KR100853855B1 - Visible-Ray Photocatalyst and Preparation Method The Same - Google Patents
Visible-Ray Photocatalyst and Preparation Method The Same Download PDFInfo
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- 239000011941 photocatalyst Substances 0.000 title claims abstract description 16
- 238000002360 preparation method Methods 0.000 title 1
- 229910052751 metal Inorganic materials 0.000 claims abstract description 46
- 239000002184 metal Substances 0.000 claims abstract description 46
- 239000003054 catalyst Substances 0.000 claims abstract description 27
- 239000002131 composite material Substances 0.000 claims abstract description 17
- 229910052741 iridium Inorganic materials 0.000 claims abstract description 13
- 229910052732 germanium Inorganic materials 0.000 claims abstract description 5
- 229910052748 manganese Inorganic materials 0.000 claims abstract 2
- 229910052719 titanium Inorganic materials 0.000 claims abstract 2
- 238000002156 mixing Methods 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims 1
- GKOZUEZYRPOHIO-UHFFFAOYSA-N iridium atom Chemical compound [Ir] GKOZUEZYRPOHIO-UHFFFAOYSA-N 0.000 abstract description 10
- 239000010936 titanium Substances 0.000 abstract description 10
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 abstract description 9
- 239000011777 magnesium Substances 0.000 abstract description 8
- 239000011572 manganese Substances 0.000 abstract description 6
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 5
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 abstract description 3
- 229910052749 magnesium Inorganic materials 0.000 abstract description 3
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 abstract description 3
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 230000003647 oxidation Effects 0.000 abstract 2
- 238000007254 oxidation reaction Methods 0.000 abstract 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 abstract 1
- -1 indoor light Substances 0.000 abstract 1
- 239000005416 organic matter Substances 0.000 abstract 1
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 27
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 27
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 description 6
- MIVBAHRSNUNMPP-UHFFFAOYSA-N manganese(2+);dinitrate Chemical compound [Mn+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O MIVBAHRSNUNMPP-UHFFFAOYSA-N 0.000 description 6
- 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 6
- 230000000052 comparative effect Effects 0.000 description 5
- 230000001699 photocatalysis Effects 0.000 description 5
- 238000003756 stirring Methods 0.000 description 5
- 229910010413 TiO 2 Inorganic materials 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- 238000003980 solgel method Methods 0.000 description 4
- IEXRMSFAVATTJX-UHFFFAOYSA-N tetrachlorogermane Chemical compound Cl[Ge](Cl)(Cl)Cl IEXRMSFAVATTJX-UHFFFAOYSA-N 0.000 description 4
- DANYXEHCMQHDNX-UHFFFAOYSA-K trichloroiridium Chemical compound Cl[Ir](Cl)Cl DANYXEHCMQHDNX-UHFFFAOYSA-K 0.000 description 4
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 3
- 238000002835 absorbance Methods 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 229910001629 magnesium chloride Inorganic materials 0.000 description 3
- 229910017604 nitric acid Inorganic materials 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 230000032900 absorption of visible light Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 description 2
- 229910001862 magnesium hydroxide Inorganic materials 0.000 description 2
- 239000000347 magnesium hydroxide Substances 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 239000012855 volatile organic compound Substances 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- YBMRDBCBODYGJE-UHFFFAOYSA-N germanium oxide Inorganic materials O=[Ge]=O YBMRDBCBODYGJE-UHFFFAOYSA-N 0.000 description 1
- 230000031700 light absorption Effects 0.000 description 1
- 150000002736 metal compounds Chemical class 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- PVADDRMAFCOOPC-UHFFFAOYSA-N oxogermanium Chemical compound [Ge]=O PVADDRMAFCOOPC-UHFFFAOYSA-N 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- 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
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/16—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J23/32—Manganese, technetium or rhenium
- B01J23/34—Manganese
-
- 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
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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
- B01J37/04—Mixing
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- Chemical Kinetics & Catalysis (AREA)
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Abstract
본 발명은 실내등에서 방출되는 가시광 영역의 불빛에서도 광촉매의 효과를 낼수 있도록 산화티탄을 복합금속 형태로 만든 촉매 및 그 제조방법에 관한 것이다. 상기의 목적을 달성하기 위한 본 발명은 티타늄과 망간에 이리듐과 마그네슘, 게르마늄중 하나이상의 금속과의 복합금속 촉매를 제조하여 가시광선에서도 유기물 산화효과가 뛰어난 장점을 가지고 있다.The present invention relates to a catalyst made of titanium oxide in the form of a composite metal and a method for producing the same in order to produce a photocatalyst effect even in a visible light emitted from a room lamp. The present invention for achieving the above object has the advantage of excellent organic oxidation effect in the visible light by producing a composite metal catalyst of at least one metal of iridium, magnesium, germanium in titanium and manganese.
