JP2001334148A - Material for holding photocatalytic function and method of holding photocatalytic function - Google Patents
Material for holding photocatalytic function and method of holding photocatalytic functionInfo
- Publication number
- JP2001334148A JP2001334148A JP2000156469A JP2000156469A JP2001334148A JP 2001334148 A JP2001334148 A JP 2001334148A JP 2000156469 A JP2000156469 A JP 2000156469A JP 2000156469 A JP2000156469 A JP 2000156469A JP 2001334148 A JP2001334148 A JP 2001334148A
- Authority
- JP
- Japan
- Prior art keywords
- photocatalyst
- water
- soluble compound
- coated
- photocatalytic function
- 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 22
- 238000000034 method Methods 0.000 title claims abstract description 15
- 239000000463 material Substances 0.000 title claims description 12
- 239000011941 photocatalyst Substances 0.000 claims abstract description 49
- 150000001875 compounds Chemical class 0.000 claims abstract description 32
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 22
- 238000005406 washing Methods 0.000 claims abstract description 15
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 42
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims description 25
- 239000000126 substance Substances 0.000 claims description 15
- 229910052751 metal Inorganic materials 0.000 claims description 8
- 239000002184 metal Substances 0.000 claims description 8
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 7
- 229920000620 organic polymer Polymers 0.000 claims description 7
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 6
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 claims description 6
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 6
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims description 6
- GPRLSGONYQIRFK-UHFFFAOYSA-N hydron Chemical compound [H+] GPRLSGONYQIRFK-UHFFFAOYSA-N 0.000 claims description 6
- AMWRITDGCCNYAT-UHFFFAOYSA-L hydroxy(oxo)manganese;manganese Chemical compound [Mn].O[Mn]=O.O[Mn]=O AMWRITDGCCNYAT-UHFFFAOYSA-L 0.000 claims description 6
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 6
- 229920002678 cellulose Chemical class 0.000 claims description 5
- 239000001913 cellulose Chemical class 0.000 claims description 5
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 4
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 4
- 229910052791 calcium Inorganic materials 0.000 claims description 4
- 239000011575 calcium Substances 0.000 claims description 4
- 239000000919 ceramic Substances 0.000 claims description 4
- 229910052749 magnesium Inorganic materials 0.000 claims description 4
- 239000011777 magnesium Substances 0.000 claims description 4
- 150000002739 metals Chemical class 0.000 claims description 4
- WUPHOULIZUERAE-UHFFFAOYSA-N 3-(oxolan-2-yl)propanoic acid Chemical compound OC(=O)CCC1CCCO1 WUPHOULIZUERAE-UHFFFAOYSA-N 0.000 claims description 3
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 3
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 3
- BUGBHKTXTAQXES-UHFFFAOYSA-N Selenium Chemical compound [Se] BUGBHKTXTAQXES-UHFFFAOYSA-N 0.000 claims description 3
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 3
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 3
- 229910021536 Zeolite Inorganic materials 0.000 claims description 3
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 3
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 3
- RAWGYCTZEBNSTP-UHFFFAOYSA-N aluminum potassium Chemical compound [Al].[K] RAWGYCTZEBNSTP-UHFFFAOYSA-N 0.000 claims description 3
- 150000001413 amino acids Chemical class 0.000 claims description 3
- 125000003118 aryl group Chemical group 0.000 claims description 3
- 229910002113 barium titanate Inorganic materials 0.000 claims description 3
- JRPBQTZRNDNNOP-UHFFFAOYSA-N barium titanate Chemical compound [Ba+2].[Ba+2].[O-][Ti]([O-])([O-])[O-] JRPBQTZRNDNNOP-UHFFFAOYSA-N 0.000 claims description 3
- 229910052980 cadmium sulfide Inorganic materials 0.000 claims description 3
- 150000001720 carbohydrates Chemical class 0.000 claims description 3
- 235000014633 carbohydrates Nutrition 0.000 claims description 3
- 229910052804 chromium Inorganic materials 0.000 claims description 3
- 239000011651 chromium Substances 0.000 claims description 3
- 229910017052 cobalt Inorganic materials 0.000 claims description 3
- 239000010941 cobalt Substances 0.000 claims description 3
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 3
- 239000002131 composite material Substances 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 3
- 229910052737 gold Inorganic materials 0.000 claims description 3
- 239000010931 gold Substances 0.000 claims description 3
- 229910052735 hafnium Inorganic materials 0.000 claims description 3
- VBJZVLUMGGDVMO-UHFFFAOYSA-N hafnium atom Chemical compound [Hf] VBJZVLUMGGDVMO-UHFFFAOYSA-N 0.000 claims description 3
- 229920000592 inorganic polymer Polymers 0.000 claims description 3
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 claims description 3
- 229910052750 molybdenum Inorganic materials 0.000 claims description 3
- 239000011733 molybdenum Substances 0.000 claims description 3
- 229910052759 nickel Inorganic materials 0.000 claims description 3
- QGLKJKCYBOYXKC-UHFFFAOYSA-N nonaoxidotritungsten Chemical compound O=[W]1(=O)O[W](=O)(=O)O[W](=O)(=O)O1 QGLKJKCYBOYXKC-UHFFFAOYSA-N 0.000 claims description 3
- 239000003973 paint Substances 0.000 claims description 3
- 229910052763 palladium Inorganic materials 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 229920003023 plastic Polymers 0.000 claims description 3
- 229910052697 platinum Inorganic materials 0.000 claims description 3
- 239000011347 resin Substances 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims description 3
- 239000005060 rubber Substances 0.000 claims description 3
- 229910001925 ruthenium oxide Inorganic materials 0.000 claims description 3
- WOCIAKWEIIZHES-UHFFFAOYSA-N ruthenium(iv) oxide Chemical compound O=[Ru]=O WOCIAKWEIIZHES-UHFFFAOYSA-N 0.000 claims description 3
- 229910052711 selenium Inorganic materials 0.000 claims description 3
- 239000011669 selenium Substances 0.000 claims description 3
- 239000000377 silicon dioxide Substances 0.000 claims description 3
- 229910052709 silver Inorganic materials 0.000 claims description 3
- 239000004332 silver Substances 0.000 claims description 3
- 229910052708 sodium Inorganic materials 0.000 claims description 3
- 239000011734 sodium Substances 0.000 claims description 3
- 239000004094 surface-active agent Substances 0.000 claims description 3
- 229910052718 tin Inorganic materials 0.000 claims description 3
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 3
- 229910052721 tungsten Inorganic materials 0.000 claims description 3
- 239000010937 tungsten Substances 0.000 claims description 3
- 229910001930 tungsten oxide Inorganic materials 0.000 claims description 3
- 229910052720 vanadium Inorganic materials 0.000 claims description 3
