JPS6219245A - Optically functional film - Google Patents
Optically functional filmInfo
- Publication number
- JPS6219245A JPS6219245A JP60159524A JP15952485A JPS6219245A JP S6219245 A JPS6219245 A JP S6219245A JP 60159524 A JP60159524 A JP 60159524A JP 15952485 A JP15952485 A JP 15952485A JP S6219245 A JPS6219245 A JP S6219245A
- Authority
- JP
- Japan
- Prior art keywords
- semiconductor
- film
- optically functional
- functional film
- soln
- 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.)
- Granted
Links
- 239000004065 semiconductor Substances 0.000 claims abstract description 34
- 239000000084 colloidal system Substances 0.000 claims abstract description 10
- 238000006243 chemical reaction Methods 0.000 abstract description 13
- 229910052751 metal Inorganic materials 0.000 abstract description 8
- 239000002184 metal Substances 0.000 abstract description 8
- 239000002245 particle Substances 0.000 abstract description 6
- 239000011148 porous material Substances 0.000 abstract description 5
- 239000010419 fine particle Substances 0.000 abstract description 4
- 229910052697 platinum Inorganic materials 0.000 abstract description 4
- 230000032683 aging Effects 0.000 abstract description 3
- 230000003197 catalytic effect Effects 0.000 abstract description 3
- 238000001914 filtration Methods 0.000 abstract description 3
- 229910052763 palladium Inorganic materials 0.000 abstract description 3
- 238000009826 distribution Methods 0.000 abstract description 2
- 229910052741 iridium Inorganic materials 0.000 abstract description 2
- 150000002739 metals Chemical class 0.000 abstract description 2
- 229910052703 rhodium Inorganic materials 0.000 abstract description 2
- 229910052707 ruthenium Inorganic materials 0.000 abstract description 2
- 238000010438 heat treatment Methods 0.000 abstract 1
- 238000000926 separation method Methods 0.000 abstract 1
- 238000010189 synthetic method Methods 0.000 abstract 1
- 239000012528 membrane Substances 0.000 description 14
- 239000000243 solution Substances 0.000 description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 11
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 8
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 7
- 239000001257 hydrogen Substances 0.000 description 7
- 229910052739 hydrogen Inorganic materials 0.000 description 7
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 6
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 5
- 239000007864 aqueous solution Substances 0.000 description 5
- 239000000843 powder Substances 0.000 description 5
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 4
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 4
- 239000004372 Polyvinyl alcohol Substances 0.000 description 4
- 229920000642 polymer Polymers 0.000 description 4
- 229920002451 polyvinyl alcohol Polymers 0.000 description 4
- 235000019422 polyvinyl alcohol Nutrition 0.000 description 4
- 239000004408 titanium dioxide Substances 0.000 description 4
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 3
- 239000003054 catalyst Substances 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 229910021645 metal ion Inorganic materials 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000011941 photocatalyst Substances 0.000 description 3
- 238000003786 synthesis reaction Methods 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- CIWBSHSKHKDKBQ-JLAZNSOCSA-N Ascorbic acid Chemical compound OC[C@H](O)[C@H]1OC(=O)C(O)=C1O CIWBSHSKHKDKBQ-JLAZNSOCSA-N 0.000 description 2
- 239000002028 Biomass Substances 0.000 description 2
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 239000012153 distilled water Substances 0.000 description 2
- 239000011521 glass 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
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 150000002896 organic halogen compounds Chemical class 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 238000001308 synthesis method Methods 0.000 description 2
- XJDNKRIXUMDJCW-UHFFFAOYSA-J titanium tetrachloride Chemical compound Cl[Ti](Cl)(Cl)Cl XJDNKRIXUMDJCW-UHFFFAOYSA-J 0.000 description 2
- WUPHOULIZUERAE-UHFFFAOYSA-N 3-(oxolan-2-yl)propanoic acid Chemical compound OC(=O)CCC1CCCO1 WUPHOULIZUERAE-UHFFFAOYSA-N 0.000 description 1
- RZVAJINKPMORJF-UHFFFAOYSA-N Acetaminophen Chemical compound CC(=O)NC1=CC=C(O)C=C1 RZVAJINKPMORJF-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000003109 Disodium ethylene diamine tetraacetate Substances 0.000 description 1
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 description 1
