KR20200013325A - Method manufacturing for membrane Supporter coating on TiO₂ - Google Patents
Method manufacturing for membrane Supporter coating on TiO₂ Download PDFInfo
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- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 title claims abstract description 165
- 239000012528 membrane Substances 0.000 title claims abstract description 48
- 238000000034 method Methods 0.000 title claims abstract description 31
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 21
- 238000000576 coating method Methods 0.000 title abstract description 9
- 239000011248 coating agent Substances 0.000 title abstract description 7
- 239000004408 titanium dioxide Substances 0.000 claims abstract description 52
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 43
- 238000005245 sintering Methods 0.000 claims abstract description 34
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 32
- 239000002002 slurry Substances 0.000 claims abstract description 20
- 239000002270 dispersing agent Substances 0.000 claims abstract description 17
- 238000002156 mixing Methods 0.000 claims abstract description 7
- 238000001035 drying Methods 0.000 claims abstract description 3
- 229910010413 TiO 2 Inorganic materials 0.000 claims description 24
- 229910018072 Al 2 O 3 Inorganic materials 0.000 claims description 23
- 239000000725 suspension Substances 0.000 claims description 15
- 230000008569 process Effects 0.000 claims description 11
- 239000003380 propellant Substances 0.000 claims description 5
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 claims description 4
- 239000007864 aqueous solution Substances 0.000 claims description 4
- 229920000193 polymethacrylate Polymers 0.000 claims description 4
- 239000000126 substance Substances 0.000 abstract description 8
- 239000002904 solvent Substances 0.000 abstract description 5
- 230000008901 benefit Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 230000000052 comparative effect Effects 0.000 abstract description 2
- 230000002093 peripheral effect Effects 0.000 abstract description 2
- 239000000843 powder Substances 0.000 description 9
- 238000002441 X-ray diffraction Methods 0.000 description 8
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 6
- 238000002360 preparation method Methods 0.000 description 6
- 238000007598 dipping method Methods 0.000 description 5
- 239000011941 photocatalyst Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000004907 flux Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000004458 analytical method Methods 0.000 description 3
- 238000007654 immersion Methods 0.000 description 3
- 230000035699 permeability Effects 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 238000000498 ball milling Methods 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000002071 nanotube Substances 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 241000208125 Nicotiana Species 0.000 description 1
- 235000002637 Nicotiana tabacum Nutrition 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical group [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 238000004887 air purification Methods 0.000 description 1
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 235000013361 beverage Nutrition 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000002860 competitive effect Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000004332 deodorization Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 239000012770 industrial material Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000011268 mixed slurry Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 210000004877 mucosa Anatomy 0.000 description 1
- 230000009965 odorless effect Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000005693 optoelectronics Effects 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 125000004430 oxygen atom Chemical group O* 0.000 description 1
- 230000001699 photocatalysis Effects 0.000 description 1
- 238000013032 photocatalytic reaction Methods 0.000 description 1
- 238000002310 reflectometry Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000006557 surface reaction Methods 0.000 description 1
- 230000009967 tasteless effect Effects 0.000 description 1
- 238000005287 template synthesis Methods 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
- 150000003624 transition metals Chemical class 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
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- 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
- B01J37/02—Impregnation, coating or precipitation
- B01J37/024—Multiple impregnation or coating
- B01J37/0242—Coating followed by impregnation
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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
- B01J21/02—Boron or aluminium; Oxides or hydroxides thereof
- B01J21/04—Alumina
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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
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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
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/002—Catalysts characterised by their physical properties
- B01J35/004—Photocatalysts
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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
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/02—Solids
- B01J35/06—Fabrics or filaments
- B01J35/065—Membranes
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- B01J35/39—
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- B01J35/59—
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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
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Abstract
Description
본 발명은 이산화티타늄을 이용한 맴브레인 지지체 제조방법에 관한 것으로, 보다 구체적으로는, 알루미나 튜브를 이산화티타늄(TiO2), 물 및 분사제가 혼합된 현탁액(slurry)에 침지하여 코팅 후 소결공정하여 알루미나 튜브(Al2O3) 지지체 표면에 rutile 구조를 갖는 TiO2층을 형성하여 비대칭(Asymmetric) 구조를 갖는 이산화티타늄을 이용한 맴브레인 지지체 제조방법에 관한 것이다.The present invention relates to a method for manufacturing a membrane support using titanium dioxide, and more specifically, an alumina tube is immersed in a slurry (mixture) of titanium dioxide (TiO 2 ), water and a propellant, coated and sintered and then sintered. (Al 2 O 3 ) relates to a method for preparing a membrane support using titanium dioxide having an asymmetric structure by forming a TiO 2 layer having a rutile structure on a support surface.
본 발명은 알루미나 튜브(Al2O3)의 표면에 Rutile 구조를 갖는 TiO2 층을 형성하여 Asymmetric 구조를 갖는 이산화티타늄을 이용한 맴브레인 지지체 제조방법에 관한 것이다.The present invention TiO 2 having a rutile structure on the surface of the alumina tube (Al 2 O 3 ) The present invention relates to a method for preparing a membrane support using titanium dioxide having an asymmetric structure by forming a layer.
최근 환경규제의 강화와 고유가의 장기화 추세로 친환경 소재와 신에너지 소재에 대한 관심이 집중되고 있다.With the recent tightening of environmental regulations and the prolongation of high oil prices, attention has been focused on eco-friendly and new energy materials.
