Fray Symposium - Cyclam-modified Electrodes For Lead Detection In Recycling System
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2011-Sustainable Industrial Processing Summit
SIPS2011 Volume 4: Materials Recycling, Silicon Photovoltaic Cells, Boron & Borates

Editors:Florian K
Publisher:Flogen Star OUTREACH
Publication Year:2012
Pages:754 pages
ISBN:978-0-9879917-3-7
ISSN:2291-1227 (Metals and Materials Processing in a Clean Environment Series)

    Cyclam-modified Electrodes For Lead Detection In Recycling System

    S Subramanian1; S. Vimalnath2; S Sampath3; Ramachandran Kumar4; Carsten Schwandt4; Yingjun Liu5;
    1INDIAN INSTITUTE OF SCIENCE, Bangalore, India; 2DEPARTMENT OF MATERIALS ENGINEERING, INDIAN INSTIT, Bangalore, India; 3DEPARTMENT OF INORGANIC AND PHYSICAL CHEMISTRY, IN, Bangalore, India; 4UNIVERSITY OF CAMBRIDGE, Cambridge, United Kingdom; 5DEPARTMENT OF MATERIALS SCIENCE AND METALLURGY, Cambridge, United Kingdom;
    Type of Paper: Keynote
    Id Paper: 509
    Topic: 12

    Abstract:

    An electrochemical sensor for lead detection within a lead recycling system with concentrations in the range from 50-1000 uM is reported. The sensor uses carbon paste electrodes modified with cyclam-functionalized exfoliated graphene oxide (EGO-cyclam-CPE). The interaction of Pb(II) ions with the cyclam ligands on the surface of the electrode in aqueous media is studied using cyclic voltammetry. The presence of cyclam ligands enhances the redox activity of Pb(II) ions in a 0.1 M acetate buffer. In order to determine the electrochemical behaviour of EGO-cyclam-CPE, parameters such as voltammetric scan rate, pH and type of buffer are also optimized. The Pb(II) detection limit is found to be 18 uM.

    Keywords:

    Cyclam, Graphene Oxide, Carbon Paste, Lead, Sensor

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    Cite this article as:

    Subramanian S, Vimalnath S, Sampath S, Kumar R, Schwandt C, Liu Y. Cyclam-modified Electrodes For Lead Detection In Recycling System. In: Florian K, editors. Sustainable Industrial Processing Summit SIPS2011 Volume 4: Materials Recycling, Silicon Photovoltaic Cells, Boron & Borates. Volume 4. Montreal(Canada): FLOGEN Star Outreach;2012. p..