Microfluidics-generated graphene oxide microspheres and their application to removal of perfluorooctane sulfonate from polluted water
microfluidic, graphene oxide, perfluorooctane sulfonate (PFOS), adsorption, water treatment
Monodisperse graphene oxide (GO) microspheres were synthesized via microfluidics technology as a novel adsorbent for rapid (in 2 min) and high efficiency (98%) removal of perfluorooctane sulfonate (PFOS) from water. This novel material is a potential solution for treatment of bioaccumulative organic polluted water. To achieve improved performance, Mg2+ was introduced into GO, and the metal composite exhibited significantly improved PFOS removal efficiency owing to bridging and interaction between Mg2+ and the PFOS molecules, which was supported by density functional theory and X-ray photoelectron spectroscopy (XPS). This facile strategy may be extended to the synthesis of other spheres with unique structural features for application in water treatment.
Tsinghua University Press
Changwei Zhao,Jing Fan,Dong Chen,Yi Xu,Tao Wang, Microfluidics-generated graphene oxide microspheres and their application to removal of perfluorooctane sulfonate from polluted water. NanoRes.2016, 9(3): 866–875