JP5959753B2 - チタン欠乏型岩塩構造チタン酸窒化物 - Google Patents
チタン欠乏型岩塩構造チタン酸窒化物 Download PDFInfo
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- JP5959753B2 JP5959753B2 JP2015540584A JP2015540584A JP5959753B2 JP 5959753 B2 JP5959753 B2 JP 5959753B2 JP 2015540584 A JP2015540584 A JP 2015540584A JP 2015540584 A JP2015540584 A JP 2015540584A JP 5959753 B2 JP5959753 B2 JP 5959753B2
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- 239000010936 titanium Substances 0.000 title claims description 219
- 229910052719 titanium Inorganic materials 0.000 title claims description 189
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 title claims description 188
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical group [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 title claims description 111
- 230000002950 deficient Effects 0.000 title claims description 75
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical group N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 84
- 229910052757 nitrogen Inorganic materials 0.000 claims description 42
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 38
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 29
- 239000001301 oxygen Substances 0.000 claims description 29
- 229910052760 oxygen Inorganic materials 0.000 claims description 29
- 230000003647 oxidation Effects 0.000 claims description 9
- 238000007254 oxidation reaction Methods 0.000 claims description 9
- 238000003776 cleavage reaction Methods 0.000 claims description 4
- 239000002105 nanoparticle Substances 0.000 claims description 4
- 230000007017 scission Effects 0.000 claims description 4
- KELHQGOVULCJSG-UHFFFAOYSA-N n,n-dimethyl-1-(5-methylfuran-2-yl)ethane-1,2-diamine Chemical compound CN(C)C(CN)C1=CC=C(C)O1 KELHQGOVULCJSG-UHFFFAOYSA-N 0.000 description 34
- 239000007789 gas Substances 0.000 description 24
- 230000001699 photocatalysis Effects 0.000 description 15
- 238000000034 method Methods 0.000 description 14
- 238000006243 chemical reaction Methods 0.000 description 9
- 238000010438 heat treatment Methods 0.000 description 9
- 238000006303 photolysis reaction Methods 0.000 description 9
- 238000004833 X-ray photoelectron spectroscopy Methods 0.000 description 8
- 230000007812 deficiency Effects 0.000 description 8
- 230000008569 process Effects 0.000 description 8
- 229910010413 TiO 2 Inorganic materials 0.000 description 7
- 238000004458 analytical method Methods 0.000 description 7
- 239000004408 titanium dioxide Substances 0.000 description 7
- 230000015572 biosynthetic process Effects 0.000 description 6
- 239000011941 photocatalyst Substances 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- CXKWCBBOMKCUKX-UHFFFAOYSA-M methylene blue Chemical compound [Cl-].C1=CC(N(C)C)=CC2=[S+]C3=CC(N(C)C)=CC=C3N=C21 CXKWCBBOMKCUKX-UHFFFAOYSA-M 0.000 description 5
- 229960000907 methylthioninium chloride Drugs 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 4
- 238000001725 laser pyrolysis Methods 0.000 description 4
- 229910044991 metal oxide Inorganic materials 0.000 description 4
- 150000004706 metal oxides Chemical class 0.000 description 4
- 238000001683 neutron diffraction Methods 0.000 description 4
- 238000002441 X-ray diffraction Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 235000002639 sodium chloride Nutrition 0.000 description 3
- 238000006467 substitution reaction Methods 0.000 description 3
