| 초록 |
Zero-dimensional graphene based nanostructures (GQDs) exhibit unique photoluminescence (PL) and photocatalytic properties due to the pronounced quantum confinement effect and graphene carrier’s behaviour modification by effective energy band gap of GQDs. Here, well-structured graphene quantum dots were synthesized via several top down and bottom up approaches. Different synthesis methods provide several layered GQDs with unique edge order and crystalline structure. Based on correlation between exciton lifetime and crystalline size of GQDs, crucial effect of different layered structure and edge states on the luminescence and photocatalytic activity were elucidated. Furthermore, Photodegradation and pollutant adsorption capacity were also investigated. |
