C8-modified magnetic graphene oxide applied to adsorption of DEHP from aqueous solution

2018 2nd International Workshop on Renewable Energy and Development

能源学;经济学

Wang, Rui^1 ; Ma, Xiaoguo^1 ; Zhang, Xiaojun^1 ; Guo, Lihui^1

School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou

510006, China^1

关键词: Adsorption capacities;    Adsorption performance;    Di-2-ethylhexyl phthalate;    Freundlich isotherm model;    Hydrogen bond interaction;    Hydrophobic interactions;    Pseudo-second-order kinetic models;    Transmission electronic microscopies;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/153/2/022002/pdf
DOI  :  10.1088/1755-1315/153/2/022002

来源: IOP

【 摘 要 】

C8-modified magnetic graphene oxide (C8-MGO) was synthesized and characterized using Fourier transform infrared spectroscopy and transmission electronic microscopy. The C8-MGO was applied to the adsorption of di-(2-ethylhexyl) phthalate (DEHP) from aqueous solution, and the adsorption performance was examined. The experimental results indicated that the sorption equilibrium was achieved within 2.5 h, the adsorption capacity was 2.5 mg/g, and the adsorption process could be well described by Freundlich isotherm model and pseudo-second-order kinetic model. There are π-π interaction, hydrogen-bond interaction and hydrophobic interaction of C8-MGO with DEHP. The prepared C8-MGO can be a potential sorbent for removal of DEHP at low levels from aqueous solution.