| 초록 |
We have fabricated magnetite nanoparticle-graphene oxide (GO) hybrids through a non-chemical and one-step process in which nanoparticles are attached to hydrophobic regions of graphite oxide (multi-layered GO) assisted by ultrasound in an aqueous solution. Simultaneously, graphite oxide was peeled off to form GO. Unlike chemical methods such as precipitation, oxygen-containing functional groups on GO have not been consumed or reduced during the hybridization, and therefore this hybrid had a good water solubility and high adsorption capacity for heavy metal ions such as Pb (II) and Au (III) that usually interact with oxygen-containing functional groups on GO. After the adsorption, the hybrid was easily collected using a magnet. This method can also be applied for hybridizing various hydrophobic nanoparticles with GO. |
