Microfluidics-generated graphene oxide microspheres and their application to removal of perfluorooctane sulfonate from polluted water

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• 作者：Changwei Zhao ; Jing Fan ; Dong Chen ; Yi Xu ; Tao Wang
• 关键词：microfluidic ; graphene oxide ; perfluorooctane sulfonate (PFOS) ; adsorption ; water treatment
• 刊名：Nano Research
• 出版年：2016
• 出版时间：March 2016
• 年：2016
• 卷：9
• 期：3
• 页码：866-875
• 全文大小：1,903 KB
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• 作者单位：Changwei Zhao (1) (2)
  Jing Fan (2)
  Dong Chen (2)
  Yi Xu (1)
  Tao Wang (3)
  
  1. State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China
  2. School of Engineering and Applied Sciences, Harvard University, 29 Oxford St., Cambridge, MA, 02138, USA
  3. The State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing, 100084, China
  
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Chinese Library of Science
  Chemistry
  Nanotechnology
  
• 出版者：Tsinghua University Press, co-published with Springer-Verlag GmbH
• ISSN：1998-0000

文摘

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.