- GPPXJZIENCGNKB-UHFFFAOYSA-N vanadium Chemical compound [V]#[V] GPPXJZIENCGNKB-UHFFFAOYSA-N 0.000 claims description 3
- 229920003169 water-soluble polymer Polymers 0.000 claims description 3
- 239000010457 zeolite Substances 0.000 claims description 3
- 229910052725 zinc Inorganic materials 0.000 claims description 3
- 239000011701 zinc Substances 0.000 claims description 3
- 239000011787 zinc oxide Substances 0.000 claims description 3
- 229910052726 zirconium Inorganic materials 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims description 2
- 238000000576 coating method Methods 0.000 claims description 2
- VEALVRVVWBQVSL-UHFFFAOYSA-N strontium titanate Chemical compound [Sr+2].[O-][Ti]([O-])=O VEALVRVVWBQVSL-UHFFFAOYSA-N 0.000 claims description 2
- 239000004065 semiconductor Substances 0.000 claims 2
- 150000004679 hydroxides Chemical class 0.000 claims 1
- 230000014759 maintenance of location Effects 0.000 claims 1
- 239000002023 wood Substances 0.000 claims 1
- 229920002472 Starch Polymers 0.000 abstract description 6
- 239000008107 starch Substances 0.000 abstract description 6
- 235000019698 starch Nutrition 0.000 abstract description 6
- 238000001179 sorption measurement Methods 0.000 abstract description 4
- 150000002894 organic compounds Chemical class 0.000 abstract 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 14
- 239000007789 gas Substances 0.000 description 13
- -1 superoxide anions Chemical class 0.000 description 9
- IKHGUXGNUITLKF-UHFFFAOYSA-N Acetaldehyde Chemical compound CC=O IKHGUXGNUITLKF-UHFFFAOYSA-N 0.000 description 8
- 230000000694 effects Effects 0.000 description 8
- 229910002092 carbon dioxide Inorganic materials 0.000 description 7
- 238000006243 chemical reaction Methods 0.000 description 5
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 4
- 229930006000 Sucrose Natural products 0.000 description 4
- CZMRCDWAGMRECN-UGDNZRGBSA-N Sucrose Chemical compound O[C@H]1[C@H](O)[C@@H](CO)O[C@@]1(CO)O[C@@H]1[C@H](O)[C@@H](O)[C@H](O)[C@@H](CO)O1 CZMRCDWAGMRECN-UGDNZRGBSA-N 0.000 description 4
- 239000001768 carboxy methyl cellulose Substances 0.000 description 4
- 235000010948 carboxy methyl cellulose Nutrition 0.000 description 4
- 239000008112 carboxymethyl-cellulose Substances 0.000 description 4
- 238000000354 decomposition reaction Methods 0.000 description 4
- 239000005720 sucrose Substances 0.000 description 4
- 239000003054 catalyst Substances 0.000 description 3
- 235000013373 food additive Nutrition 0.000 description 3
- 239000002778 food additive Substances 0.000 description 3
- 238000000769 gas chromatography-flame ionisation detection Methods 0.000 description 3
- KXDHJXZQYSOELW-UHFFFAOYSA-N Carbamic acid Chemical compound NC(O)=O KXDHJXZQYSOELW-UHFFFAOYSA-N 0.000 description 2
- 229920000896 Ethulose Polymers 0.000 description 2
- 239000001856 Ethyl cellulose Substances 0.000 description 2
- ZZSNKZQZMQGXPY-UHFFFAOYSA-N Ethyl cellulose Chemical compound CCOCC1OC(OC)C(OCC)C(OCC)C1OC1C(O)C(O)C(OC)C(CO)O1 ZZSNKZQZMQGXPY-UHFFFAOYSA-N 0.000 description 2
- 239000001859 Ethyl hydroxyethyl cellulose Substances 0.000 description 2
- 229920000663 Hydroxyethyl cellulose Polymers 0.000 description 2
- 239000004354 Hydroxyethyl cellulose Substances 0.000 description 2
- 229920002153 Hydroxypropyl cellulose Polymers 0.000 description 2
- 229910019142 PO4 Inorganic materials 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 150000001299 aldehydes Chemical class 0.000 description 2
- 239000002280 amphoteric surfactant Substances 0.000 description 2
- 239000003945 anionic surfactant Substances 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 239000012159 carrier gas Substances 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- 230000001877 deodorizing effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 229920001249 ethyl cellulose Polymers 0.000 description 2
- 235000019325 ethyl cellulose Nutrition 0.000 description 2
- 235000019326 ethyl hydroxyethyl cellulose Nutrition 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 2
- 235000019447 hydroxyethyl cellulose Nutrition 0.000 description 2
- 239000001863 hydroxypropyl cellulose Substances 0.000 description 2
- 235000010977 hydroxypropyl cellulose Nutrition 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 229910010272 inorganic material Inorganic materials 0.000 description 2
- 239000011147 inorganic material Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 229920000609 methyl cellulose Polymers 0.000 description 2
- 239000001923 methylcellulose Substances 0.000 description 2
- 235000010981 methylcellulose Nutrition 0.000 description 2
- 239000010452 phosphate Substances 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 230000001172 regenerating effect Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000001954 sterilising effect Effects 0.000 description 2
- 235000000346 sugar Nutrition 0.000 description 2
- 150000008163 sugars Chemical class 0.000 description 2
- 102100032566 Carbonic anhydrase-related protein 10 Human genes 0.000 description 1
- 101000867836 Homo sapiens Carbonic anhydrase-related protein 10 Proteins 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000003373 anti-fouling effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 150000001733 carboxylic acid esters Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005202 decontamination Methods 0.000 description 1
- 230000003588 decontaminative effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 230000002779 inactivation Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 238000013032 photocatalytic reaction Methods 0.000 description 1
- 238000006552 photochemical reaction Methods 0.000 description 1
- 230000001443 photoexcitation Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000002574 poison Substances 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 229920000193 polymethacrylate Polymers 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 229910052712 strontium Inorganic materials 0.000 description 1
- CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical compound [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 description 1
- 150000003457 sulfones Chemical class 0.000 description 1
- 150000003459 sulfonic acid esters Chemical class 0.000 description 1
- LLZRNZOLAXHGLL-UHFFFAOYSA-J titanic acid Chemical compound O[Ti](O)(O)O LLZRNZOLAXHGLL-UHFFFAOYSA-J 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、アルデヒド類など
の有害物質除去，悪臭防止法で規制されている物質を含
む悪臭物質の消臭分解，防汚，滅菌などの環境浄化材と
して利用が進みつつある光触媒に関するもので、該光触
媒を塗布した部材の貯蔵、輸送過程における光触媒の機
能保持に係るものである。The present invention has been increasingly used as an environmental purification material for removing harmful substances such as aldehydes, deodorizing, decomposing, and sterilizing malodorous substances including substances regulated by the Odor Control Law. The present invention relates to an increasing photocatalyst, and relates to maintaining the function of the photocatalyst during storage and transport of a member coated with the photocatalyst.