이산화 타이타늄(titanium dioxide)은 이산화 티타늄 또는 이산화 티탄이라고도 불리며, 화학식은 TiO2이다. 전이금속인 타이타늄 원자 하나와 산소 원자 2개가 결합된 분자로서 분자량은 79.866g/mol이며, 무미 무취의 흰색 가루로서 타이타늄을 공기 중에 노출시키면 쉽게 산소와 반응하여 이산화 타이타늄 피막을 형성한다Titanium dioxide is also called titanium dioxide or titanium dioxide, and the chemical formula is TiO 2 . Molecular weight is 79.866g / mol, which is a molecule of titanium atom and two oxygen atoms, which are transition metals. It is a tasteless, odorless white powder that easily reacts with oxygen to form a titanium dioxide film when exposed to air.
이산화티타늄은 화학적으로 안정하고 활성이 크며 기계적 성질이 양호하고, 산화력이 매우 크고, 은폐력이 커서 모든 용매에 녹지 않는 성질이 있고, 굴절귤이 매우 큰 이방성을 나타내고 산란성 커서, 안료나 고분자 충진제, 화장품 첨가제, 광촉매, 촉매 담채 등 다양한 용도로 사용되고 있고, 광촉매로서 이산화티타늄은 그 활용에 있어서 많은 연구가 진행되고 있다. 대기 및 수질정화, 탈취, 항균을 위한 친환경 소재로 각광받고 있으며, 광촉매 이산화티타늄은 공장의 폐수처리 및 대기정화와 같은 대규모 공공사업에서부터 방향성 유기물인 악취나 담배연기의 제거 등 개인 생활에 이르기까지 다양하게 응용되고 있다.Titanium dioxide is chemically stable, has high activity, good mechanical properties, very high oxidizing power, high hiding power and insoluble in all solvents. It is used in various applications such as additives, photocatalysts, and catalyst tines, and as a photocatalyst, many studies have been made on the use of titanium dioxide. It is widely regarded as an eco-friendly material for air and water purification, deodorization, and antibacterial.Photocatalyst titanium dioxide is diverse from large-scale public works such as wastewater treatment and air purification of factories to personal life such as removal of odor or tobacco smoke, which is aromatic organic substances. Is being applied.
한편, 첨부된 도 1a에서 도시된 바와 같이 이산화티타늄(TiO2)는 온도 프로파일에 따라 루타일(Rutile), 아나타제(anatase), 브루카이트(bookite)의 3가지 상으로 나타내는데, 효율적인 반도체성 재료로 태양전지, 광전자장치, 전력, 반도체장치, 촉매, 전자장치, 포토닉스, 감지장치, 의학, 리튬-이온배터리, 필터, 반사장치 및 고반사 코팅, 물 분해장치에 활용되고, 아나타제 상은 수많은 분야에 적용될 수 있고, 가장 폭넓게 사용되는 물질이다 하지만 루타일 상이 자연에서 가장 풍부하게 생성된다. 이러한 이유로 가장 풍부한 루타일 형태를 안정적인 아나타네 상으로 변형시키는 공정이 필요하다.Meanwhile, as shown in FIG. 1A, titanium dioxide (TiO 2 ) is represented by three phases of rutile, anatase, and brookite according to a temperature profile. Used in solar cells, optoelectronics, power, semiconductor devices, catalysts, electronics, photonics, sensing devices, medicine, lithium-ion batteries, filters, reflectors and high reflectivity coatings, and water decomposers. It is one of the most widely used substances, but the rutile phase is the most abundantly produced in nature. For this reason there is a need for a process that transforms the most abundant rutile form into a stable anatane phase.
일반적으로 이산화티타늄(TiO2)은 도 1b에서 도시된 바와 같이 Anatase 상의 경우 구상 구조를 띄며, Rutile 상의 경우 막대(bar) 형태의 구조를 나타내는데, 이산화티타늄(TiO2)은 도 1c에서 도시된 바와 같이 소결 온도는 1350℃ 이후로는 T소결 온도가 증가할수록 Dense 구조로 바뀌기 때문에 물 투과도(Water Flux) 성능이 하락하게 되는데, 따라서, 적합한 소결 온도는 Max 1200℃ 일때 적절한 소결온도가 된다.In general, titanium dioxide (TiO 2 ) has a spherical structure in the case of Anatase phase as shown in FIG. 1B, and a bar-shaped structure in the case of rutile phase, and titanium dioxide (TiO 2 ) is shown in FIG. 1C. Likewise, since the sintering temperature changes to a dense structure as the T sintering temperature increases after 1350 ° C., the water flux performance decreases. Therefore, the suitable sintering temperature becomes an appropriate sintering temperature when the maximum sintering temperature is 1200 ° C.
또한, 이산화티타늄(TiO2)은 XRD 문헌에서 소결 온도별 구조는 도 1d에 도시된 바와 같이 상온에서는 Anatase가 안정하고 온도가 올라가면서 Rutile 구조의 비율이 증가하여 1000℃ 이후 순수 Rutile 구조를 나타낸다.In addition, the titanium dioxide (TiO 2 ) is a structure according to the sintering temperature in the XRD document as shown in Figure 1d Anatase is stable at room temperature and the ratio of the rutile structure increases as the temperature is increased to show a pure Rutile structure after 1000 ℃.
이와 같은 응용분야에 사용되는 이산화티타늄 분말은 아나타제와 루타일 상을 가지는 분말로서, 태양광을 통해 분말의 표면에 ㅇOH와 O2-를 생성함으로써 분해 특성을 가지게 된다. 이러한 표면 반응을 광촉매 반응이라 하며 그 효율성을 향상시키기 위한 많은 연구들이 진행되고 있다.Titanium dioxide powder used in such an application field is a powder having an anatase and rutile phase, and has decomposition properties by generating OH and O 2- on the surface of the powder through sunlight. Such surface reactions are called photocatalytic reactions and many studies are being conducted to improve their efficiency.