가시광촉매, 산화티탄, 실내등, 유기물 산화 Visible photocatalyst, titanium oxide, indoor light, organic matter oxidation
Description
도 1은 촉매 종류에 따른 자외선-가시광선(UV-VIS) 파장별 흡수도를 나타낸 도1 is a diagram showing absorbance according to wavelength of ultraviolet-visible light (UV-VIS) according to catalyst type
본 발명은 산화티탄 광촉매에 관한 것으로, 종래의 기술은 광촉매로 이산화티탄을 사용하고 용매로 물과 알콜류를 사용하여 자외선을 조사받아 광촉매 작용을 일으키게 하여왔다. 그러나 가시광선에서는 전혀 광촉매효과를 나타내지 못하여 아직은 기술적으로 한계에 도달한 상태이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a titanium oxide photocatalyst, and the prior art uses a titanium dioxide as a photocatalyst and water and alcohols as a solvent to irradiate ultraviolet light to cause a photocatalytic action. However, in the visible light, the photocatalytic effect is not exhibited at all, and the technical limit is still reached.
본 발명에서는 종래의 기술에 나타난 단점들을 제거하여, 가시광선 영역에서 광촉매 효과를 발현시켜, 실내등에서도 우수한 광촉매 효과를 가져와 유기물이나 휘발성유기화합물등을 제거하는 가시광촉매 및 제조방법을 제공하는데 있다.The present invention is to provide a visible photocatalyst and a manufacturing method for removing organic matters and volatile organic compounds by removing the disadvantages shown in the prior art, by expressing the photocatalytic effect in the visible light region, bringing excellent photocatalytic effect even in the room.
본 발명에 사용되며 가시광에서 반응하는 가시광촉매는 Ti 금속으로써 TiO2 분말에 망간 금속으로써 망간나이트레이트를 함침시키고, 여기에 이리듐 금속으로써 이리듐클로라이드나 마그네슘 금속으로써 염화마그네슘이나 수산화마그네슘, 게르마늄 금속으로써 염화게르마늄이나 산화게르마늄 중에서 1개 이상의 금속을 함침시켜 110℃에서 6시간 이상 건조시킨후 300℃ ∼ 500℃ 사이에서 2시간 이상 소성하여 Ti-Mn-M 복합금속 가시광 촉매를 만든다. 여기서 M은 금속을 나타내며 Ir, Mg, Ge중 하나 이상의 금속이다.The visible photocatalyst used in the present invention and reacted in visible light is Ti metal, impregnated TiO 2 powder with manganese metal as manganese metal, and iridium chloride or magnesium metal as iridium metal, magnesium chloride, magnesium hydroxide or germanium chloride as metal. One or more metals are impregnated in germanium or germanium oxide, dried at 110 ° C. for at least 6 hours, and then calcined at 300 ° C. to 500 ° C. for at least 2 hours to form a Ti-Mn-M composite metal visible catalyst. Where M represents a metal and is at least one of Ir, Mg, and Ge.