【０００２】[0002]
【従来技術】光触媒は、紫外線の照射によりヒドロキシ
ラジカル，スーパーオキサイドアニオンが光触媒の表面
上に発現することにより、アルデヒド類などの有害物質
除去，悪臭防止法で規制されている悪臭物質の消臭分
解，防汚，滅菌などの環境浄化材としての利用が進みつ
つある。2. Description of the Related Art Photocatalysts are capable of removing harmful substances such as aldehydes and deodorizing and decomposing malodorous substances regulated by the Odor Prevention Law by the generation of hydroxyl radicals and superoxide anions on the surface of the photocatalyst by irradiation of ultraviolet rays. Its use as an environmental purification material such as antifouling and sterilization is increasing.
【０００３】これまで、光触媒の活性維持および再生方
法がいくつか提案されており、その概要を説明する。特
開平１０−１５１３５４号には、光触媒の再生方法が記
述されており、液体中の有機物等の光化学反応処理に使
用して、硬度成分が付着することにより活性低下を起こ
し始めた光触媒を酸溶液で洗浄することで、カルシウム
やマグネシウムを除去し、光触媒機能を再生する方法が
提案されている。Several methods for maintaining and regenerating the activity of a photocatalyst have been proposed so far, and the outline thereof will be described. JP-A-10-151354 describes a method for regenerating a photocatalyst. The photocatalyst used in a photochemical reaction treatment of an organic substance or the like in a liquid is used as an acid solution. A method has been proposed in which calcium and magnesium are removed by washing with water to regenerate the photocatalytic function.
【０００４】また、特開平１０−３０５２１４号には、
二酸化チタンを主成分としたシートを用いてＮＯＸ除去
を実施したのち、定期的に光触媒シートを洗浄し、その
表面に吸着した酸化性物質を溶出させた上で、さらに光
触媒シートにアルカリ材を添加して、光触媒の除染機能
を高める記述がある。Japanese Patent Application Laid-Open No. Hei 10-305214 discloses that
After removing NOx using a sheet containing titanium dioxide as the main component, the photocatalyst sheet is periodically washed to elute the oxidizing substance adsorbed on the surface, and then an alkali material is added to the photocatalyst sheet. Then, there is a description that enhances the decontamination function of the photocatalyst.
【０００５】また、特開平１０−２８８７８号では、触
媒の活性低下を防止することを目的として触媒近傍に、
被毒物質を除去するよう光触媒を配置する記述がされて
いる。In Japanese Patent Application Laid-Open No. 10-28878, for the purpose of preventing the activity of the catalyst from decreasing, the vicinity of the catalyst is
There is a description of placing a photocatalyst to remove poisons.
【０００６】[0006]
【発明が解決しようとする課題】吸着性能の高い光触媒
を塗布された部材においては、貯蔵中あるいは輸送中に
太陽光にさらされることは少なく、酸化チタン表面に
は、空気中に含まれる有機ガスを吸着する可能性が高
い。特に、このような貯蔵中あるいは輸送中において
は、油等の汚泥物質が多く、その為に汚れが付着しやす
い。このような環境で光触媒を塗布した部材を設置した
場合、太陽光が照射されれば、光触媒反応が進行し、光
触媒としての機能を発現するが、効果的な機能の発揮を
期待することができない。In a member coated with a photocatalyst having high adsorption performance, the member is rarely exposed to sunlight during storage or transportation, and the surface of the titanium oxide has an organic gas contained in the air. Is likely to adsorb. In particular, during such storage or transportation, there are many sludge substances such as oil, and therefore, dirt tends to adhere. When a member coated with a photocatalyst is installed in such an environment, if sunlight is irradiated, a photocatalytic reaction proceeds, and a function as a photocatalyst is developed, but it is not expected to exhibit an effective function. .
【０００７】上記の特開平１０−１５１３５４号、特開
平１０−３０５２１４号では、使用後の光触媒の再生を
主体として記述されており、本特許が解決する極めて有
害物質除去機能に優れる光触媒を、予めコーティング処
理を実施した部材が、太陽光などの光照射を受けない状
態下においても、適用・設置した場所において短時間に
機能を回復する技術とは作用が全く異なる。In the above-mentioned JP-A-10-151354 and JP-A-10-305214, the regeneration of a photocatalyst after use is mainly described, and a photocatalyst which is extremely excellent in a function of removing harmful substances which is solved by the present patent is described in advance. Even when the member that has been subjected to the coating treatment is not subjected to light irradiation such as sunlight, the operation is completely different from the technology of recovering the function in a short time at the place where the member is applied and installed.
【０００８】また、特開平１０−２８８７８号では、光
触媒の分解性能を利用し、触媒の活性維持・再生を行っ
たものであり、本法が提案する光触媒を塗布した部材の
貯蔵並びに輸送などにおける環境において光触媒機能を
維持する技術とは全く関係がない。In Japanese Patent Application Laid-Open No. H10-28878, the activity of the catalyst is maintained and regenerated by utilizing the decomposition performance of the photocatalyst. It has nothing to do with the technology that maintains the photocatalytic function in the environment.
【０００９】本発明は上記種々の問題点を解消すべくな
されたものであり、本発明の目的は、活性の高い光触媒
を塗布した部材を、貯蔵、輸送中に有機ガスの付着を防
止し、施工後または一定の期間保持された状態において
も、簡便に光触媒機能を保持させることにある。また、
本発明の目的は、塗布した水溶性化合物表面に付着した
汚れを、水溶性化合物とともに除去する方法を提供する
ことである。The present invention has been made to solve the above-mentioned various problems, and an object of the present invention is to prevent a member coated with a highly active photocatalyst from adhering an organic gas during storage and transportation. The purpose is to easily maintain the photocatalytic function even after the application or in a state where the photocatalytic function is maintained for a certain period. Also,
An object of the present invention is to provide a method for removing dirt attached to the surface of a water-soluble compound applied together with the water-soluble compound.