- ZGTMUACCHSMWAC-UHFFFAOYSA-L EDTA disodium salt (anhydrous) Chemical compound [Na+].[Na+].OC(=O)CN(CC([O-])=O)CCN(CC(O)=O)CC([O-])=O ZGTMUACCHSMWAC-UHFFFAOYSA-L 0.000 description 1
- 108010010803 Gelatin Proteins 0.000 description 1
- KJTLSVCANCCWHF-UHFFFAOYSA-N Ruthenium Chemical compound [Ru] KJTLSVCANCCWHF-UHFFFAOYSA-N 0.000 description 1
- 229920002125 Sokalan® Polymers 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000001413 amino acids Chemical class 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 229960005070 ascorbic acid Drugs 0.000 description 1
- 235000010323 ascorbic acid Nutrition 0.000 description 1
- 239000011668 ascorbic acid Substances 0.000 description 1
- 229910052980 cadmium sulfide Inorganic materials 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 239000013522 chelant Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 235000019301 disodium ethylene diamine tetraacetate Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 229920000159 gelatin Polymers 0.000 description 1
- 239000008273 gelatin Substances 0.000 description 1
- 235000019322 gelatine Nutrition 0.000 description 1
- 235000011852 gelatine desserts Nutrition 0.000 description 1
- 238000005984 hydrogenation reaction Methods 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 210000000936 intestine Anatomy 0.000 description 1
- GKOZUEZYRPOHIO-UHFFFAOYSA-N iridium atom Chemical compound [Ir] GKOZUEZYRPOHIO-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000004584 polyacrylic acid Substances 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229920002689 polyvinyl acetate Polymers 0.000 description 1
- 239000011118 polyvinyl acetate Substances 0.000 description 1
- 229920000036 polyvinylpyrrolidone Polymers 0.000 description 1
- 239000001267 polyvinylpyrrolidone Substances 0.000 description 1
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000005297 pyrex Substances 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 239000010948 rhodium Substances 0.000 description 1
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- VEALVRVVWBQVSL-UHFFFAOYSA-N strontium titanate Chemical compound [Sr+2].[O-][Ti]([O-])=O VEALVRVVWBQVSL-UHFFFAOYSA-N 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
- -1 trichloroethylene, tetrachloroethylene Chemical group 0.000 description 1
- 235000021122 unsaturated fatty acids Nutrition 0.000 description 1
- 150000004670 unsaturated fatty acids Chemical class 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000002699 waste material 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/36—Hydrogen production from non-carbon containing sources, e.g. by water electrolysis
Abstract
Description
【発明の詳細な説明】
〔技術分野〕
本発明は、多孔性膜に半導体コロイドを保持させてなる
光機能性膜に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to a photofunctional film formed by holding a semiconductor colloid in a porous film.
半導体電極により水を光分解して水素と酸素を得る方法
が発表されて以来、半導体光触媒の開発が盛んである。Semiconductor photocatalysts have been actively developed ever since a method for photolyzing water using semiconductor electrodes to obtain hydrogen and oxygen was announced.
半導体光触媒の応用例としては、バイオマスを光分解し
て水素を製造する技術が、廃棄物の利用による水素製造
法として注目されている。またベンゼンからフェノール
を合成する方法やアミノ酸の合成等の有機合成への応用
も今後発展するものと思われる。また有機ハロゲン化合
物やキレート化合物などの公害物質の分解も半導体触媒
の重要な応用分野である。半導体の触媒作用は半導体と
溶液の界面で起るので１表面積が大きい粉末を用いる方
が、電極を用いるより１反応効率が大きい、このため上
記の応用分野ではもっばら粉末が用いられている。一方
、粉末は溶液中に懸濁して用いるので、反応後、濾過や
遠心分離により、反応物から半導体粉末を除かなければ
ならないという欠点がある。このため反応を連続的に行
うことができず、このことが半導体触媒の実用化の大き
な妨げとなっている。As an example of the application of semiconductor photocatalysts, technology for producing hydrogen by photolyzing biomass is attracting attention as a hydrogen production method using waste. Applications to organic synthesis, such as methods for synthesizing phenol from benzene and amino acid synthesis, are also expected to develop in the future. Decomposition of pollutants such as organic halogen compounds and chelate compounds is also an important application field for semiconductor catalysts. Since the catalytic action of a semiconductor occurs at the interface between the semiconductor and the solution, using a powder with a large surface area has a higher reaction efficiency than using an electrode.For this reason, powders are often used in the above application fields. On the other hand, since the powder is used suspended in a solution, there is a drawback that the semiconductor powder must be removed from the reactant by filtration or centrifugation after the reaction. For this reason, the reaction cannot be carried out continuously, which is a major hindrance to the practical application of semiconductor catalysts.