한편, 가시광에서 반응하는 Ti-Mn-M 가시광 촉매를 만들기 위하여 다른 방법으로는, Ti 금속으로써 TiCl4 또는 티타늄테트라이소프로폭사이드와 망간금속으로써 망간나이트레이트를 혼합하고, 여기에 이리듐 금속으로써 이리듐클로라이드나 마그네슘 금속으로써 염화마그네슘이나 수산화마그네슘, 게르마늄 금속으로써 염화게르마늄 중에서 1개 이상의 금속 화합물을 혼합하여 질산이나 황산 또는 염산 수용액상에서 60℃ ∼ 150℃에서 60rpm 이상으로 3시간 이상 교반하면서 졸겔법으로 제조하여 Ti-Mn-M 복합금속 가시광촉매를 만든다. 여기서 M은 금속을 나타내며 Ir, Mg, Ge중 하나 이상의 금속이다. Ti-Mn-M 복합금속 촉매에 사용된 금속의 비율은 Ti + Mn : M = 100 : 1에서 1 : 1 의 무게비로 혼합하여 사용하며, Ti : Mn = 10 : 1에서 1:10의 무게비로 혼합하여 사용한다. 상기의 금속들간의 무게비를 벗어나게 되면 촉매에서 가시광에서의 흡수도가 떨어져 가시광촉매의 효과가 현저히 떨어진다.On the other hand, in order to make the Ti-Mn-M visible light catalyst reacting in the visible light, another method, TiCl 4 or titanium tetraisopropoxide as a Ti metal and manganese nitrate as a manganese metal are mixed, and iridium as an iridium metal Prepared by the sol-gel method while stirring at least one metal compound of magnesium chloride, magnesium hydroxide, germanium chloride as a chloride or magnesium metal, and germanium chloride as a metal, and stirring at 60 rpm or more at 60 ° C. to 150 ° C. in an aqueous solution of nitric acid, sulfuric acid, or hydrochloric acid for at least 3 hours. To form a Ti-Mn-M composite metal visible photocatalyst. Where M represents a metal and is at least one of Ir, Mg, and Ge. The ratio of metal used in the Ti-Mn-M composite metal catalyst is used by mixing in a weight ratio of Ti + Mn: M = 100: 1 to 1: 1, and in a weight ratio of Ti: Mn = 10: 1 to 1:10. Use by mixing. When the weight ratio between the metals is out of the absorbance of visible light in the catalyst, the effect of the visible photocatalyst is significantly reduced.
도 1은 UV-VIS Spectrophotometer로 촉매에서 자외선과 가시광선의 흡수도를 측정한 것이다. Ti-Mn-M 촉매로 Ti-Mn-Ir 촉매의 가시광선 흡수도가 실내등에서 많이 나오는 가시광선 영역인 500∼600nm 파장 영역에서 흡수도가 매우 높게 나타났으며, 이것은 이 파장 영역에서 광촉매효과가 우수함을 나타내 준다. 그리고 Ti-Mn-Ge 촉매나 Ti-Mn-Mg 촉매의 경우도 Ti-Mn-Ir 촉매의 경우와 거의 비슷한 가시광선 흡수도를 나타낸다. 반면에 Ti-Mn 촉매나 Ti-M 촉매로 Ti-Ir 촉매의 경우 자외선 영역인 400nm 이하의 파장에서는 자외선 흡수도가 높으나 500∼600nm 의 가시광선 파장영역에서는 흡수도가 매우 낮아 가시광선 영역에서는 광촉매 효과가 거의 없음을 보여준다. Ti-M 촉매로 Ti-Mg 촉매나 Ti-Ge 촉매도 Ti-Ir 촉매와 거의 비슷한 가시광선 흡수도를 나타낸다.1 is a UV-VIS Spectrophotometer to measure the absorption of ultraviolet light and visible light in the catalyst. As the Ti-Mn-M catalyst, the absorption of visible light of the Ti-Mn-Ir catalyst was very high in the 500-600 nm wavelength range, which is the visible light region that is often found in indoor lamps. Shows excellence. In addition, the Ti-Mn-Ge catalyst or the Ti-Mn-Mg catalyst exhibits almost the same visible light absorption as that of the Ti-Mn-Ir catalyst. On the other hand, the Ti-Mn catalyst or the Ti-M catalyst has a high ultraviolet absorbance at a wavelength of 400 nm or less, which is an ultraviolet region, but a very low absorption at a visible wavelength range of 500 to 600 nm, and thus a photocatalyst in the visible region. It shows little effect. Ti-Mg catalysts and Ti-Ge catalysts have a similar absorption of visible light as Ti-M catalysts.
