title: Green and Tunable Decoration of Graphene with Spherical Nanoparticles Based on Laser Ablation in Water: A Case of Ag Nanoparticle/Graphene Oxide Sheet Composites.
abstract: A simple and green strategy is presented to decorate graphene with nanoparticles, based on laser ablation of targets in graphene auqeous solution. Ag and graphene oxide (GO) are chosen as model materials. The surface of GO sheets is strongly anchored with spherical Ag nanoparticles. The density and size of the Ag nanoparticles can be easily tuned by laser ablation conditions. Further, the GO sheets can be decorated with other nanoparticles from simple metals or semiconductors to multicomponent hybrids. Additionally, the Ag nanoparticle/GO sheet colloids can be utilized as blocks to build three-dimensional structures, such as sandwich membranes by evaporation-induced self-assembly. These graphene-based composite materials could be very useful in catalysis, sensors, and nanodevices. Particularly, the Ag nanoparticle/GO sheet sandwich composite membranes exhibit excellent surface-enhanced Raman scattering performance and possess the huge potential in trace-detecting persistent organic pollutants in the environment.
authors: College of Physics Science and Technology, Yangzhou University , Yangzhou 225002, P. R. China.
authors: Hui
authors: H
authors: He
authors: College of Physics Science and Technology, Yangzhou University , Yangzhou 225002, P. R. China.
authors: Haibo
authors: H
authors: Wang
authors: College of Physics Science and Technology, Yangzhou University , Yangzhou 225002, P. R. China.
authors: Kai
authors: K
authors: Li
authors: College of Physics Science and Technology, Yangzhou University , Yangzhou 225002, P. R. China.
authors: Jun
authors: J
authors: Zhu
authors: College of Physics Science and Technology, Yangzhou University , Yangzhou 225002, P. R. China.
authors: Jianshuang
authors: J
authors: Liu
authors: College of Physics Science and Technology, Yangzhou University , Yangzhou 225002, P. R. China.
authors: Xiangdong
authors: X
authors: Meng
authors: College of Physics Science and Technology, Yangzhou University , Yangzhou 225002, P. R. China.
authors: Xiaoshuang
authors: X
authors: Shen
authors: College of Physics Science and Technology, Yangzhou University , Yangzhou 225002, P. R. China.
authors: Xianghua
authors: X
authors: Zeng
authors: Key Laboratory of Materials Physics, Anhui Key Laboratory of Nanomaterials and Nanotechnology, Institute of Solid State Physics, Chinese Academy of Sciences , Hefei 230031, P. R. China.
authors: Weiping
authors: W
authors: Cai