- 238000003786 synthesis reaction Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical compound [Ti]#N NRTOMJZYCJJWKI-UHFFFAOYSA-N 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 239000012153 distilled water Substances 0.000 description 2
- 239000010442 halite Substances 0.000 description 2
- 238000000608 laser ablation Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000015843 photosynthesis, light reaction Effects 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 239000002243 precursor Substances 0.000 description 2
- VXUYXOFXAQZZMF-UHFFFAOYSA-N titanium(IV) isopropoxide Chemical compound CC(C)O[Ti](OC(C)C)(OC(C)C)OC(C)C VXUYXOFXAQZZMF-UHFFFAOYSA-N 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000011067 equilibration Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000001782 photodegradation Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
- 150000003624 transition metals Chemical class 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B21/00—Nitrogen; Compounds thereof
- C01B21/082—Compounds containing nitrogen and non-metals and optionally metals
- C01B21/0821—Oxynitrides of metals, boron or silicon
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J27/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
- B01J27/24—Nitrogen compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/30—Catalysts, in general, characterised by their form or physical properties characterised by their physical properties
- B01J35/39—Photocatalytic properties
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J6/00—Heat treatments such as Calcining; Fusing ; Pyrolysis
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G23/00—Compounds of titanium
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G23/00—Compounds of titanium
- C01G23/04—Oxides; Hydroxides
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2002/00—Crystal-structural characteristics
- C01P2002/30—Three-dimensional structures
- C01P2002/32—Three-dimensional structures spinel-type (AB2O4)
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2002/00—Crystal-structural characteristics
- C01P2002/70—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data
- C01P2002/72—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data by d-values or two theta-values, e.g. as X-ray diagram
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Catalysts (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
Description
また、岩塩構造チタン一酸化物(TiO)は、蒸溜水内部でレーザーアブレーション(laser ablation)を行うか、チタン(Ti)金属とチタン二酸化物(TiO2)を用いた機械化学的合成法(mechanochemical synthesis)、またはチタン前駆体(titanium isopropoxide)のレーザー熱分解(laser pyrolysis)法などのような非平衡工程(non−equilibrium process)で製作し得る。しかし、このように瞬間的なエネルギーを加えて非平衡工程によって製作された岩塩構造チタン一酸化物(TiO)は安定性が低いという短所がある。
光触媒としてよく知られているチタン二酸化物(TiO2)は、バンドギャップエネルギーが3.2eV程度であるため可視光領域の光触媒特性が良くない。可視光領域の光触媒特性を良くするために、窒素(N)をチタン二酸化物(TiO2)にドーピングすることで、O2pとN2pの混成電子軌道を形成してバンドギャップを低減しようとする動きがあった。しかし、チタン二酸化物(TiO2)に窒素(N)をドーピングすると、構造的安全性に問題があるものと知られている。
一例として、サイモン(Simon)らは、レーザー熱分解(laser pyrolysis)方法で窒素が導入された岩塩構造チタン一酸化物(TiO)を製作して光触媒特性を測定したが、光触媒特性は4分以内の短い時間に測定された光触媒特性を報告していた(P.Simon、B.Pignon、B.Miao、S.Coste−Leconte、Y.Leconte、S.Marguet、P.Jegou、B.Bouchet−Fabre、C.Reynaud、N.Herlin−Boime、Chem.Mater.2010、22、3704.)。
窒素がチタン二酸化物(TiO2)内に浸透してチタンと結合しながら酸素位置の酸素と置換されるのに必要な十分な時間分前記加熱が行われることが好ましく、例えば1〜72時間前記加熱が行われることが好ましい。加熱時間が短すぎる場合には窒素がチタン二酸化物(TiO2)内に充分に浸透することができずに酸素位置の酸素との置換が不十分となる恐れがあり、加熱時間が長すぎる場合には所要時間が長く、非経済的であり、且つ生産性が減少する。
チタン二酸化物(TiO2)として、ドイツのデグサ(Degussa)社のP25製品を準備した。
