KR100990392B1 - 자외선 및 가시광선 감응 이산화티탄 광촉매의 제조방법 - Google Patents
자외선 및 가시광선 감응 이산화티탄 광촉매의 제조방법 Download PDFInfo
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- KR100990392B1 KR100990392B1 KR1020090005929A KR20090005929A KR100990392B1 KR 100990392 B1 KR100990392 B1 KR 100990392B1 KR 1020090005929 A KR1020090005929 A KR 1020090005929A KR 20090005929 A KR20090005929 A KR 20090005929A KR 100990392 B1 KR100990392 B1 KR 100990392B1
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- photocatalyst
- tio
- visible light
- methane gas
- heat treatment
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 17
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 title abstract description 23
- 230000001699 photocatalysis Effects 0.000 title abstract description 12
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 80
- 229910010413 TiO 2 Inorganic materials 0.000 claims abstract description 53
- 239000011941 photocatalyst Substances 0.000 claims abstract description 50
- 238000010438 heat treatment Methods 0.000 claims abstract description 45
- 239000007789 gas Substances 0.000 claims abstract description 36
- 239000010936 titanium Substances 0.000 claims abstract description 23
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000001301 oxygen Substances 0.000 claims abstract description 18
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 18
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims abstract description 17
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 17
- 238000000034 method Methods 0.000 claims description 23
- 239000000843 powder Substances 0.000 claims description 4
- 239000010409 thin film Substances 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 2
- 238000010926 purge Methods 0.000 claims description 2
- 229910052799 carbon Inorganic materials 0.000 abstract description 13
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 12
- 239000004408 titanium dioxide Substances 0.000 abstract description 8
- 230000004044 response Effects 0.000 abstract description 3
- 206010034960 Photophobia Diseases 0.000 abstract description 2
- 239000007772 electrode material Substances 0.000 abstract description 2
- 208000013469 light sensitivity Diseases 0.000 abstract description 2
- 239000013078 crystal Substances 0.000 description 12
- 238000013032 photocatalytic reaction Methods 0.000 description 12
- 229910052751 metal Inorganic materials 0.000 description 8
- 239000002184 metal Substances 0.000 description 8
- 239000000758 substrate Substances 0.000 description 6
- 239000003345 natural gas Substances 0.000 description 4
- 238000000354 decomposition reaction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 239000004065 semiconductor Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- RBTBFTRPCNLSDE-UHFFFAOYSA-N 3,7-bis(dimethylamino)phenothiazin-5-ium Chemical group C1=CC(N(C)C)=CC2=[S+]C3=CC(N(C)C)=CC=C3N=C21 RBTBFTRPCNLSDE-UHFFFAOYSA-N 0.000 description 2
- 238000002835 absorbance Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 238000000137 annealing Methods 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000010408 film Substances 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229960000907 methylthioninium chloride Drugs 0.000 description 2
- 229910052755 nonmetal Inorganic materials 0.000 description 2
- 239000011368 organic material Substances 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 238000000197 pyrolysis Methods 0.000 description 2
- 238000006722 reduction reaction Methods 0.000 description 2
- 239000000126 substance 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
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 238000002441 X-ray diffraction Methods 0.000 description 1
- DAAJPHTURITNKZ-UHFFFAOYSA-N [O-2].[O-2].[Ti+4].C(=O)=O Chemical compound [O-2].[O-2].[Ti+4].C(=O)=O DAAJPHTURITNKZ-UHFFFAOYSA-N 0.000 description 1
- CUJRVFIICFDLGR-UHFFFAOYSA-N acetylacetonate Chemical compound CC(=O)[CH-]C(C)=O CUJRVFIICFDLGR-UHFFFAOYSA-N 0.000 description 1
- YRKCREAYFQTBPV-UHFFFAOYSA-N acetylacetone Chemical compound CC(=O)CC(C)=O YRKCREAYFQTBPV-UHFFFAOYSA-N 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910021386 carbon form Inorganic materials 0.000 description 1
- -1 carbon ions Chemical class 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 230000004941 influx Effects 0.000 description 1
- 238000005468 ion implantation Methods 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 125000001570 methylene group Chemical group [H]C([H])([*:1])[*:2] 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
- 150000002843 nonmetals Chemical class 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000001878 scanning electron micrograph Methods 0.000 description 1
- 238000004626 scanning electron microscopy Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
- 150000003624 transition metals Chemical class 0.000 description 1
- 238000000870 ultraviolet spectroscopy Methods 0.000 description 1
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- 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
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/08—Heat treatment
-
- 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
- B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
- B01J21/06—Silicon, titanium, zirconium or hafnium; Oxides or hydroxides thereof
- B01J21/063—Titanium; Oxides or hydroxides thereof
-
- 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
-
- 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
- C01G23/047—Titanium dioxide
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Thermal Sciences (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Inorganic Chemistry (AREA)
- Catalysts (AREA)
Abstract
Description
Claims (8)
- 티타늄(Ti)을 메탄가스 및 산소 분위기하에서 700~1000℃에서 0.5~3시간 열처리를 하는 것을 특징으로 하는 자외선 및 가시광선 감응 TiO2 광촉매의 제조방법.
- 제 1 항에 있어서,상기 티타늄은 티타늄 박막 또는 분말인 것을 특징으로 하는 자외선 및 가시광선 감응 TiO2 광촉매의 제조방법.
- 제 1 항에 있어서,상기 메탄가스 및 산소 분위기는 대기 중에 메탄가스를 첨가하여 조성된 것을 특징으로 하는 자외선 및 가시광선 감응 TiO2 광촉매의 제조방법.
- 제 1 항에 있어서,상기 메탄가스 및 산소 분위기는 열처리로 내의 공기를 진공 또는 퍼징으로 제거한 후 메탄가스와 산소를 첨가하여 조성된 것을 특징으로 하는 자외선 및 가시 광선 감응 TiO2 광촉매의 제조방법.
- 제 4 항에 있어서,상기 메탄가스에 대한 산소의 부피비는 0.1~10%인 것을 특징으로 하는 자외선 및 가시광선 감응 TiO2 광촉매의 제조방법.
- 삭제
- 제 1 항 내지 제 4 항 중 어느 한 항에 있어서,상기 메탄가스의 분압은 0.5~10 torr인 것을 특징으로 하는 자외선 및 가시광선 감응 TiO2 광촉매의 제조방법.
- 제 1 항 내지 제 4 항의 중 어느 한 항의 방법에 의해 제조된 자외선 및 가시광선 감응 TiO2 광촉매.
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