Three-dimensional graphene/Fe3O4 magnetic nanometer adsorption material

• Main Authors: MA XUEWEN, HUANG YU, DONG CHUAN, DONG WENJUAN, LI YONG, LIANG WENTING
• Format: Patent
• Language: Chinese; English
• Published: 30.11.2018
• Subjects: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; METALLURGY; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; THEIR RELEVANT APPARATUS; TRANSPORTING; TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

The invention provides a three-dimensional graphene/Fe3O4 magnetic nanometer adsorption material. The material is obtained by ultrasonically crushing graphene oxide, adding Fe<3+> and L-Cys and performing one-pot coprecipitation under an alkaline condition. Characterization by a scanning electron microscope, a transmission electron microscope, X-ray diffraction, infrared spectroscopy, N2 adsorption and desorption and other methods prove that the three-dimensional graphene grafted with Fe3O4 magnetic nanoparticles has a good three-dimensional structure. The nanometer material synthesis method is simple and low in cost, has a large specific surface area, rich hydroxyl groups and free carboxyl groups and good magnetic properties, and can be used as an adsorption material for dye contaminantsin an aqueous solution. Adsorption property research is carried out by taking cationic methylene blue (MB), anionic Congo red (CR) and neutral type neutral red (NR) dyes as model molecules, and indicates that the material can