따라서, 본 발명은 이산화티타늄(TiO2)의 Anatase 구조의 파우더(powder)를 입혀 소결(sintering) 과정을 거쳐 소결 후 Rutile 구조 생성 여부 확인하여 이산화티타늄(TiO2) 지지체를 제안하고자 한다.Accordingly, the present invention is to determine whether or titanium dioxide (TiO 2) and then through a powder sintering (powder) coated with the sintering (sintering) process for the structure of the Anatase Rutile structure generated proposes a titanium dioxide (TiO 2) support.
본 발명은 상기의 문제점을 해결하기 위한 것으로, 알루미나 튜브를 이산화티타늄(TiO2), 물 및 분사제가 혼합된 현탁액(slurry)에 침지하여 코팅후 소결공정하여 알루미나 튜브(Al2O3) 지지체 표면에 rutile 구조를 갖는 TiO2 층을 형성하여 비대칭(Asymmetric) 구조를 갖는 이산화티타늄을 이용한 맴브레인 지지체 제조방법을 제공하기 위한 것이다.The present invention is to solve the above problems, the alumina tube is immersed in a suspension (slurry) mixed with titanium dioxide (TiO 2 ), water and propellant, and then coated and sintered to alumina tube (Al 2 O 3 ) support surface The present invention provides a method for preparing a membrane support using titanium dioxide having an asymmetric structure by forming a TiO 2 layer having a rutile structure in a.
또한, 본 발명은 알루미나 튜브(Al2O3)를 이산화티타늄(TiO2)의 Anatase 구조의 powder를 입혀 1000℃ 온도로 소결(sintering) 과정을 거쳐 Rutile 구조 생성을 통해 이산화티타늄(TiO2)의 지지체를 형성할 수 있는 이산화티타늄을 이용한 맴브레인 지지체 제조방법을 제공하기 위한 것이다.In addition, the present invention is coated with an anatase structure powder of alumina tube (Al 2 O 3 ) of titanium dioxide (TiO 2 ) through a sintering process at a temperature of 1000 ℃ to form a rutile structure of titanium dioxide (TiO 2 ) It is to provide a method for producing a membrane support using titanium dioxide that can form a support.
그러나 본 발명의 목적들은 상기에 언급된 목적으로 제한되지 않으며, 언급되지 않은 또 다른 목적들은 아래의 기재로부터 당업자에게 명확하게 이해될 수 있을 것이다.However, the objects of the present invention are not limited to the above-mentioned object, and other objects not mentioned will be clearly understood by those skilled in the art from the following description.
상기의 목적을 달성하기 위해 본 발명의 실시예에 따른 이산화티타늄을 이용한 맴브레인 지지체 제조방법은, 알루미나 튜브(Al2O3)를 이산화티타늄(TiO2), 물 및 분사제(Ammonium polymethacrylate 수용액)가 혼합된 현탁액(slurry)에 침지, 코팅하여 소결공정을 통해 알루미나 튜브(Al2O3) 지지체 표면에 Rutile 구조를 가지고 TiO2 층을 형성하여 비대칭(Asymmetric) 구조를 갖는 지지체로 구성되는 것을 특징으로 한다.In order to achieve the above object, a method for preparing a membrane support using titanium dioxide according to an embodiment of the present invention includes alumina tube (Al 2 O 3 ), titanium dioxide (TiO 2 ), water, and a propellant (Ammonium polymethacrylate aqueous solution). It is characterized by consisting of a support having an asymmetric structure by forming a TiO 2 layer having a rutile structure on the surface of the alumina tube (Al 2 O 3 ) support by immersion and coating in a mixed slurry (slurry). do.
이때, 본 발명의 실시예에 따른 이산화티타늄을 이용한 맴브레인 지지체 제조방법은 상기 이산화티타늄(TiO2), 물 및 분산제를 혼합하여 현탁액(Slurry)을 제조하는 제 1 단계; 상기 제조된 현탁액(Slurry)에 알루미나 튜브(Alumina tube : Al2O3)를 2 ~ 3회 반복 침지하고, 70℃ 온도에서 6시간 이상 건조하여 알루미나 튜브 외주면을 코팅하는 제 2 단계; 및 제 2 단계가 이루어진 후, 건조된 알루미나 튜브를 800℃ ~ 1200℃ 온도 조건에서 소결하는 제 3 단계;를 포함하여 구성되는 것을 특징으로 한다.At this time, the method for producing a membrane support using titanium dioxide according to an embodiment of the present invention comprises the first step of preparing a slurry (Slurry) by mixing the titanium dioxide (TiO 2 ), water and a dispersant; A second step of repeatedly immersing an alumina tube (Alumina tube: Al 2 O 3 ) in the prepared suspension (Slurry) two to three times and drying at 70 ° C. for at least 6 hours to coat an outer surface of the alumina tube; And a third step of sintering the dried alumina tube at 800 ° C. to 1200 ° C. temperature condition after the second step is made.
이때, 본 발명의 실시예에 따른 이산화티타늄을 이용한 맴브레인 지지체 제조방법은 상기 제 1 단계의 현탁액은 이산화티타늄(TiO2) 4.95 중량%, 물 94.06 중량% 및 분산제 0.99 중량%을 혼합하여 구성되고, 상기 제 3 단계의 소결온도는 1000℃로 설정하여 구성되는 것을 특징으로 한다.At this time, the method for producing a membrane support using titanium dioxide according to an embodiment of the present invention is the suspension of the first step is composed of 4.95% by weight of titanium dioxide (TiO 2 ), 94.06% by weight of water and 0.99% by weight of the dispersant, The sintering temperature of the third step is characterized in that it is configured to set to 1000 ℃.
