• 文献标题:   Efficiently removing cetyl trimethyl ammonium bromide from wastewater by graphene oxide
  • 文献类型:   Article
  • 作  者:   CHANG LP, CAO YJ, PENG WJ, LI C, FAN GX, SONG XY, SHI XX
  • 作者关键词:   adsorption mechanism, cetyl trimethyl ammonium bromide, graphene oxide
  • 出版物名称:   SURFACE INTERFACE ANALYSIS
  • ISSN:   0142-2421 EI 1096-9918
  • 通讯作者地址:   Zhengzhou Univ
  • 被引频次:   1
  • DOI:   10.1002/sia.6800 EA MAY 2020
  • 出版年:   2020

▎ 摘  要

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.