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Green preparation of reduced graphene oxide by Bougainvillea glabra flower extract and sensing application

  • 22-07-2020
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Abstract

In this paper, we report the application of Bougainvillea glabra flower extract as a green-reducing agent for the reduction of chemically prepared graphene oxide (GO). The removal of oxygen-containing functional groups after reduction of GO was due to the presence of phenolic compounds in the flower extract of Bougainvillea glabra. Towards the sensing of Pb2+, a simple drop-casting technique was adopted to fabricate the sensing element by modifying the surface of screen-printed carbon electrode (SPCE) with rGO-nafion nanocomposite. Differential pulse voltammetry was employed as an electroanalytical technique to study the sensing capability of the proposed electrode for different concentrations of Pb2+. The fabricated SPCE exhibited a low limit of detection of 0.05 nM toward Pb2+ with an improved sensitivity of 25.273 µA nM−1 over a linear range of 0.05–8.67 nM.

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Title
Green preparation of reduced graphene oxide by Bougainvillea glabra flower extract and sensing application
Authors
G. Balu Mahendran
S. Jothi Ramalingam
John Bosco Balaguru Rayappan
Srinivasan Kesavan
T. Periathambi
Noel Nesakumar
Publication date
22-07-2020
Publisher
Springer US
Published in
Journal of Materials Science: Materials in Electronics / Issue 17/2020
Print ISSN: 0957-4522
Electronic ISSN: 1573-482X
DOI
https://doi.org/10.1007/s10854-020-03994-4
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