Recent Advances in Applications of Hybrid Graphene Materials for Metals Removal from Wastewater

被引：75
作者：
Abu-Nada, Abdulrahman [1 ]
McKay, Gordon [1 ]
Abdala, Ahmed [2 ]
机构：
[1] Hamad Bin Khalifa Univ, Div Sustainable Dev, Coll Sci & Engn, POB 34110, Doha, Qatar
[2] Texas A&M Univ Qatar, Chem Engn Program, POB 23874, Doha, Qatar
来源：
NANOMATERIALS | 2020年 / 10卷 / 03期
关键词：
graphene nanocomposites; heavy metals; adsorption; regeneration; ONE-POT SYNTHESIS; CHITOSAN/GRAPHENE OXIDE COMPOSITE; CU II IONS; AQUEOUS-SOLUTION; HEAVY-METALS; EFFICIENT REMOVAL; ADSORPTION BEHAVIOR; TERNARY NANOCOMPOSITE; HEXAVALENT CHROMIUM; EFFECTIVE ADSORBENT;
D O I：
10.3390/nano10030595
中图分类号：
O6 [化学];
学科分类号：
0703 ;
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.
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页数：31
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