본 발명의 실시예에 따른 이산화티타늄을 이용한 맴브레인 지지체 제조방법은, 알루미나 튜브(Al2O3)를 이산화티타늄(TiO2)의 Anatase 구조의 powder를 입혀 1000℃ 온도로 소결(sintering) 과정을 거쳐 Rutile 구조 생성을 통해 이산화티타늄(TiO2)의 지지체를 형성하여 Alumina 지지체와 규격이 비슷하면서 다양한 용매(feed)에서 안정적인 지지체 역할을 수행할 수 있다.In the method of manufacturing a membrane support using titanium dioxide according to an embodiment of the present invention, the alumina tube (Al 2 O 3 ) is coated with powder of Anatase structure of titanium dioxide (TiO 2 ) and subjected to sintering at 1000 ° C. By forming a rutile structure to form a support of titanium dioxide (TiO 2 ) can be a similar support to the Alumina support, but can serve as a stable support in a variety of solvent (feed).
또한, 본 발명의 실시예 따른 이산화티타늄을 이용한 맴브레인 지지체 제조방법은, Alumina 지지체와 규격이 비슷하면서 TiO2의 화학 안정성, 저항성에 있어서 TiO2 지지체가 비교 우위에 있음으로 다양한 용매(feed)에서 안정적인 지지체 역할을 수행하여 TiO2의 광 촉매 현상을 이용한 맴브레인 역할 수행하여 수처리, 식음료 정제 등 다양한 산업분야에 활용할 수 있는 효과를 제공한다.Further, the membrane substrate manufacturing method using the embodiment of titanium dioxide according to the present invention is stable in various solvents (feed) to the TiO 2 support is in the comparative advantage in chemical stability, resistance and Alumina similar to the support and the standard TiO 2 It serves as a supporter and acts as a membrane using the photocatalytic phenomenon of TiO 2 to provide an effect that can be utilized in various industrial fields such as water treatment, food and beverage purification.
도 1은 이산화티타늄의 물질구조 및 특성을 도시한 사진
도 2는 본 발명의 실시예에 따른 이산화티타늄을 이용한 맴브레인 지지체 제조를 위한 흐름도
도 3은 도 2의 이산화티타늄을 이용한 맴브레인 지지체 제조의 현탁액 제조의 상태도
도 4는 도 2의 이산화티타늄을 이용한 맴브레인 지지체 제조의 침지공정을 도시한 상태도
도 5는 도 2의 이산화티타늄을 이용한 맴브레인 지지체 제조의 소결공정을 통한 상태를 도시한 그래프
도 6은 도 2에 따라 제조된 이산화티타늄을 이용한 맴브레인 지지체의 소결온도에 따른 점막의 치밀성의 결과 사진
도 7은 도 2에 따라 제조된 이산화티타늄을 이용한 맴브레인 지지체의 XRD 분석결과 그래프
도 8은 도 2에 따라 제조된 이산화티타늄을 이용한 맴브레인 지지체의 분석결과
도 9는 도 2에 따라 제조된 이산화티타늄을 이용한 맴브레인 지지체의 SEM
도 10은 본 발명에 따른 이산화티타늄을 이용한 맴브레인 지지체의 구조
도 11은 본 발명에 따른 이산화티타늄을 이용한 맴브레인 지지체의 단면 구조도1 is a photograph showing the material structure and properties of titanium dioxide
2 is a flow chart for manufacturing a membrane support using titanium dioxide according to an embodiment of the present invention
3 is a state diagram of suspension preparation of membrane support preparation using titanium dioxide of FIG.
4 is a state diagram showing a immersion process of manufacturing a membrane support using titanium dioxide of FIG.
FIG. 5 is a graph illustrating a state through a sintering process of preparing a membrane support using titanium dioxide of FIG. 2.
FIG. 6 is a photograph showing the result of the density of mucosa according to the sintering temperature of the membrane support using titanium dioxide prepared according to FIG. 2.
7 is a graph of the XRD analysis of the membrane support using titanium dioxide prepared according to FIG.
8 is an analysis result of the membrane support using titanium dioxide prepared according to FIG.
9 is a SEM of a membrane support using titanium dioxide prepared according to FIG.
10 is a structure of the membrane support using titanium dioxide according to the present invention
11 is a cross-sectional structural view of a membrane support using titanium dioxide according to the present invention
이하, 본 발명의 바람직한 실시예의 상세한 설명은 첨부된 도면들을 참조하여 설명할 것이다. 하기에서 본 발명을 설명함에 있어서, 관련된 공지 기능 또는 구성에 대한 구체적인 설명이 본 발명의 요지를 불필요하게 흐릴 수 있다고 판단되는 경우에는 그 상세한 설명을 생략할 것이다.Hereinafter, a detailed description of a preferred embodiment of the present invention will be described with reference to the accompanying drawings. In the following description of the present invention, detailed descriptions of related well-known functions or configurations will be omitted when it is determined that the detailed description may unnecessarily obscure the subject matter of the present invention.
