JP5763586B2 - 二酸化炭素還元における効率向上方法 - Google Patents
二酸化炭素還元における効率向上方法 Download PDFInfo
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- JP5763586B2 JP5763586B2 JP2012129372A JP2012129372A JP5763586B2 JP 5763586 B2 JP5763586 B2 JP 5763586B2 JP 2012129372 A JP2012129372 A JP 2012129372A JP 2012129372 A JP2012129372 A JP 2012129372A JP 5763586 B2 JP5763586 B2 JP 5763586B2
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- carbon dioxide
- photocatalyst
- light
- dioxide reduction
- improving efficiency
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- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 title claims description 132
- 229910002092 carbon dioxide Inorganic materials 0.000 title claims description 66
- 239000001569 carbon dioxide Substances 0.000 title claims description 66
- 238000000034 method Methods 0.000 title claims description 21
- 239000011941 photocatalyst Substances 0.000 claims description 63
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical group O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 32
- 239000004408 titanium dioxide Substances 0.000 claims description 15
- 239000000758 substrate Substances 0.000 claims description 14
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 12
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 11
- 239000010931 gold Substances 0.000 claims description 11
- 229910052737 gold Inorganic materials 0.000 claims description 11
- 239000010453 quartz Substances 0.000 claims description 11
- 230000001699 photocatalysis Effects 0.000 claims description 9
- 239000010419 fine particle Substances 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 239000012298 atmosphere Substances 0.000 claims description 5
- 238000006243 chemical reaction Methods 0.000 claims description 5
- 230000001678 irradiating effect Effects 0.000 claims description 5
- 238000006722 reduction reaction Methods 0.000 description 18
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 14
- 239000000843 powder Substances 0.000 description 12
- 239000011521 glass Substances 0.000 description 9
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 6
- 229910016036 BaF 2 Inorganic materials 0.000 description 5
- 239000002253 acid Substances 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000002245 particle Substances 0.000 description 5
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 4
- 238000005033 Fourier transform infrared spectroscopy Methods 0.000 description 4
- 229910002091 carbon monoxide Inorganic materials 0.000 description 4
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 3
- 239000013074 reference sample Substances 0.000 description 3
- 239000000523 sample Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000002149 energy-dispersive X-ray emission spectroscopy Methods 0.000 description 2
- 239000012299 nitrogen atmosphere Substances 0.000 description 2
- 238000013032 photocatalytic reaction Methods 0.000 description 2
- 229910052702 rhenium Inorganic materials 0.000 description 2
- WUAPFZMCVAUBPE-UHFFFAOYSA-N rhenium atom Chemical compound [Re] WUAPFZMCVAUBPE-UHFFFAOYSA-N 0.000 description 2
- ROFVEXUMMXZLPA-UHFFFAOYSA-N Bipyridyl Chemical compound N1=CC=CC=C1C1=CC=CC=N1 ROFVEXUMMXZLPA-UHFFFAOYSA-N 0.000 description 1
