中文摘要：

利用离子液体[A336][P507]通过电化学方法一步功能化石墨烯。功能化的石墨烯标记为GNSA,并对其进行了FESEM、FT-IR和XPS等表征。由于石墨烯的特殊表面和[A336][P507]的萃取性能,GNSA作为一种吸附剂,研究了其消除污水中Pb（Ⅱ）和Cd（Ⅱ）的性能。主要考察了GNSA在不同p H值、接触时间和初始浓度等条件下对Pb（Ⅱ）和Cd（Ⅱ）的吸附性能影响。在循环使用5次后,GNSA仍然保持优异的Pb（Ⅱ）和Cd（Ⅱ）吸附性能。GNSA作为金属离子吸附剂具有巨大的应用潜力。

英文摘要：

Graphene was functionalized with ionic liquid [A336][P507] via a one-step electrochemical method. The obtained material,abbreviated as GNSA,was characterized by FESEM,FT-IR and XPS.Due to the special surface of graphene and the extraction behavior of [A336][P507],GNSAwas experimented as an adsorbent to remove the Pb（ Ⅱ） and Cd（ Ⅱ） from water solution. The adsorption behaviors of GNSAto Pb（ Ⅱ） and Cd（ Ⅱ） under different conditions,such as p H,contact time and initial concentration of the solution,were all studied. GNSAperformed well in regeneration study even after 5 times recycles. The results suggest that GNSAhas great potential application as metal ions adsorbent.