본 발명의 이산화티타늄을 이용한 맴브레인 지지체는 알루미나 튜브(Al2O3)를 이산화티타늄(TiO2), 물 및 분사제(Ammonium polymethacrylate 수용액)가 혼합된 현탁액(slurry)에 침지, 코팅하여 1000℃ 온도로 소결공정을 통해 알루미나 튜브(Al2O3) 지지체 표면에 Rutile 구조를 가지고 TiO2 층을 형성하여 비대칭(Asymmetric) 구조를 갖도록 구성된 것이다.Membrane support using titanium dioxide of the present invention is immersed and coated alumina tube (Al 2 O 3 ) in a suspension (tlurry) mixed with titanium dioxide (TiO 2 ), water and a propellant (Ammonium polymethacrylate aqueous solution), 1000 ℃ temperature Through the furnace sintering process, the TiO 2 layer is formed on the surface of the alumina tube (Al 2 O 3 ) support with a rutile structure to have an asymmetric structure.
이하, 본 발명에 사용되는 알루미나 튜브(Al2O3 , Aluminium Oxide Alumina)는 화학적으로 땅 껍질에서 실리카(Sillica, SiO2) 다음으로 많은 성분의 하나로서 산업용 소재로 사용되는데, 성분상 알루미나를 80% 이상 함유한 인공광물을 알루미나 세라믹스라 호칭된다. Alumina 99.4% (내열온도 1658℃)는 내약품성이 뛰어나 화학적 침식에 높은 저항을 갖고 있으며, 산과 알칼리, 유기 용매에 거의 영향을 받지 않고, 일반 금속보다 내 마모성이 15 ~ 20배 높고, 일반 금속이 갖고 있는 용융점을 초과하여 Max.1600 ~ 1700℃까지 견디는 특성이 있다.Hereinafter, the alumina tube (Al 2 O 3 , Aluminum Oxide Alumina) used in the present invention is chemically used as an industrial material as one of the many components next to silica (Sillica, SiO 2 ) in the ground shell. Artificial minerals containing more than% are called alumina ceramics. Alumina 99.4% (heat resistance temperature 1658 ℃) has excellent chemical resistance and high resistance to chemical erosion.It is hardly affected by acids, alkalis and organic solvents, and has 15 to 20 times higher wear resistance than ordinary metals. It has the characteristics of enduring the melting point up to Max.1600 ~ 1700 ℃.
이하, 첨부된 도면을 기초로 본 발명에 따른 이산화티타늄을 이용한 맴브레인 지지체 제조방법을 설명하면 다음과 같다. Hereinafter, a method for preparing a membrane support using titanium dioxide according to the present invention will be described with reference to the accompanying drawings.
먼저, 첨부된 도 2는 본 발명에 따른 이산화티타늄을 이용한 맴브레인 지지체 제조를 위한 개략적인 흐름도이고, 도 3은 도 2의 이산화티타늄을 이용한 맴브레인 지지체 제조의 현탁액 제조의 상태도이며, 도 4는 도 2의 이산화티타늄을 이용한 맴브레인 지지체 제조의 침지공정을 도시한 상태도이고, 도 5는 도 2의 이산화티타늄을 이용한 맴브레인 지지체 제조의 소결공정을 결과를 도시한 그래프를 나타낸다.First, FIG. 2 is a schematic flowchart for manufacturing a membrane support using titanium dioxide according to the present invention, FIG. 3 is a state diagram of suspension preparation of membrane support preparation using titanium dioxide of FIG. 2, and FIG. 4 is FIG. Figure 5 is a state diagram showing the immersion process of manufacturing a membrane support using titanium dioxide, Figure 5 shows a graph showing the result of the sintering process of manufacturing a membrane support using titanium dioxide of FIG.
본, 발명에 따른 이산화티타늄을 이용한 맴브레인 지지체의 제조 절차는 ① 현탁액(Slurry) 제조 공정, ② 알루미나 튜브 침지 및 코팅 절차, ③ 소결 절차로 구성된다.The manufacturing procedure of the membrane support using titanium dioxide according to the present invention is composed of ① a suspension (Slurry) manufacturing process, ② alumina tube dipping and coating procedure, ③ sintering procedure.
1. 이산화티타늄을 이용한 맴브레인 지지체 제조1. Preparation of membrane support using titanium dioxide
① 현탁액(Slurry) 제조 ① Preparation of Slurry
알루미나 튜브(Al2O3) 침지 및 코팅을 통해 맴브레인 지지체를 제조하기 현탁액, slurry를 제조하게 된다.To prepare a membrane support through alumina tube (Al 2 O 3 ) dipping and coating to prepare a suspension, slurry.
즉, 이산화티타늄(TiO2) 파우더, 물 및 분산제를 일정 혼합하여 제조하게 되는데, 첨부된 도 3에 도시된 바와 같이 (1) 이산화티타늄(TiO2) 4.95 중량%, 물 94.06 중량% 및 분산제 0.99 중량%, (2) 이산화티타늄(TiO2) 2.55 중량%, 물 96.04 중량% 및 분산제 0.51 중량% (3) 이산화티타늄(TiO2) 1.72 중량%, 물 97.94 중량%, 및 분산제 0.34 중량%을 혼합하여 Zirconia Ball과 함께 Ball Milling을 통하여 현탁액을 제조한다. That is, titanium dioxide (TiO 2 ) powder, water and a dispersant is prepared by mixing a certain, as shown in Figure 3 (1) 4.95% by weight of titanium dioxide (TiO2), 94.06% by weight of water and 0.99 weight of dispersant %, (2) 2.55 wt% titanium dioxide (TiO 2 ), 96.04 wt% water and 0.51 wt% dispersant (3) 1.72 wt% titanium dioxide (TiO 2 ), 97.94 wt% water, and 0.34 wt% dispersant Suspension is made through Ball Milling with Zirconia Ball.
