JPS56125203A - Photochemical decomposition of water by photosensitive catalyst - Google Patents
Photochemical decomposition of water by photosensitive catalystInfo
- Publication number
- JPS56125203A JPS56125203A JP2563980A JP2563980A JPS56125203A JP S56125203 A JPS56125203 A JP S56125203A JP 2563980 A JP2563980 A JP 2563980A JP 2563980 A JP2563980 A JP 2563980A JP S56125203 A JPS56125203 A JP S56125203A
- Authority
- JP
- Japan
- Prior art keywords
- iodine
- water
- light
- hydrogen
- iodide
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title abstract 6
- 239000003054 catalyst Substances 0.000 title 1
- 238000000354 decomposition reaction Methods 0.000 title 1
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 abstract 5
- 229910052740 iodine Inorganic materials 0.000 abstract 5
- 239000011630 iodine Substances 0.000 abstract 5
- QGZKDVFQNNGYKY-UHFFFAOYSA-N ammonia Natural products N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 abstract 3
- 239000001257 hydrogen Substances 0.000 abstract 3
- 229910052739 hydrogen Inorganic materials 0.000 abstract 3
- XMBWDFGMSWQBCA-UHFFFAOYSA-N hydrogen iodide Chemical compound I XMBWDFGMSWQBCA-UHFFFAOYSA-N 0.000 abstract 3
- 229910000043 hydrogen iodide Inorganic materials 0.000 abstract 3
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 abstract 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 abstract 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract 2
- 150000002497 iodine compounds Chemical class 0.000 abstract 2
- 239000001301 oxygen Substances 0.000 abstract 2
- 229910052760 oxygen Inorganic materials 0.000 abstract 2
- XZXYQEHISUMZAT-UHFFFAOYSA-N 2-[(2-hydroxy-5-methylphenyl)methyl]-4-methylphenol Chemical compound CC1=CC=C(O)C(CC=2C(=CC=C(C)C=2)O)=C1 XZXYQEHISUMZAT-UHFFFAOYSA-N 0.000 abstract 1
- 229940107816 ammonium iodide Drugs 0.000 abstract 1
- 238000006555 catalytic reaction Methods 0.000 abstract 1
- 238000006243 chemical reaction Methods 0.000 abstract 1
- 150000002431 hydrogen Chemical class 0.000 abstract 1
- 230000031700 light absorption Effects 0.000 abstract 1
- 239000012528 membrane Substances 0.000 abstract 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
Landscapes
- Treatment Of Water By Oxidation Or Reduction (AREA)
- Physical Water Treatments (AREA)
Abstract
PURPOSE: To decompose water efficiently without using thermal energy, by adding aqueous ammonia and iodine to water under irradiation of ultraviolet light to decompose the water photochemically.
CONSTITUTION: An assistant, e.g. aqueous ammonia, is added to water under irradiation of natural light, visible light or ultraviolet light at a wavelength near 400W100nm to adjust pH to 7W15, and iodine is then reacted with the ammonia group to form an iodine compound, e.g. ammonium iodide. The water molecule is dissociated with the light energy due to the light absorption with the iodine compound and the photochemical catalysis thereof to generate hydrogen iodine and oxygen. The oxygen and the hydrogen iodide are then separated to irradiate the hydrogen iodide with light, and the hydrogen iodide is separated into iodine and hydrogen. The hydrogen is passed through a porous membrane, etc. and recovered. The iodine is then recovered and reused for the reaction.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2563980A JPS56125203A (en) | 1980-03-01 | 1980-03-01 | Photochemical decomposition of water by photosensitive catalyst |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2563980A JPS56125203A (en) | 1980-03-01 | 1980-03-01 | Photochemical decomposition of water by photosensitive catalyst |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS56125203A true JPS56125203A (en) | 1981-10-01 |
Family
ID=12171409
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2563980A Pending JPS56125203A (en) | 1980-03-01 | 1980-03-01 | Photochemical decomposition of water by photosensitive catalyst |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS56125203A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58168711U (en) * | 1982-05-07 | 1983-11-10 | 富士写真光機株式会社 | Endoscope |
| US4584988A (en) * | 1983-09-02 | 1986-04-29 | Olympus Optical Co., Ltd. | Illumination apparatus for endoscope |
| US5578193A (en) * | 1993-01-08 | 1996-11-26 | Nec Corporation | Method and apparatus for wet treatment of solid surfaces |
| CN110467153A (en) * | 2019-08-20 | 2019-11-19 | 中核能源科技有限公司 | A kind of high temperature gas cooled reactor coupling iodine selenium thermochemical cycles nitrogen reduction hydrogen production process |
-
1980
- 1980-03-01 JP JP2563980A patent/JPS56125203A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58168711U (en) * | 1982-05-07 | 1983-11-10 | 富士写真光機株式会社 | Endoscope |
| US4584988A (en) * | 1983-09-02 | 1986-04-29 | Olympus Optical Co., Ltd. | Illumination apparatus for endoscope |
| US5578193A (en) * | 1993-01-08 | 1996-11-26 | Nec Corporation | Method and apparatus for wet treatment of solid surfaces |
| CN110467153A (en) * | 2019-08-20 | 2019-11-19 | 中核能源科技有限公司 | A kind of high temperature gas cooled reactor coupling iodine selenium thermochemical cycles nitrogen reduction hydrogen production process |
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