平行之距離5mm -15- (2) (2)1286995 至15mm之範圍內。 9.如申請專利範圍第7項之空氣除菌淨化裝置,其中 濾器吸入之空氣不直接正交於濾器面吸入,係具有沿濾器 內面至外表面或沿外表面朝內面吸入空氣移動路徑者。-16-
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JP2003102343A JP4303507B2 (ja) | 2003-04-04 | 2003-04-04 | 紫外線応答型薄膜光触媒とその応用 |
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TW200502174A TW200502174A (en) | 2005-01-16 |
TWI286995B true TWI286995B (en) | 2007-09-21 |
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TW093109249A TWI286995B (en) | 2003-04-04 | 2004-04-02 | Ultraviolet-responsive thin film photocatalyst and application thereof |
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US (1) | US20060275187A1 (zh) |
EP (1) | EP1611953A4 (zh) |
JP (1) | JP4303507B2 (zh) |
KR (1) | KR101152767B1 (zh) |
CN (1) | CN1842371B (zh) |
AU (1) | AU2004228833B2 (zh) |
CA (1) | CA2521168A1 (zh) |
HK (1) | HK1096056A1 (zh) |
NZ (1) | NZ542719A (zh) |
TW (1) | TWI286995B (zh) |
WO (1) | WO2004089544A1 (zh) |
Families Citing this family (4)
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JP4526029B2 (ja) | 2005-03-29 | 2010-08-18 | 大日本印刷株式会社 | 光触媒組成物および光触媒含有層 |
FR2952541A1 (fr) * | 2009-11-17 | 2011-05-20 | Photosil | Appareils de traitement de l'air interieur par photocatalyse, de haute efficacite, de tres faible perte de charge et sans entretien |
KR102101220B1 (ko) * | 2015-02-26 | 2020-04-17 | (주)엘지하우시스 | 가시광 활성 광촉매 코팅 조성물 및 공기정화용 필터 |
KR102374224B1 (ko) | 2020-06-02 | 2022-03-15 | 주식회사 본플러스 | 조도변화에 따라 살균기능이 발휘되는 소지품 보관용 살균함 |
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JP2889778B2 (ja) * | 1992-11-20 | 1999-05-10 | 工業技術院長 | 水浄化法 |
JP3844823B2 (ja) * | 1996-01-22 | 2006-11-15 | 財団法人石油産業活性化センター | 光触媒、光触媒の製造方法および光触媒反応方法 |
US6135838A (en) * | 1998-10-07 | 2000-10-24 | Chung Shan Institute Of Science And Technology | Method of making UV lamp for air cleaning |
CN1187097C (zh) * | 1999-07-19 | 2005-02-02 | 三井造船株式会社 | 净化含氧气体的方法和设备 |
JP2002241130A (ja) | 2001-02-09 | 2002-08-28 | Japan Atom Energy Res Inst | 酸化チタン超薄膜の作製法 |
JP2003001116A (ja) * | 2001-06-20 | 2003-01-07 | Daikin Ind Ltd | 光触媒およびその製造方法ならびにそれを備える空気清浄機 |
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2003
- 2003-04-04 JP JP2003102343A patent/JP4303507B2/ja not_active Expired - Lifetime
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2004
- 2004-04-02 CA CA002521168A patent/CA2521168A1/en not_active Abandoned
- 2004-04-02 KR KR1020057018565A patent/KR101152767B1/ko not_active IP Right Cessation
- 2004-04-02 WO PCT/JP2004/004874 patent/WO2004089544A1/ja active Application Filing
- 2004-04-02 US US10/551,448 patent/US20060275187A1/en not_active Abandoned
- 2004-04-02 TW TW093109249A patent/TWI286995B/zh not_active IP Right Cessation
- 2004-04-02 EP EP04725527A patent/EP1611953A4/en not_active Withdrawn
- 2004-04-02 NZ NZ542719A patent/NZ542719A/en unknown
- 2004-04-02 CN CN2004800086971A patent/CN1842371B/zh not_active Expired - Fee Related
- 2004-04-02 AU AU2004228833A patent/AU2004228833B2/en not_active Expired - Fee Related
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Also Published As
Publication number | Publication date |
---|---|
EP1611953A4 (en) | 2009-12-02 |
CN1842371A (zh) | 2006-10-04 |
KR20070084637A (ko) | 2007-08-27 |
US20060275187A1 (en) | 2006-12-07 |
KR101152767B1 (ko) | 2012-06-18 |
EP1611953A1 (en) | 2006-01-04 |
NZ542719A (en) | 2010-01-29 |
WO2004089544A1 (ja) | 2004-10-21 |
JP4303507B2 (ja) | 2009-07-29 |
CA2521168A1 (en) | 2004-10-21 |
AU2004228833B2 (en) | 2009-12-24 |
JP2004305883A (ja) | 2004-11-04 |
HK1096056A1 (en) | 2007-05-25 |
AU2004228833A1 (en) | 2004-10-21 |
CN1842371B (zh) | 2011-05-25 |
TW200502174A (en) | 2005-01-16 |
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