The metal catalyst free carbon nanotubes (MCFCNTs) is synthesized via Carbo Thermal Carbide Conversion method which leads to residual transition metal free in the CNTs structure. The new material shows very good results in stripping voltammetry detecting heavy metal ions, such as Pb2+, Cd2+,  Zn2+and Mn2+. The calculated limits of detection were 13 nM, 32 nM, 50 nM and 90 nM for Pb2+, Cd2+, Zn2+ and Mn2+, respectively with a deposition time of 150 s for the first three metal ions and 60s for Mn2+.

Stripping voltammetry of heavy metals on a metal catalyst free carbon nanotube electrode

244th National Meeting (2012)

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