本発明は、従来技術に見られる前記欠点を克服した。半
導体粉末の特徴を生かし、かつ流動式反応装置に用いる
ことの可能な半導体を含む光機能膜を提供することを目
的とする。The present invention overcomes the aforementioned drawbacks found in the prior art. The purpose of the present invention is to provide an optical functional film containing a semiconductor that takes advantage of the characteristics of semiconductor powder and can be used in a fluidized reactor.
本発明によれば、多孔性膜に半導体コロイドを保持させ
たことを特徴とする光機能性膜が提供される。According to the present invention, there is provided a photofunctional film characterized in that a porous film holds a semiconductor colloid.
本発明の光機能性膜は、バイオマス、アルコール等の存
在下で水を光分解して、水素を製造することができる。The photofunctional film of the present invention can produce hydrogen by photolyzing water in the presence of biomass, alcohol, and the like.
また環境汚染上の問題となっているトリクロルエチレン
、テトラクロルエチレン、ジクロルメタン等の有機ハロ
ゲン化合物の除去に用いることできる。更に有機合成に
おいて、ベンゼンの酸化によるフェノールのＨ造や不飽
和脂肪酸の水素化に光触媒として用いることができる。It can also be used to remove organic halogen compounds such as trichloroethylene, tetrachloroethylene, and dichloromethane, which are causing environmental pollution problems. Furthermore, in organic synthesis, it can be used as a photocatalyst for H formation of phenol by oxidation of benzene and hydrogenation of unsaturated fatty acids.
本発明の光機能性膜を流動式の反応槽と組み合せて用い
ることにより、上記のような反応を連続的に行なわせる
ことできる。By using the photofunctional film of the present invention in combination with a fluidized reaction tank, the above reactions can be carried out continuously.
本発明に用いる多孔性膜は、孔のサイズが０．０１〜１
０μ腸の範囲にあるものが適しているが、これに限定さ
れるものではない。このような多孔性膜としては、従来
公知のもの１例えば、市販のメンブランフィルタ−やガ
ラスフィルター等が用いられる。The porous membrane used in the present invention has a pore size of 0.01 to 1
Those in the 0μ intestine range are suitable, but are not limited thereto. As such a porous membrane, conventionally known ones such as commercially available membrane filters and glass filters can be used.
本発明に用いる半導体は、微粒子コロイドにし得るもの
であれば殆んど全てのものを用いることができ、その具
体的半導体の種類は、その使用目的に応じて適当に選択
される。例えば、水分解の目的には、二酸化チタン、チ
タン酸ストロンチウム、硫化カドミウム等が好ましく用
いられる。As the semiconductor used in the present invention, almost any semiconductor can be used as long as it can be made into a fine colloid, and the specific type of semiconductor is appropriately selected depending on the purpose of use. For example, for the purpose of water splitting, titanium dioxide, strontium titanate, cadmium sulfide, etc. are preferably used.