Zirconia Ball weight = solution Total weight(TiO2 + Di water + D.A)Zirconia Ball weight = solution Total weight (TiO 2 + Di water + DA)
상기 분산제는 Ammonium polymethacrylate 수용액을 사용한다.The dispersant uses an aqueous solution of Ammonium polymethacrylate.
상기의 이산화티타늄, 물, 분산제의 용량을 각각 가변적으로 적용, 혼합하여 제조된 현탁액(slurry)을 통해 코팅되고 가공된 알루미나 튜브(Al2O3)의 소결시 그 치밀성을 확인하여 맴브레인 지지체의 물 투과도 등을 확인할 수 있다.The water of the membrane support was confirmed by sintering the alumina tube (Al 2 O 3 ) coated and processed through a slurry prepared by varying the capacity of the titanium dioxide, water, and dispersant, respectively. Permeability and the like can be confirmed.
② 알루미나 튜브 침지 및 코팅 절차② Alumina Tube Dipping and Coating Procedure
상기의 (1) 이산화티타늄(TiO2) 4.95 중량%, 물 94.06 중량% 및 분산제 0.99 중량%, (2) 이산화티타늄(TiO2) 2.55 중량%, 물 96.04 중량% 및 분산제 0.51 중량% (3) 이산화티타늄(TiO2) 1.72 중량%, 물 97.94 중량%, 및 분산제 0.34 중량%의 배합비로 혼합하여 Zirconia Ball과 함께 Ball Milling을 통하여 제조된 현탁액(Slurry)에 알루미나 튜브(Alumina tube : Al2O3)를 2 ~ 3회 반복 침지하고, 그 외주면을 코팅하고 상온에서 6시간 이상 건조한다.(1) 4.95% by weight of titanium dioxide (TiO 2 ), 94.06% by weight of water and 0.99% by weight of dispersant, ( 2 ) 2.55% by weight of titanium dioxide (TiO 2 ), 96.04% by weight of water and 0.51% by weight of dispersant (3) Alumina tube (Alumina tube: Al 2 O 3 ) was added to a slurry prepared through ball milling with Zirconia Ball by mixing in a mixing ratio of 1.72 wt% titanium dioxide (TiO 2 ), 97.94 wt% water, and 0.34 wt% dispersant. ) Is repeatedly immersed 2-3 times, the outer peripheral surface is coated and dried at room temperature for 6 hours or more.
즉, 첨부된 도 4와 같이 알루미나 튜브(alumina tube)를 TiO2 slurry가 담긴 용기에 깊게 넣어다 빼는 공정을 3회 반복하고 70℃ 온도에서 6시간 이상 건조하면 알루미나 튜브 외주면이 코팅된다.That is, as shown in Figure 4 attached to the alumina tube (alumina tube) in the container containing the TiO 2 slurry deeply and repeated three times and dried at 70 ℃ temperature for more than 6 hours the outer surface of the alumina tube is coated.
③ 소결 공정③ Sintering Process
상기 침지 및 코팅 공정을 통해 건조된 알루미나 튜브를 800℃ ~ 1200℃ 온도 조건에서 소결하여 온도 최적화 완료 후 대면적 적용이 되도록 한다. The alumina tube dried through the dipping and coating process is sintered at 800 ° C. to 1200 ° C. temperature to be applied to a large area after temperature optimization is completed.
④ 맴브레인 지지체 확인 ④ Check the membrane support
첨부된 도 2와 같이 본 발명에 따른 이산화티타늄을 이용한 맴브레인 지지체의 전체 제조 공정을 통해 맴브레인 지지체는 현탁액(Slurry) 제조, 알루미나 튜브 침지 및 코팅, 소결공정으로 제조된다.Through the entire manufacturing process of the membrane support using titanium dioxide according to the present invention as shown in Figure 2 attached to the membrane support is prepared by a suspension (Slurry), alumina tube dipping and coating, sintering process.
상기의 절차에 의해 생성된 이산화티타늄이 코팅된 맴브레인 지지체를 SEM, XRD을 통해 미세 구조 및 치밀성은 첨부된 도 3 내지 도 5와 같이 그 결과를 확인할 수 있다.Titanium dioxide-coated membrane support produced by the above procedure can be confirmed through the SEM, XRD microstructure and compactness as shown in Figures 3 to 5 attached.
1) SEM 특성1) SEM characteristics
상기 SEM의 현탁액의 구성 및 소결온도에 따라 막 표면, 평탄도 및 치밀성이 변화하게 되는데, 현탁액 제조시 이산화티타늄(TiO2) 4.95 중량%, 물 94.06 중량% 및 분산제 0.99 중량%으로 혼합된 농도의 경우 가장 좋은 상태로 확인되었고, 상기 농도에 따라 첨부된 도 6에 도시된 바와 같이 800℃ ~ 1200℃까지 온도를 증가시켰을 때, 점점 막 표면이 치밀한 구조로 변화를 확인하였고, 1000℃ 온도 조건에서 평탄도가 가장 뛰어났으며, 균열(crack) 발생도 가장 적어 가장 적합한 온도 조건임을 확인하였다, 한편, 저온(800℃) 에서는 평탄도가 하락되었고, 고온(1200℃)에서는 TiO2의 과도한 치밀성(dense)으로 물 투과도 확보가 어려울 것으로 확인하였다.The surface, flatness and density of the membrane are changed according to the composition and sintering temperature of the SEM suspension. The suspension is prepared at a concentration of 4.95 wt% titanium dioxide (TiO 2 ), 94.06 wt% water, and 0.99 wt% dispersant. When the temperature was confirmed to be in the best state, and when the temperature was increased from 800 ° C. to 1200 ° C. as shown in FIG. The flatness was the best, and the crack was also the smallest, so it was confirmed that it was the most suitable temperature condition. On the other hand, the flatness was lowered at low temperature (800 ° C), and the excessive density of TiO 2 (at high temperature (1200 ° C)). dense), it is difficult to secure water permeability.
