| 초록 |
Recently, hybridization with graphene has received much interest as a proper method to overcome the drawbacks of TiO2. However, most TiO2/graphene composites employed μm-sized sheets of graphene on which TiO2 nanoparticles were loaded but this geometry suffers from the low contact area between graphene and TiO2. To enhance the interfacial contact area, we recently introduced two types of TiO2/graphene composites: 1) Reduced nanosized GO-coated TiO2 nanoparticles (NGOTs), and 2) GO sheets embedded into the matrix of TiO2 nanofiber (GO-TiO2 NF). These two are clearly different approaches from the typical graphene/TiO2 composite with the particles-on-a-sheet geometry. Both approaches were characterized by various analytical methods and tested their photocatalytic and photoelectrochemical activities. |