本発明の光機能性膜は、多孔性膜の孔サイズに近い粒子
径の分布を持つ半導体コロイド溶液を、多孔性膜で繰返
し濾過し、半導体の微粒子コロイドを多孔性膜に保持さ
せることによって製造される。この場合、半導体の微粒
子コロイド溶液は、一般には、半導体の合成法に基づい
て調製することができる。即ち、半導体合成法に従って
、半導体化合物のコロイド溶液を形成し、これを加熱熟
成し、粒子を成長させる。コロイド粒子の粒子径のコン
トロールは、この熟成温度と熟成時間を調節することに
より行うことができるつこの半導体コロイド溶液の調製
を、例えば、二酸化チタンの場合について示すと、二酸
化チタンの合成法に従って、先ず、蒸留水に四塩化チタ
ンを微量ずつ添加し、加水分解させることにより、二酸
化チタンのヒドロシル微粒子のコロイド溶液を形成し、
これを熟成すればよい。The optically functional membrane of the present invention is produced by repeatedly filtering a semiconductor colloid solution with a particle size distribution close to the pore size of the porous membrane through a porous membrane, and retaining the fine semiconductor colloid in the porous membrane. be done. In this case, the semiconductor fine particle colloidal solution can generally be prepared based on a semiconductor synthesis method. That is, a colloidal solution of a semiconductor compound is formed according to a semiconductor synthesis method, and this is heat-ripened to grow particles. The particle size of the colloidal particles can be controlled by adjusting the aging temperature and aging time.The preparation of a semiconductor colloidal solution, for example, in the case of titanium dioxide, is as follows: First, a small amount of titanium tetrachloride is added to distilled water and hydrolyzed to form a colloidal solution of titanium dioxide hydrosyl fine particles.
This should be matured.
本発明の光機能性膜は、前記のようにして得られる半導
体微粒子のみを保持させた膜のままでも使用可能である
が、必要に応じ、その半導体の触媒効果を向上させるた
めに、さらに、金属を担持させて用いることができる。The photofunctional film of the present invention can be used as a film retaining only the semiconductor fine particles obtained as described above, but if necessary, in order to improve the catalytic effect of the semiconductor, It can be used by supporting a metal.
この場合、担持させる金属としては、例えば、白金、パ
ラジウム、ロジウム、ルテニウム、イリジウム、銅等が
挙げられ、水の分解を目的とする場合には、特に、白金
やパラジウムの使用が好ましい。膜に対してこれら金属
を担持させるためには、金属イオンの水溶液に窒素やア
ルゴン等の不活性ガスを導入して溶存酸素を除去した後
に、この溶液に膜を浸して光を照射する。この操作にお
いて、金属イオンが膜面に沈潰しにくいときは、金属イ
オン溶液にアスコルビン酸を加えることにより、金属の
沈漬を効率よく行わせることができる。また、膜に対す
る金属の担持は、金属蒸着法等によって行うこともでき
る。In this case, examples of the supported metal include platinum, palladium, rhodium, ruthenium, iridium, copper, etc. When the purpose is to decompose water, it is particularly preferable to use platinum or palladium. In order to support these metals on the film, an inert gas such as nitrogen or argon is introduced into an aqueous solution of metal ions to remove dissolved oxygen, and then the film is immersed in this solution and irradiated with light. In this operation, if the metal ions are difficult to sink on the membrane surface, the metal can be efficiently immersed by adding ascorbic acid to the metal ion solution. Further, metal can also be supported on the film by a metal vapor deposition method or the like.
本発明の光機能性膜は、その表面の補強を行うために、
さらに、その表面を高分子被膜で被覆することができる
。この場合、被膜形成用高分子としては、ポリビニルア
ルコール、ゼラチン、ポリビニルピロリドン、ポリアク
リル酸、ポリ酢酸ビニル、ポリウレタン等の水溶性ない
しエマルジョン形成性のものが用いられ、光機能性膜の
用途との関連で適当のものが選択される。例えば、水溶
液系に用いる場合には、親木性高分子が好ましく使用さ
れる。これらの高分子は、１％程度の濃度の溶液として
適用され、その付着量（乾燥重量基準）は、１〜５ｇ／
ｒｄ、好ましくは２〜３ｇ／ｒｒｒ程度である。In order to reinforce the surface of the optically functional film of the present invention,
Furthermore, the surface can be coated with a polymeric coating. In this case, the film-forming polymer used is a water-soluble or emulsion-forming polymer such as polyvinyl alcohol, gelatin, polyvinylpyrrolidone, polyacrylic acid, polyvinyl acetate, polyurethane, etc. An appropriate one is selected based on the relationship. For example, when used in an aqueous solution system, wood-philic polymers are preferably used. These polymers are applied as a solution with a concentration of about 1%, and the amount of adhesion (based on dry weight) is 1 to 5 g/
rd, preferably about 2 to 3 g/rrr.
