论文部分内容阅读
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。
Graphene was functionalized one step by electrochemical method using ionic liquid [A336] [P507]. Functionalized graphene was labeled as GNSA, and characterized by FESEM, FT-IR and XPS. Due to the special surface of graphene and the extraction performance of [A336] [P507], GNSA was used as an adsorbent to study its performance of eliminating Pb (Ⅱ) and Cd (Ⅱ) in wastewater. The effects of GNSA on the adsorption properties of Pb (Ⅱ) and Cd (Ⅱ) under different p H values, contact time and initial concentration were investigated. GNSA still maintained excellent Pb (Ⅱ) and Cd (Ⅱ) adsorption properties after 5 cycles. GNSA has great potential as a metal ion adsorbent.