ALUMINA NANOSHEET USING GRAPHENE OXIDE TEMPLATE AND METHOD FOR PREPARING THE SAME

摘要

The present invention relates to an alumina nanosheet using a graphene oxide template and a method of preparing the same. According to the present invention, an alumina nanosheet is prepared by a method using a graphene oxide template, so that the preparation is easy and carried out in large volumes, and the alumina nanosheet prepared by the method has large surface areas and gap volumes and superior performance in removing heavy metals, especially arsenic (As), and organic metals. A method of preparing an alumina nanosheet using a graphene oxide template may comprise the steps of: (1) distributing and mixing a graphene oxide and an alumina precursor in an non-aqueous solvent; (2) hydrolyzing the alumina precursor in the mixture by applying an aqueous medium to the mixture: (3) drying the hydrolyzed mixture to manufacture an alumina graphene oxide complex; and (4) thermally cracking the alumina graphene oxide complex under the temperature of 500-800°C.