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。
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.
出处
《黑龙江大学自然科学学报》
CAS
北大核心
2015年第5期645-653,共9页
Journal of Natural Science of Heilongjiang University
基金
Supported by the National Natural Science Foundation of China(20876034)
the Natural Science Foundation of Heilongjiang Province(B201311)
the Natural Science Foundation of Jilin Province(201115001)
the College Project of Heihe College(KJY201507)
