Preparation of new three-dimensional graphene oxide materials and its adsorption of methylene blue

作者：Wu Lipeng; Liu Shujuan; Zhang Weiqiang; Sun Lei; Ma Jianguo^*

来源：Gongneng Cailiao/Journal of Functional Materials, 2015, 46(16).

DOI：10.3969/j.issn.1001-9731.2015.16.012

• Initial concentration
• Methylene Blue
• Morphology and structures
• New three-dimensional structures
• Phytic acids
• Sorption capacities
• Sorption efficiency
• Three-dimensional graphene

A new three-dimensional structure of graphene materials (PA-GO) was prepared via the reaction of phytic acid with graphene oxide via hydrothermal synthesis method. The morphology and structure of PA-GO was then characterized by SEM, FT-IR, XRD and it demonstrates that the material has a sponge-alike structure. Then the material was used as the adsorbent for methylene blue (MB), and the effects of adsorption time, initial concentration and temperature were investigated, respectively. The results indicated that the adsorption process was completed within 4.5 h, the maximum sorption capacity of PA-GO for MB was evaluated to be 92.7 mg/g, and the sorption efficiency of MB on the PA-GO increases with the rise of temperature, the adsorption isotherms were according with the Langmuir model.