표1은 10리터 용량의 글로브박스내에 벽면에 실시예1에서 실시예4까지와 비교예1에서 비교예4까지의 촉매를 코팅한후 형광등빛에서 2시간 경과후의 포름알데히드, 톨루엔의 제거율을 나타내었다. 광원으로는 20와트 형광등을 사용하였으며, 초기 포름알데히드와 톨루엔의 농도는 각각 200ppm이었다.Table 1 shows the removal rate of formaldehyde and toluene after 2 hours in fluorescent light after coating catalysts of Examples 1 to 4 and Comparative Examples 1 to 4 on the wall in a 10 liter glove box. It was. A 20-watt fluorescent lamp was used as the light source, and the initial concentration of formaldehyde and toluene was 200 ppm, respectively.
실시예 1)Example 1
Ti-Mn-M 복합금속 가시광촉매 성분이 Ti 금속으로써 TiO2 분말 10g에 망간 금속으로써 망간나이트레이트 3g과 여기에 M 금속은 이리듐이며, 이리듐 금속으로써 이리듐클로라이드 3g을 함침시켜 110℃에서 6시간 이상 건조시킨후 400℃ 에서 2시간동안 소성하여 Ti-Mn-Ir 복합금속 촉매를 만들고, 이것을 10리터 글로브박스 벽면에 코팅한후 광원으로는 20와트 형광등을 사용하고 초기 농도가 각각 200ppm의 포름알데히드와 톨루엔을 주입한후 2시간후에 제거율을 측정하였다.The Ti-Mn-M composite metal visible photocatalyst component is impregnated with 10 g of TiO 2 powder as a Ti metal, 3 g of manganese nitrate as a manganese metal, and M metal is iridium, and 3 g of iridium chloride as an iridium metal is impregnated at 110 ° C. for at least 6 hours. After drying, firing was carried out at 400 ° C. for 2 hours to form a Ti-Mn-Ir composite metal catalyst, which was coated on the wall of a 10 liter glove box, using a 20 watt fluorescent lamp as a light source, and an initial concentration of 200 ppm of formaldehyde and The removal rate was measured 2 hours after injecting toluene.
실시예 2)Example 2
Ti-Mn-M 복합금속 가시광촉매 성분이 Ti 금속으로써 티타늄테트라이소프로폭사이드 10g과 망간 금속으로써 망간나이트레이트 3g, M 금속은 이리듐이며, 이리듐 금속으로써 이리듐클로라이드 3g을 혼합하여 질산 수용액상에서 90℃에서 60rpm 이상으로 3시간 동안 교반하면서 졸겔법으로 제조하여 Ti-Mn-Ir 복합금속 촉매를 만들고, 이것을 10리터 글로브박스 벽면에 코팅한후 광원으로는 20와트 형광등을 사용하고 초기 농도가 각각 200ppm의 포름알데히드와 톨루엔을 주입한후 2시간후에 제거율을 측정하였다.The Ti-Mn-M composite metal visible photocatalyst was mixed with 10 g of titanium tetraisopropoxide as a Ti metal, 3 g of manganese nitrate as a manganese metal, and iridium M as a iridium metal, and 3 g of iridium chloride as an iridium metal. The Ti-Mn-Ir composite metal catalyst was prepared by sol-gel method with stirring at 60 rpm for more than 3 hours, coated on a 10 liter glove box wall, using a 20 watt fluorescent lamp as a light source, and the initial concentration was 200 ppm. The removal rate was measured 2 hours after the injection of formaldehyde and toluene.