本発明の光機能性膜は、前記したような各種の光反応触
媒として使用され、反応終了後、反応系から分離するこ
とが容易であり、また流動式の反応槽と組合せて用いる
ことにより、連続的に反応を行わせることができる。The photofunctional membrane of the present invention can be used as a catalyst for various photoreactions as described above, and can be easily separated from the reaction system after the reaction is completed, and can be used in combination with a fluidized reaction tank. The reaction can be carried out continuously.
次に本発明を実施例によりさらに詳細に説明する。 Next, the present invention will be explained in more detail with reference to Examples.
実施例１
アイスバス中で冷却した蒸留水１００ｍΩを攪拌しなが
ら、四塩化チタンの５１１Ｑを微量ずつ、ゆっくり加え
た。生ずる微細な二酸化チタンのコロイド溶液の３０ｃ
ｃを８０℃で約１０分間熟成した。このコロイド溶液を
ザル１−リウス製メンブランフィルタ−５Ｍ１１６０（
ｉ１紙径４．５ｃｍ、孔径０．２μｍ）で濾過した。Example 1 While stirring 100 mΩ of distilled water cooled in an ice bath, titanium tetrachloride 511Q was slowly added in minute amounts. 30c of the resulting fine titanium dioxide colloidal solution
c was aged at 80°C for about 10 minutes. This colloidal solution was filtered using a membrane filter manufactured by Sallius 5M1160 (
It was filtered through i1 paper (diameter: 4.5 cm, pore size: 0.2 μm).
濾液を熟成して、再び濾過し、同様の操作を数回繰り返
してコロイドを膜中に保持させた。この膜を流水で２０
分間水洗した後に、０．５％塩化白金酸を含み、炭酸ナ
トリウムと塩酸でｐＨ４，０に調節した水溶液に浸した
。窒素ガスを２０分間送った後に。The filtrate was aged and filtered again, and the same operation was repeated several times to retain the colloid in the membrane. Rinse this membrane under running water for 20 minutes.
After washing with water for a minute, it was immersed in an aqueous solution containing 0.5% chloroplatinic acid and adjusted to pH 4.0 with sodium carbonate and hydrochloric acid. After passing nitrogen gas for 20 minutes.
窒素の送気を続けながら、５００ｗ超高圧水銀灯で、片
面３０分ずつ１両面光照射した。表面に白金が沈浸した
膜を塩酸溶液に１分間浸漬した後に、流水で十分に水洗
した。このようにして、本発明の光機能性膜を得た。While continuing to supply nitrogen air, each side was irradiated with light for 30 minutes on each side using a 500 W ultra-high pressure mercury lamp. The membrane with platinum precipitated on its surface was immersed in a hydrochloric acid solution for 1 minute, and then thoroughly washed with running water. In this way, the optical functional film of the present invention was obtained.
実施例２
実施例１で調製した半導体固定膜をパイレックスガラス
製サンプルビン（容積３０■ｊ２）に入れ、エタノール
と水の１＝１溶液１５ｍ Ｑを加え、シリコンゴムで栓
をした。これを１００ｗ超高圧水銀灯で３１０ｎｍのカ
ットフィルターを通して５時間照射した。Example 2 The semiconductor-fixed film prepared in Example 1 was placed in a Pyrex glass sample bottle (volume: 30 cm2), 15 mQ of a 1=1 solution of ethanol and water was added, and the bottle was stoppered with silicone rubber. This was irradiated for 5 hours with a 100 W ultra-high pressure mercury lamp through a 310 nm cut filter.
サンプルビンの中の気体の一部をガスクロマトグラフで
分析した。この時１１＋Ｆｌの水素が得られた。A portion of the gas in the sample bottle was analyzed using a gas chromatograph. At this time, 11+Fl of hydrogen was obtained.
