Magnetically Separable Fe3O4/SnO2/Graphene Adsorbent for Waste Water Removal

4th International Conference on Advanced Materials Science and Technology

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

Departemen Fisika, Fakultas MIPA, Department of Physics, Faculty of Mathematics and Natural Sciences, Universitas Indonesia, Depok

16424, Indonesia^1

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

16424, Indonesia^2

关键词: Equilibrium adsorption capacity;    Fe3O4/SnO2;    grapheme;    Langmuir adsorption isotherms;    Methylene Blue;    Methylene blue solution;    SnO2;    Thermal gravimetric analyses (TGA);   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/202/1/012009/pdf
DOI  :  10.1088/1757-899X/202/1/012009

来源: IOP

【 摘 要 】

Our previous study conducted the SnO2and SnO2/graphene adsorption efficiency in Methylene Blue removal from aqueous solution, however, the difficulty of adsorbent separation from the methylene blue solution limits its efficiency. Therefore, in this work, SnO2and SnO2/graphene was combined with Fe3O4to improve the separation process and adsorption performance for removing the organic dyes. Fe3O4/SnO2/grapheme were synthesized by using the co-precipitation method. The graphene content was varied from 1, 3, and 5 weight percent (wt%). The crystalline phase and thermal stability of the samples were characterized by using X- ray Diffraction (XRD) and Thermal Gravimetric Analysis (TGA). The adsorption ability of the samples was investigated by using significant adsorption degradation of MB observed when the graphene in Fe3O4/SnO2nanocomposite was added. The other parameters such as pH and initial concentration have also been investigated. The reusability was also investigated to study the stability of the samples. The fitting of equilibrium adsorption capacity result indicates that the adsorption mechanism of Fe3O4/SnO2nanocomposite with graphene tends to follow the Langmuir adsorption isotherm model.