Graphene filter was manufactured by the manufacturing method and applies graphene and graphene filter water purifier filter

• Main Authors: YOON SUK GOO, AN, SEONG PIL
• Format: Patent
• Language: English; Korean
• Published: 03.02.2017
• Subjects: CHEMISTRY; METALLURGY; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; SEPARATION; TRANSPORTING; TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

The present invention relates to a method for manufacturing a graphene filter for wastewater purification that can be manufactured quickly, inexpensively, and without depending on chemical deposition or mechanical peeling and has a high water purification performance, a graphene filter manufactured by the same, and a graphene filter water purification device. The method for manufacturing the graphene filter for wastewater purification according to the present invention includes: an interposed layer electrospinning step in which an interposed layer is formed by electrospinning of a polymer-dissolved solution on a surface of a substrate where chains cross each other to form a mesh; and an outermost layer coating step in which an outermost layer is formed after the interposed layer electrospinning step by making a surface of the interposed layer coated with graphene. By the method for manufacturing the graphene filter for wastewater purification according to the present invention, the surface of the substrate is coated with the polymer by the electrospinning, the surface of the polymer is coated with the graphene after the coating, and thus the graphene filter can be manufactured quickly and inexpensively. In addition, the graphene is rarely separated after the coating, and thus a high-quality graphene filter can be manufactured. 본 발명은 화학증착법 또는 기계적 박리법에 의하지 않고 신속하고 저렴한 비용으로 그래핀 필터를 제조할 수 있으며 우수한 정수 능력을 갖는 오수정화용 그래핀 필터의 제조방법 및 이에 의해 제조된 그래핀 필터 및 그래핀 필터 정수장치에 관한 것이다. 본 발명에 따른 오수정화용 그래핀 필터의 제조방법은, 쇠줄이 교차하여 그물코가 형성된 기판의 표면에 폴리머를 녹인 용액을 전기방사하여 개재층을 형성하는 개재층 전기방사단계와, 개재층 전기방사단계 후 그래핀을 개재층의 표면에 코팅시켜 최외층을 형성하는 최외층 코팅단계를 포함한다. 본 발명의 오수정화용 그래핀 필터의 제조방법은 기판의 표면에 폴리머를 전기방사하여 코팅하고, 코팅된 폴리머의 표면에 그래핀을 코팅하여 제조됨으로써, 신속하고 저렴한 비용으로 그래핀 필터를 제조할 수 있을 뿐만 아니라 코팅된 그래핀이 쉽게 탈락되지 않아 고품질의 그래핀 필터를 제조할 수 있다.