title: A new rapid chemical route to prepare reduced graphene oxide using copper metal nanoparticles.
abstract: Copper metal nanoparticles were used as a reducing agent to reduce graphene oxide (GO). The reaction was complete in about 10 min and did not involve the use of any toxic reagents or acids that are typically used in the reduction of GO by Zn and Fe powders. The high reduction activity of the Cu nanoparticles, compared to Cu powder, may be the result of the formation of Cu₂O nanoparticles. The effect of the mass ratio of the metal to GO for this reduction was also investigated. The reduction of the GO was verified by ultraviolet-visible absorption spectroscopy, x-ray diffraction, thermogravimetric analysis, Raman spectroscopy, x-ray photoelectron spectroscopy and transmission electron microscopy. After reduction, Cu₂O supported on reduced GO was formed and showed superior catalytic ability for the degradation of a model dye pollutant, methylene blue.
authors.affiliation: School of Science, Tianjin University, Tianjin 300072, People's Republic of China.
authors.forename: Tao
authors.initials: T
authors.lastname: Wu
authors.forename: Jianping
authors.initials: J
authors.lastname: Gao
authors.forename: Xiaoyang
authors.initials: X
authors.lastname: Xu
authors.forename: Wei
authors.initials: W
authors.lastname: Wang
authors.forename: Chunjuan
authors.initials: C
authors.lastname: Gao
authors.forename: Haixia
authors.initials: H
authors.lastname: Qiu
mesh_terms: D002384:Catalysis; D003300:Copper / Q000737:chemistry*; D003460:Crystallization / Q000379:methods*; D006108:Graphite / Q000138:chemical synthesis*; D046911:Macromolecular Substances / Q000737:chemistry; D008422:Materials Testing; D053768:Metal Nanoparticles / Q000737:chemistry* / Q000648:ultrastructure*; D008968:Molecular Conformation; D010087:Oxides / Q000138:chemical synthesis*; D010316:Particle Size; D013499:Surface Properties
chemical_list: D046911:Macromolecular Substances; D010087:Oxides; D006108:Graphite; D003300:Copper