Cetyl trimethyl ammonium bromide (CTAB) containing wastewater from dressing plant may pose a detrimental threaten to mineral beneficiation and environment. The adsorption of CTAB in aqueous solutions by graphene oxide (GO) has been studied in this work. X‐ray diffraction, X‐ray photoelectron spectroscopy, Fourier‐transform infrared spectrometer, and atomic force spectroscopy were used to characterize GO. The results indicated that the adsorption followed the Freundlich model could be well described by pseudo‐second order kinetic model. The adsorption capacity was much bigger than activated carbon and many natural clay minerals. The adsorption process was endothermic, and the adsorption mechanism of CTAB onto GO was proven to be controlled by surface complexation, hydrogen bonding, and electrostatic attraction.

中文翻译：

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氧化石墨烯有效去除废水中的十六烷基三甲基溴化铵

选矿厂废水中的十六烷基三甲基溴化铵（CTAB）可能对矿物选矿和环境构成有害威胁。在这项工作中，已经研究了氧化石墨烯（GO）在水溶液中对CTAB的吸附。用X射线衍射，X射线光电子能谱，傅里叶变换红外光谱仪和原子力光谱来表征GO。结果表明，利用伪二级动力学模型可以很好地描述遵循Freundlich模型的吸附。吸附能力比活性炭和许多天然粘土矿物大得多。吸附过程是吸热的，并且证明了CTAB在GO上的吸附机理受表面络合，氢键和静电吸引的控制。