Graphene modified carbon nanosheets for electrochemical detection of Pb(II) in water
作者： Jin-Tao Zhang , Zhen-Yu Jin , Wen-Cui Li , Wei Dong , An-Hui Lu
DOI: 10.1039/C3TA12612A
关键词:
摘要: A novel graphene modified carbon nanosheet (GMCN) was constructed by using oxide as the shape-directing agent, and resorcinol formaldehyde precursors through a surface assembly process. The GMCN can be used an efficient electrochemical sensing material for Pb(II) detection in aqueous solution square wave anodic stripping voltammetry. Due to integration of porous features resin-based excellent electrical conductivity graphene, such materials possess superior adsorption capacity fast electron-transfer kinetics. sensitivity is high 92.86 μA μmol−1 limit low 1.12 nM has been reached. thickness nanosheets tuned varying reactant mass ratio, which ensures tuneable area. good balance between area allows towards Pb(II), signal-to-background ratio rapid electron ion diffusion paths reactions well, significantly improves performance Pb(II). Potentially, field heavy metal detection.
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