実施例３
、実施例１と同様にして、二酸化チタンコロイドを保持
し、白金を担持したザルトリウス製メンブランフィルタ
−５Ｍ１１３０７（濾紙径４．５Ｃ１１、孔径０．０１
μｍ）を１０−２モルＥＤＴＡ （エチレンジアミン
四酢酸二ナトリウム）の水溶液１５μΩに浸して、実施
例２と同様の方法で１時間光照射した９発生したガスを
実施例２と同様の方法で分析した。これにより０．８ｒ
ａΩの水素が得られた。Example 3 In the same manner as in Example 1, a Sartorius membrane filter 5M11307 (filter paper diameter 4.5C11, pore diameter 0.01
μm) was immersed in a 15 μΩ aqueous solution of 10 −2 molar EDTA (disodium ethylenediaminetetraacetate) and irradiated with light for 1 hour in the same manner as in Example 2. The gas generated was analyzed in the same manner as in Example 2. . This results in 0.8r
A Ω of hydrogen was obtained.
実施例４
実施例１と同様にして調製した半導体固定膜の片面に、
１％ポリビニルアルコール（ＰＶＡ）水溶液の「
０．４ｒａＱを流し、−昼夜乾燥した。これを実施例２
と同様にして、 ＰＶＡ被覆面を１時間光照射した。こ
れにより０．Ｊ１５＊ρの水素が得られた。Example 4 On one side of a semiconductor fixed film prepared in the same manner as in Example 1,
A 1% polyvinyl alcohol (PVA) aqueous solution of 0.4raQ was poured and dried day and night.
In the same manner as above, the PVA-coated surface was irradiated with light for 1 hour. This results in 0. Hydrogen of J15*ρ was obtained.
Claims (1)
徴とする光機能性膜。(1) A photofunctional film characterized in that a porous film holds a semiconductor colloid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60159524A JPS6219245A (en) | 1985-07-19 | 1985-07-19 | Optically functional film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60159524A JPS6219245A (en) | 1985-07-19 | 1985-07-19 | Optically functional film |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6219245A true JPS6219245A (en) | 1987-01-28 |
| JPH0365231B2 JPH0365231B2 (en) | 1991-10-11 |
Family
ID=15695648
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60159524A Granted JPS6219245A (en) | 1985-07-19 | 1985-07-19 | Optically functional film |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6219245A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63248443A (en) * | 1987-04-01 | 1988-10-14 | Agency Of Ind Science & Technol | Photooxidation catalyst and its production |
| JPH01135842A (en) * | 1987-11-21 | 1989-05-29 | Agency Of Ind Science & Technol | Photocatalyst-immobilized membrane |
| JP2006326530A (en) * | 2005-05-27 | 2006-12-07 | Hiroshima Univ | Nanoporous titanium oxide membrane and method for treating volatile organic compound using the same |
| JP2014500788A (en) * | 2010-11-04 | 2014-01-16 | 中国科学院理化技術研究所 | Semiconductor photocatalyst for photocatalysis and reforming of biomass derivatives to produce hydrogen and its production and application |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5820701A (en) * | 1981-07-23 | 1983-02-07 | Mitsubishi Electric Corp | Semiconductor element for hydrogen generation |
-
1985
- 1985-07-19 JP JP60159524A patent/JPS6219245A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5820701A (en) * | 1981-07-23 | 1983-02-07 | Mitsubishi Electric Corp | Semiconductor element for hydrogen generation |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63248443A (en) * | 1987-04-01 | 1988-10-14 | Agency Of Ind Science & Technol | Photooxidation catalyst and its production |
| JPH01135842A (en) * | 1987-11-21 | 1989-05-29 | Agency Of Ind Science & Technol | Photocatalyst-immobilized membrane |
| JP2006326530A (en) * | 2005-05-27 | 2006-12-07 | Hiroshima Univ | Nanoporous titanium oxide membrane and method for treating volatile organic compound using the same |
| JP2014500788A (en) * | 2010-11-04 | 2014-01-16 | 中国科学院理化技術研究所 | Semiconductor photocatalyst for photocatalysis and reforming of biomass derivatives to produce hydrogen and its production and application |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0365231B2 (en) | 1991-10-11 |
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