2) XRD 특성 2) XRD Characteristics
XRD(X-Ray Diffraction)은 X-ray 회절을 이용하여 어떠한 물질의 구조를 확인하는 것으로, 본 발명에 따른 맴브레인 지지체에 대해 충남대(대전 소재)에 분석을 의뢰하였고, XPERT-PRO (Diffractometer)의 측정장치를 TiO2의 Rutile 구조의 Peak 값을 확인하였다.XRD (X-Ray Diffraction) is to confirm the structure of any material by using X-ray diffraction, the membrane support according to the invention was commissioned for analysis in Chungnamdae (Daejeon), and XPERT-PRO (Diffractometer) The measuring device checked the peak value of the rutile structure of TiO 2 .
첨부된 도 7은 이산화티타늄을 이용한 맴브레인 지지체의 XRD 분석결과 도시한 그래프로서, 이산화티타늄(TiO2) 4.95 중량%, 물 94.06 중량% 및 분산제 0.99 중량%으로 혼합된 현탁액에 침지 및 소결절차를 통해 형성된 맴브레인 지지체는 소결온도 900℃ ~ 1200℃ 까지 Rutile 구조의 Peak를 확인하였고, 800℃ 소결 온도에서는 TiO2 Peak가 발견되지 않았다. (Al: Al2O3 (Support) R : TiO2 (Rutile) )7 is a graph showing the results of XRD analysis of the membrane support using titanium dioxide, which was immersed and sintered in a suspension mixed with 4.95% by weight of titanium dioxide (TiO 2 ), 94.06% by weight of water, and 0.99% by weight of a dispersant. The formed membrane support confirmed the peak of the rutile structure from sintering
2. 실험결과2. Experimental Results
상기의 절차에 의해 생성된 이산화티타늄이 코팅된 맴브레인 지지체에 대하여 기공률(Porosity), 압축강도(Compressive Strength) 및 투과률(Water flux)을 가천대에 분석 의뢰하여 그 결과를 첨부된 도 8과 같이 확인하였다.The porosity, compressive strength, and water flux of the titanium dioxide-coated membrane support produced by the above procedure were requested to be analyzed in a fabric band, and the results are as shown in FIG. 8. Confirmed.
도 8a에 제시된 바와 같이 소결온도(sintering Temp)에 따라 이산화티타늄(TiO2)의 기공률과 알루미나 튜브(Al2O3)의 기공률을 확인하였다.As shown in FIG. 8A, the porosity of titanium dioxide (TiO 2 ) and the alumina tube (Al 2 O 3 ) were confirmed according to the sintering temp.
즉, 기공률(Porosity)은 TiO2 소결 온도에 따른 Porosity 차이는 오차 범위 내로 적었음. 또한, Al2O3 지지체와의 차이는 없음을 확인하였다.In other words, the porosity was less than the difference in porosity according to the TiO 2 sintering temperature. In addition, it was confirmed that there is no difference with the Al 2 O 3 support.
또한, 압축강도(Compressive Strength)의 경우 도 8b와 같이 소결 온도의 변화에도 불구하고 평균 10.13kgf으로 오차 범위로 차이는 없었고, 투과률(Water flux)은 첨부된 도 8c와 같이 소결온도 1100℃, 1200℃ 소결 온도의 경우 치밀한(Dense) TiO2 층으로 인해 온도 증가에 따라 물 투과도가 약 100kg/m2hr씩 감소함을 확인하였다.In addition, in the case of compressive strength, despite the change in sintering temperature as shown in FIG. 8b, there was no difference in the error range with an average of 10.13 kgf, and the transmittance (water flux) was 1100 ° C as shown in FIG. 8c,
결론적으로, 본 발명에 따른 이산화티타늄을 이용한 맴브레인 지지체는 도 9에 도시된 바와 같이 이산화티타늄(TiO2) 4.95 중량%, 물 94.06 중량% 및 분산제 0.99 중량%으로 혼합된 현탁액(Slurry)를 통해 침지되고 1000℃의 온도로 소결절차를 통해 형성될 때 TiO2 무게 분율이 4.95%인 조건에서 가장 평탄도 특성이 우수한 것을 도출하였다.In conclusion, the membrane support using titanium dioxide according to the present invention is immersed through a slurry (Slurry) mixed with titanium dioxide (TiO 2 ) 4.95% by weight, 94.06% by weight water and 0.99% by weight dispersant as shown in FIG. And when formed through a sintering procedure at a temperature of 1000 ° C it was derived that the most flatness characteristics under the condition that the TiO 2 weight fraction is 4.95%.
상기의 절차에 의해 생성된 이산화티타늄을 이용한 맴브레인 지지체는 도 10 및 도 11과 같이 Symmetric 구조의 Al2O3 지지체 표면에 Rutile 구조를 갖는 TiO2 층이 형성된 Asymmetric 구조를 갖는 지지체가 구성되고,Membrane support using titanium dioxide produced by the above procedure is composed of a support having an asymmetric structure in which a TiO 2 layer having a rutile structure is formed on the surface of the Al 2 O 3 support having a symmetric structure, as shown in FIGS.
