The Role of graphene in Fe3O4/graphene Composites on the Adsorption of Methylene Blue and Their Kinetic Study

3rd International Conference on Functional Materials Science 2016

Taufik, A.^1,2 ; Saleh, R.^1,2

Integrated Laboratory of Energy and Environment, Fakultas MIPA, Universitas Indonesia, Kampus UI Depok, Depok

16424, Indonesia^1

Departemen Fisika, Fakultas MIPA, Universitas Indonesia, Kampus UI Depok, Depok

16424, Indonesia^2

关键词: Adsorption capacities;    Adsorption process;    Good stability;    Hydrothermal methods;    Kinetic reactions;    Methylene Blue;    Pseudo second order kinetics;    Surface area analysis;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/196/1/012003/pdf
DOI  :  10.1088/1757-899X/196/1/012003

来源: IOP

【 摘 要 】

In this study Fe3O4with addition of graphene materials were investigated as an adsorbent for removing organic dye from the aqueous solution. Fe3O4-graphene were synthesized using hydrothermal method. The contents of graphene were varied from 5, 10, and 15 weight percent (wt%). Their physical properties were investigated using X-ray diffraction (XRD), thermogravimetric analysis (TGA), and surface area analysis. The cubic spinel of the samples was detected which attributed to the existence of Fe3O4materials. The removal of organic dye was investigated using adsorption process. Methylene blue was selected as a model of organic pollutant. Their kinetic reaction indicates that the samples follow the pseudo second order kinetic reaction with maximum adsorption capacity was 48 mg/g. The samples performed good stability for removing methylene blue using adsorption process with 95 % efficiencies.