Abstract:
The present invention relates to zero-valent iron including lipids and a manufacturing method thereof. The present invention can prevent the formation of an oxide membrane on the surface of nanosize zero-valent iron (nZVI) by placing lipids on the surface of the nanosize zero-valent iron (nZVI), and can improve the adsorption of organic pollutants. The nanosize zero-valent iron including lipids according to the present invention comprises nanosize zero-valent iron; and lipids arranged on the surface of the nanosize zero-valent iron and chelated by the nanosize zero-valent iron. The lipids are materials including carboxylic acids and may be composed of oleic acid or trioleic acid.
Abstract:
본 발명은 나노영가철(nZVI) 표면에 지질층(脂質層, lipids)을 구비시킴으로써 나노영가철(nZVI) 표면에 산화막이 형성되는 것을 방지함과 함께 유기오염물질의 흡착특성을 향상시킬 수 있는 지질층을 구비한 나노영가철 및 그 제조방법에 관한 것으로서, 본 발명에 따른 지질층을 구비한 나노영가철은 나노영가철; 및 상기 나노영가철 표면에 구비되며, 상기 나노영가철과 킬레이트 결합을 이루는 지질층을 포함하여 이루어지는 것을 특징으로 하며, 상기 지질층은 카르복실산을 포함하는 물질이며, 올레인산 또는 트리올레인산으로 구성될 수 있다.
Abstract:
The present invention relates to a membrane combined with a titanium dioxide nanostructure, capable of suppressing reduction of a specific surface area or the permeability of the membrane in fixing titanium dioxide to the membrane, and maximizing the removal efficiency of micro contaminants by titanium dioxide and the membrane, and a fabricating method thereof. The manufacturing method of a membrane combined with a titanium dioxide nanostructure comprises a step of laminating a polymer nanostructure on a membrane; a step of forming a titanium dioxide nanostructure; and a step of fixing the titanium dioxide nanostructure on the membrane by thermal press, wherein the step of laminating a polymer nanostructure on a membrane comprises a process of preparing a mixed solution including a polymer precursor and a membrane, and a process of depositing polymer nanowires on the membrane by electrospinning of the mixed solution. [Reference numerals] (202) Laminate polymer nanostructure on a membrane by electrospinning a mixed solution containing a polymer precursor; (203) Prepare a mixed solution including a titanium dioxide precursor and a substrate; (204) Laminate a titanium dioxide nanostructure on the substrate by electrospinning the mixed solution containing the titanium dioxide precursor; (205) Control the ratio of crystal phase of the titanium dioxide nanostructure by plasticizing the substrate; (206) Fix the polymer nanostructure and the titanium dioxide nanostructure on the membrane through thermal press; (S201) Prepare the mixed solution including the polymer precursor and the membrane
Abstract:
본 발명은 하이드로탈사이트(hydrotalcite)의 표면에 황산염을 코팅시켜 인의 흡착효율을 향상시킬 수 있는 황산염이 코팅된 하이드로탈사이트 및 그 제조방법에 관한 것으로서, 본 발명에 따른 황산염이 코팅된 하이드로탈사이트의 제조방법은 하이드로탈사이트와 황산 수용액을 각각 준비하는 단계와, 상기 황산 수용액 내에 하이드로탈사이트를 침지시키는 단계 및 침지된 하이드로탈사이트를 꺼내 270∼300℃의 온도에서 소성하여 하이드로탈사이트의 표면에 황산염을 형성하는 단계를 포함하여 이루어지는 것을 특징으로 한다.
Abstract:
PURPOSE: A hydrotalcite on which sulfate is coated and a manufacturing method thereof are provided to enhance phosphorus uptake efficiency by coating sulfate on hydrotalcite surface. CONSTITUTION: A manufacturing method of A hydrotalcite on which sulfate is coated comprises the following steps: respectively preparing hydrotalcite and sulfuric acid solution(s101); dipping hydrotalcite into the sulfuric acid solution(s102); and sintering the hydrotalcite at 270-300 deg. Celsius and forming sulfate on hydrotalcite surface(s103). The concentration of the sulfuric acid solution is 0.1-0.3M. The hydrotalcite preparation step comprises the following steps: rotating a reactor containing hydrotalcite powder; agitating with acrylamide based binder; and manufacturing pellet form hydrotalcite by sintering. [Reference numerals] (S101) Respectively preparing hydrotalcite and sulfuric acid solution; (S102) Dipping hydrotalcite into the sulfuric acid solution; (S103) Sintering the hydrotalcite at 270-300 deg. Celsius and forming sulfate on hydrotalcite surface
Abstract:
본 발명은 이산화티타늄을 분리막에 고정시킴에 있어서 분리막의 비표면적이 감소되거나 분리막의 투과성능이 저하되는 것을 억제함과 함께 이산화티타늄 및 분리막에 의한 미량오염물질 제거 효율을 극대화할 수 있는 이산화티타늄 나노구조체가 결합된 분리막 및 그 제조방법에 관한 것으로서, 본 발명에 따른 이산화티타늄 나노구조체가 결합된 분리막의 제조방법은 ; ; 및 를 포함하여 이루어지며, 상기 는, 고분자 전구체를 포함한 혼합용액 및 분리막을 준비하는 과정과, 상기 혼합용액을 전기방사하여 분리막 상에 고분자 나노선을 증착하는 과정을 포함하여 구성되는 것을 특징으로 한다.
Abstract:
PURPOSE: Substrate fixing titanium dioxide nano-wires, a method for manufacturing the same, and a water treating method using the same are provided to maximize the activity of a photo-catalyst by optimizing the crystal phase ratio of titanium dioxide. CONSTITUTION: A method for manufacturing a substrate fixing titanium dioxide nano-wires includes the following: Titanium dioxide nano-wires are fixed to a substrate. A mixed solution containing a titanium dioxide precursor and the substrate are prepared(S201). The mixed solution is electro-spun to the substrate in order to deposit the titanium dioxide nano-wires(S202). The titanium dioxide nano-wires are fixed on the substrate through a thermal compressing operation(S203). The anatase crystal phase and rutile crystal phase ratios of the titanium dioxide nano-wires are adjusted(S204).