Metal-organic Frameworks/Graphene Oxide Composites: Preparation and Applications in Dye Absorption

Keywords: Metal-organic frameworks; Graphene; Dye; Wastewater; Porous materials Abstract. Metal-organic frameworks (MIL-100)/graphene oxide composites (MOFs/GO) with different graphene oxide (GO) contents were prepared under hydrothermal conditions. The resultant products were then characterized by powder X-ray diffraction, infrared spectra, thermogravimetric analysis and nitrogen adsorption desorption. Methyl orange and methyl red solutions were used as simulative dye wastewater to evaluate the adsorption performance of resulted MOFs/GO composites. The results show that adsorption rate and saturated adsorption amount of dye are affected by the contents of GO in the composites and will be improved simultaneously by adding appropriate amount of GO.