【００１０】[0010]
【課題を解決するための手段】上記課題を解決するた
め、光触媒を塗布した部材に水溶性化合物を塗布するこ
とで、貯蔵中、輸送中の有機ガスの吸着を防止し、所定
場所への設置・取り付けたのち、水で水溶性化合物を洗
浄し、光触媒機能を復元することおよび部材表面に付着
した汚れを水溶性化合物とともに除去するように構成さ
れている。In order to solve the above-mentioned problems, a water-soluble compound is applied to a member coated with a photocatalyst to prevent adsorption of organic gas during storage and transportation, and to be installed at a predetermined place. After installation, the water-soluble compound is washed with water to restore the photocatalytic function, and dirt attached to the member surface is removed together with the water-soluble compound.
【００１１】また本発明において、光触媒であればいず
れでも可能であるが、アモルファス型酸化チタン，アナ
ターゼ型酸化チタン，ブルッカイト型酸化チタン，ルチ
ル型酸化チタン，酸化亜鉛，ジルコニア，チタン酸バリ
ウム，チタン酸ストロンチウム，酸化タングステン，酸
化マンガン，酸化ルテニウム，硫化カドミウムが望まし
い。特に、安全性、薬品との耐久性、透明性などによ
り、アモルファス型酸化チタン，アナターゼ型酸化チタ
ン，ブルッカイト型酸化チタン，ルチル型酸化チタンが
最適である。In the present invention, any photocatalyst can be used, but amorphous titanium oxide, anatase titanium oxide, brookite titanium oxide, rutile titanium oxide, zinc oxide, zirconia, barium titanate, titanic acid Strontium, tungsten oxide, manganese oxide, ruthenium oxide, and cadmium sulfide are preferred. In particular, amorphous titanium oxide, anatase titanium oxide, brookite titanium oxide, and rutile titanium oxide are most suitable in terms of safety, durability with chemicals, transparency, and the like.
【００１２】また、これらの本発明の方法において光触
媒に白金，金，銀，銅，ナトリウム，マグネシウム，ア
ルミニウムカリウム，カルシウム，バナジウム，クロ
ム，マンガン，コバルト，ニッケル，亜鉛，セレン，ジ
ルコニウム，モリブデン，パラジウム，スズ，ハフニウ
ム，タングステンなどの金属、シリカ，アルミナ，ゼオ
ライトなど無機物、ポリメタクリ酸樹脂，フッ素樹脂，
芳香族系有機高分子など有機・無機高分子の少なくとも
いずれかを添加することができる。金属を添加すること
で、光励起により発生するラジカル数の増大やラジカル
の失活を抑制することができる。また、無機物や有機高
分子を添加することで、コーティング面の透明度，光
沢，密着度などの物理特性を向上することが可能であ
る。In the method of the present invention, platinum, gold, silver, copper, sodium, magnesium, aluminum potassium, calcium, vanadium, chromium, manganese, cobalt, nickel, zinc, selenium, zirconium, molybdenum, palladium are used as photocatalysts. , Tin, hafnium, tungsten and other metals, silica, alumina, zeolite and other inorganic materials, polymethacrylate resin, fluororesin,
At least one of organic and inorganic polymers such as aromatic organic polymers can be added. By adding a metal, an increase in the number of radicals generated by photoexcitation and inactivation of radicals can be suppressed. Further, by adding an inorganic substance or an organic polymer, it is possible to improve physical properties such as transparency, gloss and adhesion of the coated surface.
【００１３】また、これらの本発明の方法において水溶
性化合物として、炭水化物，アミノ酸，セルロース誘導
体，水溶性ポリマー，界面活性剤、水酸化物のいずれか
またはこれらを組み合わせたものを使用することができ
る。特に、でんぷん，蔗糖などの糖類、カルボキシメチ
ルセルロース，ヒドロキシエチルセルロース，ヒドロキ
シプロピルセルロース，メチルセルロース，エチルセル
ロース，エチルヒドロキシエチルセルロース，カルボキ
シメチルエチルセルロースなどのセルロース誘導体、カ
ルボン酸エステル型，リン酸エステル型，硫酸エステル
型，スルホン酸エステル型の陰イオン界面活性剤、カル
ボキシベタイン型，アミノカルボン酸塩型の両性界面活
性剤の使用が望ましい。さらに、例えば、でんぷん，蔗
糖，カルボキシメチルセルロースなどの食品添加物とし
て使用が認められているものが、環境への配慮から望ま
しい。In the method of the present invention, any of a carbohydrate, an amino acid, a cellulose derivative, a water-soluble polymer, a surfactant, a hydroxide or a combination thereof can be used as the water-soluble compound. . In particular, sugars such as starch and sucrose, cellulose derivatives such as carboxymethylcellulose, hydroxyethylcellulose, hydroxypropylcellulose, methylcellulose, ethylcellulose, ethylhydroxyethylcellulose, carboxymethylethylcellulose, carboxylic acid ester type, phosphate ester type, sulfate ester type, sulfone It is preferable to use an acid ester type anionic surfactant, a carboxybetaine type or an aminocarboxylate type amphoteric surfactant. Further, for example, food additives such as starch, sucrose, carboxymethylcellulose, and the like, which are approved for use as food additives, are desirable in consideration of the environment.
【００１４】これらを塗布する条件としては、光触媒を
塗布して乾燥した直後であれば特に問題ないが、紫外線
を光触媒に数時間照射し、炭酸ガスの発生を検知しなく
なったとき、つまり残存する有機物の存在がないことを
確認した後が特に望ましい。乾燥が不十分であれば、光
触媒と水溶性化合物の間に有機物をはさみこんでしま
い、復元後の活性が十分得られないことがある。The conditions for applying these are not particularly limited as long as the photocatalyst is applied and immediately dried, but when the photocatalyst is irradiated with ultraviolet rays for several hours and the generation of carbon dioxide is no longer detected, that is, the photocatalyst remains. It is particularly desirable after confirming the absence of organic matter. If the drying is insufficient, an organic substance is interposed between the photocatalyst and the water-soluble compound, and the activity after restoration may not be sufficiently obtained.
【００１５】また、これらの本発明の方法において光触
媒が施工された複合材として、金属，セラミックス，プ
ラスチックス，ゴムのいずれかまたはこれらを組み合わ
せたもの、及び有機系または無機系の塗料を部材表面に
塗布したものを使用することができる。In the method of the present invention, as the composite material on which the photocatalyst is applied, any one of metal, ceramics, plastics, rubber, or a combination thereof, and an organic or inorganic paint are applied to the surface of the member. Can be used.
【００１６】また、これらの本発明の方法において、水
溶性化合物を溶解させる洗浄水の温度が２０℃から１０
０℃であることをが望ましい。温度が２０℃より小さい
場合、十分な溶解能力がない、温度が１００℃より大き
い場合、酸化チタンの結晶化、表面の気孔状態が変化
し、ガス除去を目的として使用した場合、吸着性が低下
する恐れもある。In the method of the present invention, the temperature of the washing water for dissolving the water-soluble compound is from 20 ° C. to 10 ° C.