실시예 3)Example 3
Ti-Mn-M 복합금속 가시광촉매에서 M 금속 성분으로 Ir 대신 Mg 이며, Mg 금속으로써 염화마그네슘 3g을 사용한것 외에는 실시예1과 동일함In the Ti-Mn-M composite metal visible photocatalyst, Mg is Mg instead of Ir, and is the same as that of Example 1 except that 3g of magnesium chloride is used as Mg metal.
실시예 4)Example 4
Ti-Mn-M 복합금속 가시광촉매에서 M 금속 성분으로 Ir 대신 Ge 이며, Ge 금속으로써 염화게르마늄 3g을 사용한것 외에는 실시예2와 동일함In the Ti-Mn-M composite metal visible photocatalyst, Ge was used instead of Ir as the M metal component, and the same as in Example 2 except that 3 g of germanium chloride was used as the Ge metal.
비교예 1)Comparative Example 1)
Ti-Mn 복합금속 촉매 성분이 Ti 금속으로써 TiO2 분말 10g에 망간 금속으로써 망간나이트레이트 3g을 함침시켜 110℃에서 6시간 이상 건조시킨 후 400℃ 에서 2시간동안 소성하여 Ti-Mn 복합금속 촉매를 만들고, 이것을 10리터 글로브박스 벽 면에 코팅한후 광원으로는 20와트 형광등을 사용하고 초기 농도가 각각 200ppm의 포름알데히드와 톨루엔을 주입한후 2시간후에 제거율을 측정하였다.The Ti-Mn composite metal catalyst component was impregnated with 10 g of TiO 2 powder as a Ti metal and 3 g of manganese nitrate as a manganese metal, dried at 110 ° C. for at least 6 hours, and calcined at 400 ° C. for 2 hours. It was coated on a 10 liter glove box wall, and a 20 watt fluorescent lamp was used as a light source, and the removal rate was measured after 2 hours of injecting formaldehyde and toluene having an initial concentration of 200 ppm.
비교예 2)Comparative Example 2)
Ti-Ir 복합금속 촉매 성분이 Ti 금속으로써 TiO2 분말 10g에 망간 금속으로써 망간나이트레이트 3g을 함침시켜 110℃에서 6시간 이상 건조시킨 후 400℃ 에서 2시간동안 소성하여 Ti-Mn 복합금속 촉매를 만들고, 이것을 10리터 글로브박스 벽면에 코팅한후 광원으로는 20와트 형광등을 사용하고 초기 농도가 각각 200ppm의 포름알데히드와 톨루엔을 주입한후 2시간후에 제거율을 측정하였다.The Ti-Ir composite metal catalyst component was impregnated with 10 g of TiO 2 powder as a Ti metal and 3 g of manganese nitrate as a manganese metal, dried at 110 ° C. for at least 6 hours, and calcined at 400 ° C. for 2 hours to prepare a Ti-Mn composite metal catalyst. It was coated on the wall of a 10 liter glove box and 20 watt fluorescent lamps were used as the light source, and the removal rate was measured 2 hours after the initial concentration of 200 ppm of formaldehyde and toluene were injected.
비교예 3)Comparative Example 3)
Mn-Ir 복합금속 촉매 성분이 망간 금속으로써 망간나이트레이트 10g, 이리듐 금속으로써 이리듐클로라이드 3g을 혼합하여 질산 수용액상에서 90℃에서 60rpm 이상으로 3시간 동안 교반하면서 졸겔법으로 제조하여 Mn-Ir 복합금속 촉매를 만들고, 이것을 10리터 글로브박스 벽면에 코팅한후 광원으로는 20와트 형광등을 사용하고 초기 농도가 각각 200ppm의 포름알데히드와 톨루엔을 주입한후 2시간후에 제거율을 측정하였다.Mn-Ir composite metal catalyst component was prepared by sol-gel method by mixing 10 g of manganese nitrate as a manganese metal and 3 g of iridium chloride as iridium metal and stirring at 90 ° C. or higher at 60 ° C. for 3 hours in an aqueous solution of nitric acid. After coating on the 10 liter glove box wall, a 20-watt fluorescent lamp was used as a light source, and the removal rate was measured 2 hours after injection of formaldehyde and toluene having an initial concentration of 200 ppm each.