サイモン(Simon)らが非平衡反応を介して製作された岩塩構造チタン酸窒化物を用いて微量(1μmol/L)のメチレンブルーを4分以内の時間で光分解させた結果を報告しているが(P.Simon、B.Pignon、B。Miao、S.Coste−Leconte、Y.Leconte、S。Marguet、P.Jegou、B.Bouchet−Fabre、C.Reynaud、N.Herlin−Boime、Chem。Mater.2010、22、3704.)、平衡反応を介して実施例1により製造したチタン欠乏型岩塩構造チタン酸窒化物の場合には、これより100倍高い濃度(100μmol/L)のメチレンブルーを3時間持続的に光分解し、平衡反応を介して実施例1で製造したチタン欠乏型岩塩構造チタン酸窒化物は優れた光触媒特性及び高い構造的安定性を示すことを確認した。
Claims (4)
- チタン欠乏型岩塩構造チタン酸窒化物(Ti1−xO1−yNy、x及びyは実数)であって、
チタンは、組成比を示すxが0<x<1の程度だけ欠乏して、当該欠乏した分だけ空孔(vacancy)が岩塩構造のチタン位置に形成されており、
窒素は、組成比を示すyが0<y<1の程度だけ導入されて、チタンと結合しているとともに、岩塩構造の酸素位置で酸素を置換しており、
岩塩構造のチタン位置がTi 2+ 、Ti 3+ 、及びTi 4+ で満たされて酸化価が+2を超え+3未満の範囲を有し、岩塩構造の酸素位置の酸化価が−3を超え−2未満の範囲を有する
ことを特徴とするチタン欠乏型岩塩構造チタン酸窒化物。 - 前記チタン欠乏型岩塩構造チタン酸窒化物が{111}劈開面を有することを特徴とする請求項1に記載のチタン欠乏型岩塩構造チタン酸窒化物。
- 前記チタン欠乏型岩塩構造チタン酸窒化物は、内部が空いている中空ナノ粒子(hollow nanoparticle)からなることを特徴とする請求項1に記載のチタン欠乏型岩塩構造チタン酸窒化物。
- 前記チタン欠乏型岩塩構造チタン酸窒化物がチタン二酸化物(TiO2)よりも低いバンドギャップエネルギーを有することを特徴とする請求項1に記載のチタン欠乏型岩塩構造チタン酸窒化物。
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KR10-2012-0124593 | 2012-11-06 | ||
KR1020120124593A KR101409164B1 (ko) | 2012-11-06 | 2012-11-06 | 티타늄결핍형 암염구조 티타늄 산질화물 |
PCT/KR2012/009829 WO2014073727A1 (ko) | 2012-11-06 | 2012-11-20 | 티타늄결핍형 암염구조 티타늄 산질화물 및 그 제조방법 |
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JP2015533365A JP2015533365A (ja) | 2015-11-24 |
JP5959753B2 true JP5959753B2 (ja) | 2016-08-02 |
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US (1) | US9487403B2 (ja) |
EP (1) | EP2918547B1 (ja) |
JP (1) | JP5959753B2 (ja) |
KR (1) | KR101409164B1 (ja) |
CN (1) | CN104884389B (ja) |
WO (1) | WO2014073727A1 (ja) |
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JP6565589B2 (ja) * | 2015-10-22 | 2019-08-28 | 富士通株式会社 | 酸窒化物 |
CN110072615B (zh) * | 2016-12-22 | 2020-06-30 | 昭和电工株式会社 | 氧还原催化剂 |
CN112010638A (zh) * | 2020-05-31 | 2020-12-01 | 深圳陶陶科技有限公司 | 一种陶瓷材料及其制备方法 |
EP4214326A2 (en) * | 2020-09-21 | 2023-07-26 | Lygos, Inc. | Continuous ion exchange and esterification of fermented malonic acid |
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US5188908A (en) * | 1990-02-23 | 1993-02-23 | Mitsubishi Materials Corporation | Al2 O3 Based ceramics |
JP3005319B2 (ja) * | 1990-10-19 | 2000-01-31 | 石原産業株式会社 | 針状あるいは板状低次酸化チタンおよびその製造方法 |
JP3288265B2 (ja) | 1997-06-20 | 2002-06-04 | 独立行政法人産業技術総合研究所 | 酸素吸収剤及びその使用方法 |
US6827922B2 (en) * | 2000-03-31 | 2004-12-07 | Sumitomo Chemical Company, Limited | Process for producing titanium oxide |
JP4668607B2 (ja) | 2004-12-28 | 2011-04-13 | 石原産業株式会社 | 黒色系酸窒化チタン |
KR101240091B1 (ko) * | 2004-12-28 | 2013-03-06 | 이시하라 산교 가부시끼가이샤 | 흑색 산질화 티타늄 |
KR100670944B1 (ko) * | 2005-04-28 | 2007-01-17 | 학교법인 포항공과대학교 | 티탄산염 및 티타늄 옥시나이트라이드의 제조방법 |
WO2007102490A1 (ja) * | 2006-03-07 | 2007-09-13 | Ishihara Sangyo Kaisha, Ltd. | 酸化チタン及び導電性酸化チタン並びにそれらの製造方法 |
US20070248757A1 (en) | 2006-04-20 | 2007-10-25 | Kostantinos Kourtakis | Processes for producing materials containing reduced abrasion titanium dioxide pigment |
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CN104884389B (zh) | 2016-06-08 |
WO2014073727A1 (ko) | 2014-05-15 |
KR20140058055A (ko) | 2014-05-14 |
US9487403B2 (en) | 2016-11-08 |
US20150298973A1 (en) | 2015-10-22 |
EP2918547A4 (en) | 2016-08-10 |
EP2918547A1 (en) | 2015-09-16 |
JP2015533365A (ja) | 2015-11-24 |
KR101409164B1 (ko) | 2014-06-19 |
EP2918547B1 (en) | 2019-05-15 |
CN104884389A (zh) | 2015-09-02 |
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