Desirably, it is 0 ° C. When the temperature is lower than 20 ° C., there is no sufficient dissolving ability. When the temperature is higher than 100 ° C., crystallization of titanium oxide and the state of pores on the surface change, and when used for gas removal, the adsorptivity decreases. There is a risk of doing so.
【００１７】また、これらの本発明の方法において、水
溶性化合物を溶解させる洗浄水の水素イオン濃度は、状
況によりいずれも使用可能であるが、望ましくは２から
１０さらに望ましくは６．５〜７．５であることをが望
ましい。水素イオン濃度が２より小さい場合、金属を腐
食させる、水素イオン濃度が１０より高い場合はガラス
などセラミックスを溶解させてしまう危険がある。In these methods of the present invention, the hydrogen ion concentration of the washing water for dissolving the water-soluble compound can be used depending on the situation, but is preferably 2 to 10, more preferably 6.5 to 7. .5. When the hydrogen ion concentration is less than 2, there is a risk of corroding metals, and when the hydrogen ion concentration is higher than 10, there is a risk of dissolving ceramics such as glass.
【００１８】[0018]
【発明の実施の形態】次に、発明の実施形態について説
明する。本実施の形態では、一例として酸化チタンを塗
布したタイルに水溶性化合物を塗布することで、貯蔵
中、輸送中の有機ガスの吸着を防止し、所定場所への設
置・取り付けたのち、水で水溶性化合物を洗浄し、光触
媒機能を復元することおよび部材表面に付着した汚れを
水溶性化合物とともに除去を可能としており、他の光触
媒、部材、水溶性化合物であれば他の物質を使用するこ
とが勿論可能である。Next, embodiments of the present invention will be described. In this embodiment, by applying a water-soluble compound to a tile coated with titanium oxide as an example, during storage, adsorption of organic gas during transportation is prevented, and after installation / attachment to a predetermined place, water is applied. Washing the water-soluble compound to restore the photocatalytic function and removing dirt attached to the surface of the member together with the water-soluble compound, and using other photocatalysts, members, and other substances if the compound is a water-soluble compound Is of course possible.
【００１９】光触媒であればいずれも可能であるが、ア
モルファス型酸化チタン，アナターゼ型酸化チタン，ブ
ルッカイト型酸化チタン，ルチル型酸化チタン，酸化亜
鉛，ジルコニア，チタン酸バリウム，チタン酸ストロン
チウム，酸化タングステン，酸化マンガン，酸化ルテニ
ウム，硫化カドミウムが望ましい。特に、安全性、薬品
との耐久性、透明性などにより、アモルファス型酸化チ
タン，アナターゼ型酸化チタン，ブルッカイト型酸化チ
タン，ルチル型酸化チタンなどがあげられる。Any photocatalyst can be used, but amorphous titanium oxide, anatase titanium oxide, brookite titanium oxide, rutile titanium oxide, zinc oxide, zirconia, barium titanate, strontium titanate, tungsten oxide, Manganese oxide, ruthenium oxide and cadmium sulfide are preferred. In particular, amorphous titanium oxide, anatase type titanium oxide, brookite type titanium oxide, rutile type titanium oxide, etc. can be mentioned depending on safety, durability against chemicals, transparency and the like.
【００２０】光触媒に白金，金，銀，銅，ナトリウム，
マグネシウム，アルミニウムカリウム，カルシウム，バ
ナジウム，クロム，マンガン，コバルト，ニッケル，亜
鉛，セレン，ジルコニウム，モリブデン，パラジウム，
スズ，ハフニウム，タングステンなどの金属、シリカ，
アルミナ，ゼオライトなど無機物、ポリメタクリ酸樹
脂，フッ素樹脂，芳香族系有機高分子など有機・無機高
分子などの少なくともいずれかを添加することができ
る。Platinum, gold, silver, copper, sodium,
Magnesium, aluminum potassium, calcium, vanadium, chromium, manganese, cobalt, nickel, zinc, selenium, zirconium, molybdenum, palladium,
Metals such as tin, hafnium and tungsten, silica,
At least one of inorganic substances such as alumina and zeolite, and organic and inorganic polymers such as polymethacrylic resin, fluororesin, and aromatic organic polymer can be added.
【００２１】また、これらの本発明の方法において水溶
性化合物として、炭水化化物，アミノ酸，セルロース誘
導体，水溶性ポリマー，界面活性材，水酸化物のいずれ
かまたはこれらを組み合わせたものを使用することがで
きる。特に、でんぷん，蔗糖などの糖類、カルボキシメ
チルセルロース，ヒドロキシエチルセルロース，ヒドロ
キシプロピルセルロース，メチルセルロース，エチルセ
ルロース，エチルヒドロキシエチルセルロース，カルボ
キシメチルエチルセルロースなどのセルロース誘導遺
体、カルボン酸エステル型，リン酸エステル型，硫酸エ
ステル型，スルホン酸エステル型の陰イオン界面活性
剤、カルボキシベタイン型，アミノカルボン酸塩型の両
性界面活性剤の使用が望ましい。さらに特には、でんぷ
ん，蔗糖，カルボキシメチルセルロースなどの食品添加
物として使用が認められているものが、環境への配慮か
ら望ましい。In the method of the present invention, a carbohydrate, an amino acid, a cellulose derivative, a water-soluble polymer, a surfactant, a hydroxide or a combination thereof is used as the water-soluble compound. be able to. In particular, sugars such as starch and sucrose, cellulose derivatives such as carboxymethylcellulose, hydroxyethylcellulose, hydroxypropylcellulose, methylcellulose, ethylcellulose, ethylhydroxyethylcellulose, carboxymethylethylcellulose, carboxylate ester type, phosphate ester type, sulfate ester type, It is desirable to use sulfonic acid ester type anionic surfactants, carboxybetaine type and aminocarboxylate type amphoteric surfactants. More particularly, those approved for use as food additives such as starch, sucrose, carboxymethylcellulose and the like are desirable in consideration of the environment.
【００２２】光触媒が施工された複合材として、金属，
セラミックス，プラスチックス，ゴムのいずれかまたは
これらを組み合わせたもの及び、有機または無機系の塗
料を部材表面に塗布したものを使用することができる。
水溶性化合物を溶解させる洗浄水の温度が２０℃から１
００℃であることをが望ましい。水溶性化合物の除去作
業時間、光触媒機能の目的機能により洗浄水の温度を選
択することができる。洗浄水の温度が高いほど、洗浄に
かかる時間が短く済むが、１００℃を越えると部材が軟
化，溶解するなどの悪影響が生じ、１００℃以上であれ
ば水は蒸気となり洗浄が難しい。さらに、酸化チタンの
結晶化、表面の気孔状態が変化することが懸念される。
また、高温水の製造が困難であるため１００℃以下が望
ましい。As a composite material on which a photocatalyst is applied, metal,
Any one of ceramics, plastics, rubber, or a combination thereof, and one obtained by applying an organic or inorganic paint to the surface of the member can be used.