비교예 4)Comparative Example 4)
Ti 광촉매 성분이 Ti 금속으로써 티타늄테트라이소프로폭사이드 10g을 질산 수용액상에서 90℃에서 60rpm 이상으로 3시간 동안 교반하면서 졸겔법으로 제조하여, 이것을 10리터 글로브박스 벽면에 코팅한후 광원으로는 20와트 형광등을 사용 하고 초기 농도가 각각 200ppm의 포름알데히드와 톨루엔을 주입한후 2시간후에 제거율을 측정하였다.10 g of titanium tetraisopropoxide as a Ti metal was prepared by a sol-gel method while stirring for 3 hours at 90 ° C. and 60 rpm in a nitric acid solution, and coated on a 10 liter glove box wall. Fluorescent lamps were used and the removal rate was measured 2 hours after the injection of formaldehyde and toluene of 200 ppm each.
표1. 형광등빛에서 포름알데히드, 톨루엔 제거율Table 1. Removal of Formaldehyde and Toluene from Fluorescent Lamps
이상에서 상세히 설명한 바와 같이, 본 발명에 사용된 가시광촉매는 가시광선 영역인 형광등빛에서도 광촉매효과가 우수하며, 휘발성유기화합물이나 유기물을 상온에서 산화시키는데 우수한 효과를 제공한다.As described in detail above, the visible photocatalyst used in the present invention is excellent in the photocatalytic effect even in the fluorescent light, which is the visible light region, and provides an excellent effect of oxidizing volatile organic compounds or organic substances at room temperature.
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| CN105727921A (en) * | 2016-01-30 | 2016-07-06 | 中国建筑材料科学研究总院 | Nano TiO2-diatomite composite photocatalyst and preparation method thereof |
| KR101735564B1 (en) * | 2016-09-08 | 2017-05-15 | 이엔에프씨 주식회사 | Whitening Agent Composition and Method for Preparing the Same |
| KR101735566B1 (en) * | 2016-09-08 | 2017-05-18 | 이엔에프씨 주식회사 | Dental Bleaching Composition and Method for Preparing the Same |
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| JP2001246264A (en) | 2000-03-08 | 2001-09-11 | Mitsubishi Heavy Ind Ltd | Photocatalyst |
| US20020006865A1 (en) | 2000-07-17 | 2002-01-17 | Kabushiki Kaisha Toyota Chuo Kenkyusho | Photocatalytic substance |
| KR20050065489A (en) * | 2005-06-03 | 2005-06-29 | 김문찬 | Flame retardant and visible ray reaction photo catalyst and preparation method |
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| US20020006865A1 (en) | 2000-07-17 | 2002-01-17 | Kabushiki Kaisha Toyota Chuo Kenkyusho | Photocatalytic substance |
| KR20050065489A (en) * | 2005-06-03 | 2005-06-29 | 김문찬 | Flame retardant and visible ray reaction photo catalyst and preparation method |
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| CN105727921A (en) * | 2016-01-30 | 2016-07-06 | 中国建筑材料科学研究总院 | Nano TiO2-diatomite composite photocatalyst and preparation method thereof |
| KR101735564B1 (en) * | 2016-09-08 | 2017-05-15 | 이엔에프씨 주식회사 | Whitening Agent Composition and Method for Preparing the Same |
| KR101735566B1 (en) * | 2016-09-08 | 2017-05-18 | 이엔에프씨 주식회사 | Dental Bleaching Composition and Method for Preparing the Same |
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