MANUFACTURING OF GRAPHENE NANOSHEET FOR CARBON DIOXIDE ADSORBENT

摘要

PURPOSE: A graphene nanosheet for a carbon dioxide adhesive and a manufacturing method thereof are provided to improve a selective absorptivity with respect to carbon dioxide and to prevent adsorption of various gases as well as obtaining the selective adsorptivity by providing an appropriate interlayer structure suitable for carbon dioxide adsorption. CONSTITUTION: A manufacturing method of a graphene nanosheet for a carbon dioxide adhesive comprises the steps of: mixing graphite to a sulfuric acid and potassium permanganate and reacting at a temperature of 30 to 40°C for 1 to 3 hours; adding distilled water to the mixture, increasing a temperature to 95 to 100°C and maintaining for 10 to 20 minutes; adding distilled water; adding hydrogen peroxide; removing a sulfate ion and a chlorine ion from the mixture by centrifuging using a 5wt% hydrochloric acid solution; washing the resultant with acetone and drying in an oven to prepare a graphite oxide; and heat-treating the graphite oxide in a vacuum atmosphere at a temperature of 100 to 1200°C. [Reference numerals] (AA) Graphite oxide; (BB) Graphene nanosheet