The temperature of the washing water for dissolving the water-soluble compound is from 20 ° C to 1
Desirably, it is 00 ° C. The temperature of the washing water can be selected according to the operation time for removing the water-soluble compound and the intended function of the photocatalytic function. The higher the temperature of the washing water, the shorter the time required for washing. However, if the temperature exceeds 100 ° C., adverse effects such as softening and dissolution of the member occur. Further, there is a concern that crystallization of titanium oxide and a change in the pore state of the surface may occur.
Further, it is desirable that the temperature be 100 ° C. or less because production of high-temperature water is difficult.
【００２３】そして、洗浄水の温度が低いほど、溶解能
力が低く、洗浄にかかる時間が長くなってしまうため、
２０℃以上が望ましい。従って、２０℃から１００℃ま
での間で、作業工程、部材の熱的安定性などを考慮し、
洗浄水温度を確保するためのコストなどから最適の温度
を選択することが可能である。水溶性化合物を溶解させ
る洗浄水の水素イオン濃度は状況についても、使用する
部材と作業時間を合わせ検討することができ、いずれの
水素イオン濃度でも使用することが可能である。The lower the temperature of the washing water, the lower the dissolving ability and the longer the time required for washing.
20 ° C or higher is desirable. Therefore, between 20 ° C and 100 ° C, considering the working process, the thermal stability of the members, etc.
The optimum temperature can be selected from the cost for securing the temperature of the washing water. Regarding the hydrogen ion concentration of the washing water for dissolving the water-soluble compound, it is possible to examine the situation in consideration of the members used and the operation time, and it is possible to use any hydrogen ion concentration.
【００２４】[0024]
【実施例１】市販タイル（４５mm×９５mm）４枚にアナ
ターゼ型酸化チタンをスプレー塗布し、１１０℃、３０
分処理した。４枚のタイルへの塗布量は５ｍｇである。
石英製のフラスコ内に光触媒を塗布したタイルを入れ、
アセトアルデヒドガス（以下「ＡＡ」という。）を１０
０ｐｐｍ注入し、３０分保持した。その後ＢＬＢ灯（主
波長３６５ｎｍ）を０．６ｍｗ／ｃｍ２となる様照射し
た。フラスコ内の気相中のアセトアルデヒドガスおよび
炭酸ガスをＧＣ−ＦＩＤにて定量した。Example 1 Anatase type titanium oxide was spray-coated on four commercially available tiles (45 mm × 95 mm),
Minutes. The amount applied to the four tiles is 5 mg.
Put the tile coated with photocatalyst in a quartz flask,
Acetaldehyde gas (hereinafter referred to as “AA”) is 10
0 ppm was injected and held for 30 minutes. Thereafter, irradiation was performed with a BLB lamp (main wavelength: 365 nm) so as to have a wavelength of 0.6 mw / cm 2. Acetaldehyde gas and carbon dioxide gas in the gas phase in the flask were quantified by GC-FID.
【００２５】図１に光触媒を未処理タイルおよび塗布タ
イルの試験結果を示す。照射２０分後のＡＡ残存率
（％）およびＣＯ２への転換率（％）を比較すると、無
塗布タイルでは、８８．９％、１．２％であり、一方塗
布タイルでは、０．５％、８９％であった。このタイル
をポリエチレン袋にいれ暗所で、６ヶ月間保管した後同
様の試験を実施したところ、ＡＡ残存率（％）およびＣ
Ｏ２への転換率（％）は９３．３％、２２．０％であっ
た。FIG. 1 shows the test results of a tile not treated with a photocatalyst and a tile coated with the photocatalyst. A comparison of the AA residual rate (%) and the conversion rate to CO2 (%) after 20 minutes of irradiation is 88.9% and 1.2% for the uncoated tile, and 0.5% for the coated tile. , 89%. The same test was carried out after storing the tile in a polyethylene bag in a dark place for 6 months.
The conversion to O2 (%) was 93.3% and 22.0%.
【００２６】[0026]
【実施例２】図２に実施例１記載の内容にて説明した光
触媒保持材について、説明する。同図に示すように、部
材１に光触媒２を塗布し、でんぷん水溶液を塗布し乾燥
した後、ポリエチレン袋に入れ、暗所にて６ヶ月保持し
た。試験片を温度３０℃の水に、ｐＨ６．５にて１０分
間洗浄した。洗浄後の試験片を実施例１記載のＡＡ分解
活性を測定したところ、ＡＡ残存率（％）およびＣＯ２
への転換率（％）は、０．８％、８５％であり、光触媒
活性時の性能が保持された。なお、上記に説明した部材
は、タイルに限定するものではなく、壁材，ガラス板，
瓦など有機系、無機系を含む建築部材にも適用可能であ
る。[Embodiment 2] The photocatalyst holding material described in the contents of Embodiment 1 will be described with reference to FIG. As shown in the figure, a photocatalyst 2 was applied to the member 1, an aqueous starch solution was applied and dried, then put in a polyethylene bag, and kept in a dark place for 6 months. The test piece was washed in water at a temperature of 30 ° C. at pH 6.5 for 10 minutes. When the AA decomposition activity described in Example 1 was measured on the washed test piece, the AA remaining rate (%) and CO2
The conversion rate (%) to 0.8% and 85% was maintained at the time of photocatalytic activity. The members described above are not limited to tiles, but include wall materials, glass plates,
It is also applicable to building materials including organic and inorganic materials such as tiles.
【００２７】[0027]
【比較例１】実施例１で暗所に保管したタイルを太陽光
下で６ｈ放置した後、ＡＡ分解性能を測定した。照射前
のＡＡ残存率９３．３％、ＣＯ２への転換率２２．０％
が、照射によりＡＡ残存率（％）、ＣＯ２への転換率
は、１３．３％、５２．１％となり、光触媒活性時の性
能が復元された。Comparative Example 1 The tiles stored in a dark place in Example 1 were left under sunlight for 6 hours, and then the AA decomposition performance was measured. AA residual rate before irradiation 93.3%, conversion rate to CO2 22.0%
However, by irradiation, the AA remaining rate (%) and the conversion rate to CO2 became 13.3% and 52.1%, and the performance at the time of photocatalytic activity was restored.
