• 文献标题:   Recent Advances in Applications of Hybrid Graphene Materials for Metals Removal from Wastewater
  • 文献类型:   Review
  • 作  者:   ABUNADA A, MCKAY G, ABDALA A
  • 作者关键词:   graphene nanocomposite, heavy metal, adsorption, regeneration
  • 出版物名称:   NANOMATERIALS
  • ISSN:  
  • 通讯作者地址:   Hamad Bin Khalifa Univ
  • 被引频次:   2
  • DOI:   10.3390/nano10030595
  • 出版年:   2020

▎ 摘  要

The presence of traces of heavy metals in wastewater causes adverse health effects on humans and the ecosystem. Adsorption is a low cost and eco-friendly method for the removal of low concentrations of heavy metals from wastewater streams. Over the past several years, graphene-based materials have been researched as exceptional adsorbents. In this review, the applications of graphene oxide (GO), reduce graphene oxide (rGO), and graphene-based nanocomposites (GNCs) for the removal of various metals are analyzed. Firstly, the common synthesis routes for GO, rGO, and GNCs are discussed. Secondly, the available literature on the adsorption of heavy metals including arsenic, lead, cadmium, nickel, mercury, chromium and copper using graphene-based materials are reviewed and analyzed. The adsorption isotherms, kinetics, capacity, and removal efficiency for each metal on different graphene materials, as well as the effects of the synthesis method and the adsorption process conditions on the recyclability of the graphene materials, are discussed. Finally, future perspectives and trends in the field are also highlighted.