| 초록 |
A novel approach to link graphene quantum dots (GQDs) with graphene was explored via chemical surface modification of graphene using 1,5-diaminonapthalene (DAN). Interestingly, the population of GQDs increased with increasing the molar concentration of the DAN solution. The synthesized-GDGS was applied to photocatalyst for the degradation of methylene blue (MB) under visible light irradiation. The GDGS showed 1.6 times enhanced photocatalytic performance than pristine GQDs due to influences of graphene such as increase of visible light absorbance, charge separation, and adsorption on organic pollutants. This facile synthetic approach, which connects graphene to GQDs for the first time, is expected to promote the application of GQDs in photocatalyst and also in many other areas. |