소결 온도 1000℃ 및 TiO2 분율 4.95%일때 표면의 평탄도가 가장 우수하고, 기공률(Porosity), 압축강도(Compressive Strength) 및 투과률(Water flux)의 분석 결과, Symmetric Al2O3 지지체 성능과 사실상 차이가 거의 없음을 확인하였고, 이에 대면적에 적용하기 위해 730mm 길이(0.02m2)의 지지체 표면에 TiO2 층을 형성하여 Al2O3 지지체와 성능 비교시 차이가 없었음을 확인하였다.When the sintering temperature is 1000 ℃ and TiO 2 fraction is 4.95%, the surface flatness is the best, and the results of analysis of porosity, compressive strength and water flux show that the performance of Symmetric Al 2 O 3 support It was confirmed that there is virtually no difference, and TiO 2 was applied to the support surface of 730 mm length (0.02 m 2 ) to apply to the large area. Forming a layer confirmed that there was no difference in performance comparison with the Al 2 O 3 support.
따라서, 본 발명의 이산화티타늄이 코팅된 맴브레인 지지체는 Alumina 지지체와 Spec이 비슷하면서 TiO2의 화학 안정성(Stability), 저항성 (Resistance)에 있어서 TiO2 지지체가 더 비교 우위에 있으며, 다양한 용매(feed)에서 안정적인 지지체 역할을 수행할 수 있다.Thus, the titanium dioxide-coated membrane support of the present invention is in the TiO 2 support is further competitive advantage in chemical stability (Stability), resistance (Resistance) of as similar to the Alumina substrate and the Spec TiO 2, various solvents (feed) Can serve as a stable support.
이상과 같이, 본 명세서와 도면에는 본 발명의 바람직한 실시예에 대하여 개시하였으며, 비록 특정 용어들이 사용되었으나, 이는 단지 본 발명의 기술 내용을 쉽게 설명하고 발명의 이해를 돕기 위한 일반적인 의미에서 사용된 것이지, 본 발명의 범위를 한정하고자 하는 것은 아니다. 여기에 개시된 실시예 외에도 본 발명의 기술적 사상에 바탕을 둔 다른 변형 예들이 실시 가능하다는 것은 본 발명이 속하는 기술 분야에서 통상의 지식을 가진 자에게 자명한 것이다.As described above, the present specification and drawings have been described with respect to the preferred embodiments of the present invention, although specific terms are used, it is only used in a general sense to easily explain the technical contents of the present invention and help the understanding of the present invention. It is not intended to limit the scope of the present invention. It will be apparent to those skilled in the art that other modifications based on the technical idea of the present invention can be carried out in addition to the embodiments disclosed herein.
Claims (3)
The alumina tube (Al 2 O 3 ) is immersed and coated in a slurry mixed with titanium dioxide (TiO 2 ), water, and a propellant (Ammonium polymethacrylate aqueous solution), and the alumina tube (Al 2 O 3 ) is supported through a sintering process. A method of manufacturing a membrane support using titanium dioxide, comprising a support having an asymmetric structure by forming a TiO 2 layer having a rutile structure on a surface thereof.
상기 이산화티타늄(TiO2), 물 및 분산제를 혼합하여 현탁액(Slurry)을 제조하는 제 1 단계;
상기 제조된 현탁액(Slurry)에 알루미나 튜브(Alumina tube : Al2O3)를 2 ~ 3회 반복 침지하고, 70℃ 온도에서 6시간 이상 건조하여 알루미나 튜브 외주면을 코팅하는 제 2 단계; 및
제 2 단계가 이루어진 후, 건조된 알루미나 튜브를 800℃ ~ 1200℃ 온도 조건에서 소결하는 제 3 단계;를 포함하여 구성되는 것을 특징으로 이산화티타늄을 이용한 맴브레인 지지체 제조방법.
The method of claim 1,
A first step of preparing a slurry by mixing the titanium dioxide (TiO 2 ), water, and a dispersant;
A second step of repeatedly immersing an alumina tube (Alumina tube: Al 2 O 3 ) in the prepared suspension (Slurry) 2 to 3 times and drying at 70 ° C. for at least 6 hours to coat an outer surface of the alumina tube; And
After the second step is made, the third step of sintering the dried alumina tube at 800 ℃ ~ 1200 ℃ temperature conditions; comprising a method of manufacturing a membrane support using titanium dioxide.
상기 제 1 단계의 현탁액은 이산화티타늄(TiO2) 4.95 중량%, 물 94.06 중량% 및 분산제 0.99 중량%을 혼합하여 구성되고,
상기 제 3 단계의 소결온도는 1000℃로 설정하여 구성되는 것을 특징으로 하는 이산화티타늄을 이용한 맴브레인 지지체 제조방법.The method of claim 2,
The suspension of the first step is composed by mixing 4.95% by weight of titanium dioxide (TiO 2 ), 94.06% by weight of water and 0.99% by weight of dispersant,
Method for producing a membrane support using titanium dioxide, characterized in that the sintering temperature of the third step is set to 1000 ℃.
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| 1. 이산화티탄 나노튜브의 제조방법, 이산화티탄 나노튜브,이를 이용한 광전기화학전지, 및 상기 광전기화학전지를이용한 수소 생산방법(PREPARATION METHOD FOR TITANIUM DIOXIDE NANOTUBE, TITANIUM DIOXIDE NANOTUBE, PHOTOELECTROCHEMICAL CELL USING THE SAME, AND HYDROGEN PRODUCTION METHOD USING THE PHOTOELECTROCHEMICAL CELL)(특허공개공보 제10-2009-0080776호) |
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