【００２８】以上説明した実施例、比較例におけるガス
濃度の測定条件は下記に示すとおりである。 （１）ガス濃度の測定条件 アセトアルデヒド：ＧＣ−ＦＩＤ（水素炎イオン化検出器）式 カラム：ＤＢ−ＷＡＸ（直径０．２５μｍ、長さ３０m） キャリアガス流量：４１ml/分（Ｈｅ） スプリット比：１／４０（メイクアップガスＨｅ使用） カラム温度：１００℃ インジェクション温度：２３０℃ 検出器温度：２５０℃ ＣＯ２ ：ＧＣ−ＦＩＤ（水素炎イオン化検出器）式 メタナイザ(MTN-1)、４００℃にて前処理実施。 カラム：ポラパックＱ キャリアガス流量：５０ml/分（水素） カラム温度：５０℃ インジェクション温度：２３０℃ 検出器温度：１００℃The measurement conditions of the gas concentration in the above-described Examples and Comparative Examples are as shown below. (1) Measurement conditions of gas concentration Acetaldehyde: GC-FID (flame flame ionization detector) type Column: DB-WAX (diameter 0.25 μm, length 30 m) Carrier gas flow rate: 41 ml / min (He) Split ratio: 1 / 40 (using make-up gas He) Column temperature: 100 ° C Injection temperature: 230 ° C Detector temperature: 250 ° C CO2: GC-FID (flame flame ionization detector) type Metanizer (MTN-1), before 400 ° C Processing implementation. Column: Polapack Q Carrier gas flow rate: 50 ml / min (hydrogen) Column temperature: 50 ° C Injection temperature: 230 ° C Detector temperature: 100 ° C
【００２９】[0029]
【発明の効果】本発明は上記のように構成されているの
で、次のような効果を奏する。 （１）活性の高い光触媒を塗布した部材を、貯蔵、輸送
中に有機ガスの付着を防止し、施工後または一定の期間
保持された状態においても、簡便に光触媒機能を復元さ
せることができる。 （２）塗布した水溶性化合物表面に付着した汚れを、水
溶性化合物とともに除去することができ、汚れ防止効果
がある。As described above, the present invention has the following advantages. (1) A member coated with a photocatalyst having high activity can prevent organic gas from adhering during storage and transportation, and can easily restore the photocatalytic function even after construction or in a state where the member is held for a certain period of time. (2) Dirt adhering to the surface of the applied water-soluble compound can be removed together with the water-soluble compound, and has an effect of preventing dirt.
【図面の簡単な説明】[Brief description of the drawings]
【図１】本発明による実施例１において、光触媒を塗布
したタイルのアセトアルデヒドの分解特性を示すグラフ
である。FIG. 1 is a graph showing acetaldehyde decomposition characteristics of a tile coated with a photocatalyst in Example 1 according to the present invention.
【図２】本発明による実施例２での部材、光触媒、水溶
性化合物の構成を示したものである。FIG. 2 shows a structure of a member, a photocatalyst, and a water-soluble compound in Example 2 according to the present invention.
１ 部材 ２ 光触媒 ３ 水溶性化合物 1 member 2 photocatalyst 3 water-soluble compound
───────────────────────────────────────────────────── フロントページの続き (72)発明者 村上 明宏 兵庫県明石市川崎町１番１号 川崎重工業 株式会社明石工場内 (72)発明者 坂井 憲吉 東京都港区浜松町２丁目４番１号 川崎重 工業株式会社東京本社内 Ｆターム(参考） 4D048 AA19 AA22 AB03 BA01Y BA02Y BA03Y BA06Y BA07X BA08Y BA11Y BA14Y BA15Y BA16Y BA21Y BA23Y BA25Y BA26Y BA27Y BA28Y BA30Y BA31Y BA32Y BA34Y BA35Y BA37Y BA38Y BA41X BA42Y BA46Y BB03 BC07 CA01 EA01 4G069 AA03 AA08 BA01A BA02A BA04A BA04B BA05A BA07A BA21C BA22A BA22C BA29C BA48A BB02A BB04A BB07A BB09A BB20A BC02A BC03A BC09A BC10A BC12A BC13A BC16A BC22A BC24A BC31A BC32A BC33A BC35A BC36A BC50A BC51A BC52A BC54A BC58A BC59A BC60A BC62A BC67A BC68A BC70A BC72A BC75A BE05C BE08A BE13C BE34A BE37A CA10 CA17 DA05 EA11 EC22X EC26 EE01 FA03 FA10 FB23 FB27 FC04 FC07 FC09 ZA01A ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Akihiro Murakami 1-1, Kawasaki-cho, Akashi-shi, Hyogo Kawasaki Heavy Industries, Ltd. Inside Akashi Factory (72) Inventor Kenkichi Sakai 2-4-1, Hamamatsucho, Minato-ku, Tokyo Kawasaki Heavy Industries, Ltd. Tokyo headquarters F-term (reference) 4D048 AA19 AA22 AB03 BA01Y BA02Y BA03Y BA06Y BA07X BA08Y BA11Y BA14Y BA15Y BA16Y BA21Y BA23Y BA25Y BA26Y BA27Y BA28Y BA30Y BA31Y BA32Y BA34Y BA03 ABAY ABAY BA38Y BA01A BA02A BA04A BA04B BA05A BA07A BA21C BA22A BA22C BA29C BA48A BB02A BB04A BB07A BB09A BB20A BC02A BC03A BC09A BC10A BC12A BC13A BC16A BC22A BC24A BC31A BC32A BC33A BC35A BC36A BC50A BC51A BC52A BC54A BC58A BC59A BC60A BC62A BC67A BC68A BC70A BC72A BC75A BE05C BE08A BE13C BE34A BE37A CA10 CA17 DA05 EA11 EC22X EC26 EE01 FA03 FA10 FB23 FB2 7 FC04 FC07 FC09 ZA01A
Claims (8)
面に水溶性化合物をコーティングしたことを特徴とする
光触媒機能保持材。1. A photocatalytic function-holding material, wherein a water-soluble compound is coated on the surface of a member coated with a photocatalyst.
アナターゼ型酸化チタン、ブルッカイト型酸化チタン、
ルチル型酸化チタン、酸化亜鉛、ジルコニア、チタン酸
バリウム、チタン酸ストロンチウム、酸化タングステ
ン、酸化マンガン、酸化ルテニウム、硫化カドミウムな
どの半導体のいずれかまたはこれらを組み合わせ使用す
ることを特徴とする請求項１記載の光触媒機能保持材。2. An amorphous titanium oxide as a photocatalyst,
Anatase type titanium oxide, brookite type titanium oxide,
2. A semiconductor according to claim 1, wherein said semiconductor is any one of rutile-type titanium oxide, zinc oxide, zirconia, barium titanate, strontium titanate, tungsten oxide, manganese oxide, ruthenium oxide, cadmium sulfide and the like. Photocatalyst function holding material.