- 241000282414 Homo sapiens Species 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 238000002441 X-ray diffraction Methods 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000002803 fossil fuel Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000011859 microparticle Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 150000004685 tetrahydrates Chemical class 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
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Classifications
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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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- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
- Carbon And Carbon Compounds (AREA)
- Catalysts (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
はじめに、本発明の実施の形態1について図1を用いて説明する。図1は、本発明の実施の形態1における二酸化炭素還元における効率向上方法を説明するためのフローチャートである。
次に、本発明の実施の形態2について図2を用いて説明する。図2は、本発明の実施の形態2における二酸化炭素還元における効率向上方法を説明するためのフローチャートである。
次に、実施例1について説明する。はじめに、光触媒の作製について説明する。まず、テトラクロロ金(III)酸四水和物(塩化金酸)を純水に溶解し、2mmol/lの塩化金酸溶液30mlに調整する。更に、この塩化金酸溶液に、水酸化ナトリウムを加えpH8に調整する。この溶液に、あらかじめ窒素雰囲気下で300℃、3時間熱処理したアナターゼ型二酸化チタンの粉末を1g加え、室温で4時間攪拌する。この後、溶液中に得られた固体(粉末)をろ過して分取し、分取した粉末を水洗し、窒素雰囲気中で乾燥する。この後、乾燥させた粉末を400℃で3時間焼成し、この後、更に500℃で3時間の熱処理を行うことで光触媒機能を有する光触媒が得られる。
Claims (6)
- 光触媒機能を有する光触媒に二酸化炭素を接触させる接触工程と、
前記光触媒のバンドギャップ以上の波長の第1光を前記光触媒に照射する第1光照射工程と、
波長4.3μmの第2光を前記二酸化炭素に照射して二酸化炭素分子に非対称の伸縮運動による振動を起こさせる第2光照射工程と
を少なくとも備え、
前記第1光および前記第2光の照射により前記光触媒に接触する二酸化炭素を還元する効率を向上させることを特徴とする二酸化炭素還元における効率向上方法。 - 請求項1記載の二酸化炭素還元における効率向上方法において、
前記光触媒を基体に固定する固定工程を備え、
前記接触工程では、前記基体に固定された前記光触媒に二酸化炭素を接触させ、
前記第1光照射工程では、前記基体に固定された前記光触媒に光を照射することを特徴とする二酸化炭素還元における効率向上方法。 - 請求項2記載の二酸化炭素還元における効率向上方法において、
前記基体は、石英ろ紙であることを特徴とする二酸化炭素還元における効率向上方法。 - 請求項1〜3のいずれか1項の二酸化炭素還元における効率向上方法において、
前記接触工程,前記第1光照射工程,および前記第2光照射工程は、水分および二酸化炭素のみの反応雰囲気で行うことを特徴とする二酸化炭素還元における効率向上方法。 - 請求項1〜4のいずれか1項に記載の二酸化炭素還元における効率向上方法において、
前記光触媒は、二酸化チタンであることを特徴とする二酸化炭素還元における効率向上方法。 - 請求項5記載の二酸化炭素還元における効率向上方法において、
前記光触媒の表面に担持された金の微粒子を備えることを特徴とする二酸化炭素還元における効率向上方法。
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KR20170141459A (ko) * | 2016-06-15 | 2017-12-26 | 한국과학기술원 | 코어-쉘 구조의 아연계 촉매 미립자를 이용한 이산화탄소의 환원 방법 및 이를 위한 장치 |
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JPS5663812A (en) * | 1979-10-29 | 1981-05-30 | Agency Of Ind Science & Technol | Production of carbon monoxide |
JP2003299965A (ja) * | 2002-04-09 | 2003-10-21 | Andes Denki Kk | 光触媒材料とその製造方法 |
JP2004344720A (ja) * | 2003-05-20 | 2004-12-09 | Hasshin Tech Kk | Co2低減方法および人工光合成誘起物ならびにco2低減装置 |
JP5205693B2 (ja) * | 2004-11-17 | 2013-06-05 | 東京電力株式会社 | マイクロ波を用いたco2の固定化方法 |
JP2007314384A (ja) * | 2006-05-26 | 2007-12-06 | Honda Motor Co Ltd | 水素ガス製造方法およびその製造装置 |
JP2008183522A (ja) * | 2007-01-30 | 2008-08-14 | Central Japan Railway Co | 光触媒式空気浄化装置 |
US20100213046A1 (en) * | 2009-01-06 | 2010-08-26 | The Penn State Research Foundation | Titania nanotube arrays, methods of manufacture, and photocatalytic conversion of carbon dioxide using same |
JP2009275033A (ja) * | 2009-03-04 | 2009-11-26 | Ichiro Moriya | 二酸化炭素の還元方法および還元力供与システム |
US8574407B2 (en) * | 2010-01-26 | 2013-11-05 | Southwest Research Institute | Plasmonic structures for mediating chemical transformation |
KR20110094966A (ko) * | 2010-02-18 | 2011-08-24 | 삼성전자주식회사 | 수소 발생 방법 및 이를 이용하는 연료전지 |
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KR101885321B1 (ko) * | 2016-06-15 | 2018-08-29 | 한국과학기술원 | 코어-쉘 구조의 아연계 촉매 미립자를 이용한 이산화탄소의 환원 방법 및 이를 위한 장치 |
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