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Electrochemical detection of natural organic matter (humic acid) and splitting of hydrogen peroxide on a micropore 3D catalytic polysulfone–copper oxide nanocomposite surface

Published online by Cambridge University Press:  12 August 2020

Olayemi J. Fakayode Open the ORCID record for Olayemi J. Fakayode [Opens in a new window]  and
Thabo T.I. Nkambule
Olayemi J. Fakayode*
Affiliation:
Institute of Nanotechnology and Water Sustainability Research Unit (iNanoWS), College of Science, Engineering and Technology (CSET), University of South Africa (UNISA), Florida Campus, 60 Christian de wet street, P.O. Box 2820, Roodepoort, Florida, Gauteng, South Africa
Thabo T.I. Nkambule
Affiliation:
Institute of Nanotechnology and Water Sustainability Research Unit (iNanoWS), College of Science, Engineering and Technology (CSET), University of South Africa (UNISA), Florida Campus, 60 Christian de wet street, P.O. Box 2820, Roodepoort, Florida, Gauteng, South Africa
*
Address all correspondence to Olayemi J. Fakayode at [email protected], [email protected]
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Abstract

The development of new metalloplastic material from the combination of an alkaline-fused dehydrated glucose–copper (II) chloride, carbon soot, and polysulfone and the evaluation of its potential for the electrochemical detection of a pro-carcinogenic humic acid in water is reported. Excellent detection limit greater than 1 pico-part-per-million (order of 10–13 mg/L) was achieved, a value that proved to be first-of-its-kind till date. Transfer coefficients between 0.8 and 1.0 were realized. The new material showed some potential for splitting hydrogen peroxide to oxygen and thus may be explored for energy application in addition to its use as a water quality monitoring probe.

Type
Research Letters
Information
MRS Communications , Volume 10 , Issue 3 , September 2020 , pp. 519 - 527
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Copyright
Copyright © Materials Research Society, 2020

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