Preparing method of graphene oxide functionalized with Fe3O4

• Main Authors: WON DONG KWAN, YOON YEO JOON, YANG WOO SEOK
• Format: Patent
• Language: English; Korean
• Published: 05.04.2019
• Subjects: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; COMPOUNDS THEREOF; INORGANIC CHEMISTRY; METALLURGY; NON-METALLIC ELEMENTS; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; THEIR RELEVANT APPARATUS; TRANSPORTING

표면에 균일하고 다량의 산화철이 생성되어 우수한 특성의 산화그래핀을 얻을 수 있는 산화철로 기능화된 산화그래핀 제조방법이 제안된다. 본 산화철로 기능화된 산화그래핀 제조방법은 중심이 동일하고 반경은 상이한 외부원통 및 내부원통을 포함하여, 내부원통의 회전에 따라 유체를 흐르게 하는 쿠에트-테일러 반응기에, 산화그래핀, FeCl·4HO 및 FeCl·6HO를 투입하는 제1단계; 및 암모니아 수용액을 투입하는 제2단계;를 포함한다. Suggested is a method for producing a graphene oxide functionalized with an iron oxide, which can obtain a graphene oxide having excellent characteristics by having a large quantity of an iron oxide evenly produced on the surface thereof. The method for producing a graphene oxide functionalized with a iron oxide comprises: a first step of introducing a graphene oxide, FeCl2·4H2O and FeCl3·6H2O into a Couette-Taylor reactor which comprises an outer cylinder and an inner cylinder having the same center and different radii and allows a fluid to flow according to the rotation of the inner cylinder; and a second step of introducing an aqueous ammonia solution into the reactor.