マグネシウム、アルミニウムカリウム、カルシウム、バ
ナジウム、クロム、マンガン、コバルト、ニッケル、亜
鉛、セレン、ジルコニウム、モリブデン、パラジウム、
スズ、ハフニウム、タングステンなどの金属、シリカ、
アルミナ、ゼオライトなど無機物、ポリメタクリ酸樹
脂、フッ素樹脂、芳香族系有機高分子など有機・無機高
分子のいずれかまたはこれらを組み合わせたものを添加
することを特徴とする請求項１〜２のいずれか記載の光
触媒機能保持材。3. A photocatalyst comprising platinum, gold, silver, copper, sodium,
Magnesium, aluminum potassium, calcium, vanadium, chromium, manganese, cobalt, nickel, zinc, selenium, zirconium, molybdenum, palladium,
Metals such as tin, hafnium and tungsten, silica,
An inorganic substance such as alumina or zeolite, a polymethacrylic resin, a fluororesin, or an organic or inorganic polymer such as an aromatic organic polymer or a combination thereof is added. The photocatalytic function-holding material according to the above.
酸、セルロース誘導体、水溶性ポリマー、界面活性材、
水酸化物のいずれかまたはこれらを組み合わせたもので
光触媒層を塗布することを特徴とする求項１〜３のいず
れか記載の光触媒機能保持材。4. The water-soluble compound includes carbohydrates, amino acids, cellulose derivatives, water-soluble polymers, surfactants,
4. The photocatalytic function-holding material according to any one of claims 1 to 3, wherein the photocatalytic layer is coated with any one of hydroxides or a combination thereof.
セラミックス、プラスチックス、ゴムのいずれかまたは
これらを組み合わせたもの及び、有機または無機系の塗
料を部材表面に塗布したものであることを特徴とする請
求項１〜４のいずれか記載の光触媒機能保持材。5. A composite material on which a photocatalyst has been applied, a metal,
The photocatalyst function retention according to any one of claims 1 to 4, wherein the member is made of any one of ceramics, plastics, and rubber, or a combination thereof, and an organic or inorganic paint applied to the surface of the member. Wood.
20℃から100℃であることを特徴とする請求項１〜５の
いずれか記載の光触媒機能保持材。6. The temperature of washing water for dissolving a water-soluble compound is as follows:
The photocatalytic function-holding material according to any one of claims 1 to 5, wherein the temperature is 20 ° C to 100 ° C.
オン濃度が、１から１４であることを特徴とする請求項
１〜６のいずれか記載の光触媒機能保持材。7. The photocatalytic function-holding material according to claim 1, wherein the hydrogen ion concentration of the washing water for dissolving the water-soluble compound is 1 to 14.
面に水溶性化合物をコーティングし、設置されたのちに
水を噴霧することにより、光触媒活性を長期に維持する
ようにした光触媒機能の保持方法。8. A method for retaining a photocatalytic function, in which a water-soluble compound is coated on the surface of a member coated with a photocatalyst, and water is sprayed after the coating, whereby the photocatalytic activity is maintained for a long time.
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|---|---|---|---|
| JP2000156469A JP2001334148A (en) | 2000-05-26 | 2000-05-26 | Material for holding photocatalytic function and method of holding photocatalytic function |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000156469A JP2001334148A (en) | 2000-05-26 | 2000-05-26 | Material for holding photocatalytic function and method of holding photocatalytic function |
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| Publication Number | Publication Date |
|---|---|
| JP2001334148A true JP2001334148A (en) | 2001-12-04 |
Family
ID=18661260
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
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| JP (1) | JP2001334148A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100351013C (en) * | 2006-02-27 | 2007-11-28 | 西安交通大学 | CdS/Ti-MCM-41 loaded platinum photo catalyst and its preparation method |
| CN103272647A (en) * | 2013-05-11 | 2013-09-04 | 台州学院 | Preparation method of cellulose-based ZnO-CdS compound light catalyst for dye decolorization |
| CN104275182A (en) * | 2014-09-19 | 2015-01-14 | 安徽工程大学 | Titanium dioxide/copper oxide nano composite material, as well as preparation method and application thereof |
| WO2018001176A1 (en) * | 2016-06-27 | 2018-01-04 | 中国科学院金属研究所 | Preparation method for controllable growth of heterogeneous seed mesoporous monocrystalline rutile titanium dioxide |
| WO2022047813A1 (en) * | 2020-09-01 | 2022-03-10 | 中认英泰检测技术有限公司 | Organic wastewater treatment method based on multi-element co-doped tio2 nano photocatalytic material |
| CN114308103A (en) * | 2021-12-24 | 2022-04-12 | 西安理工大学 | Preparation method of porous cellulose palladium-loaded composite material for sewage treatment |
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2000
- 2000-05-26 JP JP2000156469A patent/JP2001334148A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100351013C (en) * | 2006-02-27 | 2007-11-28 | 西安交通大学 | CdS/Ti-MCM-41 loaded platinum photo catalyst and its preparation method |
| CN103272647A (en) * | 2013-05-11 | 2013-09-04 | 台州学院 | Preparation method of cellulose-based ZnO-CdS compound light catalyst for dye decolorization |
| CN104275182A (en) * | 2014-09-19 | 2015-01-14 | 安徽工程大学 | Titanium dioxide/copper oxide nano composite material, as well as preparation method and application thereof |
| WO2018001176A1 (en) * | 2016-06-27 | 2018-01-04 | 中国科学院金属研究所 | Preparation method for controllable growth of heterogeneous seed mesoporous monocrystalline rutile titanium dioxide |
| WO2022047813A1 (en) * | 2020-09-01 | 2022-03-10 | 中认英泰检测技术有限公司 | Organic wastewater treatment method based on multi-element co-doped tio2 nano photocatalytic material |
| US11534741B2 (en) | 2020-09-01 | 2022-12-27 | Cqc Intime Testing Technology Co., Ltd. | Organic wastewater treatment method based on multi-element co-doping TiO2 nano photocatalytic material |
| CN114308103A (en) * | 2021-12-24 | 2022-04-12 | 西安理工大学 | Preparation method of porous cellulose palladium-loaded composite material for sewage treatment |
| CN114308103B (en) * | 2021-12-24 | 2023-07-18 | 西安理工大学 | Preparation method of porous cellulose palladium-loaded composite material for sewage treatment |
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