Electrochemical detection of 4,4',5,5'-tetranitro-1H,1'H-2,2'-biimidazole on boron-doped diamond/graphene nanowall electrodes

Anna Dettlaff , Paweł Jakóbczyk , Michał Sobaszek , Mateusz Ficek , Barlomiej Dec , Aneta Łuczkiewicz , Mateusz Szala , Jacek Wojtas , Tadeusz Ossowski , Robert Bogdanowicz

Abstract

We present a promising approach to the electroanalytical detection of a specific nitroaromatic explosive in landfill leachates (LLs) that originated from a municipal solid waste plant. The paper is focused but not limited to the sensing of 4,4',5,5'-tetranitro-1H,1'H-2,2'-biimidazole (TNBI) using differential pulse voltammetry and cyclic voltammetry. Highly electroactive nanocarbon was applied to determine low concentrations of the analyte in the complex interfering matrix as leachate samples. The mechanism of nitro- group reduction is attributed to the sensing effect, as revealed in the voltammograms of TNBI. The developed sensor model has two linear regions extending from 0.02 ppm to 1.4 ppm and from 2 ppm to 16 ppm resulting from adsorption and diffusion-controlled processes, respectively. The limit of detection was as low as 0.52 ppm (1.66 μM L-1) thanks to the electrochemical performance of the joint effect of the diamond/graphene composite nanowall surface.
Publication typeIn press (online first, early view)
Author Anna Dettlaff
Anna Dettlaff,,
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, Paweł Jakóbczyk
Paweł Jakóbczyk,,
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, Michał Sobaszek
Michał Sobaszek,,
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, Mateusz Ficek
Mateusz Ficek,,
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, Barlomiej Dec
Barlomiej Dec,,
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, Aneta Łuczkiewicz
Aneta Łuczkiewicz,,
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, Mateusz Szala
Mateusz Szala,,
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, Jacek Wojtas
Jacek Wojtas,,
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, Tadeusz Ossowski (FCh / DACh / LSCh)
Tadeusz Ossowski,,
- Laboratory of Supramolecular Chemistry
, Robert Bogdanowicz
Robert Bogdanowicz,,
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Journal seriesIEEE Sensors Journal, ISSN 1530-437X, e-ISSN 1558-1748, (N/A 100 pkt)
Issue year2020
Noonline first
Pages1-1
Publication size in sheets0.3
Keywords in Englishdifferential pulse voltammetry, nanocarbon electrodes, nitroaromatics, electrochemical sensor
ASJC Classification2208 Electrical and Electronic Engineering; 3105 Instrumentation
DOIDOI:10.1109/JSEN.2020.2973451
Languageen angielski
Score (nominal)100
Score sourcejournalList
ScoreMinisterial score = 100.0, 27-04-2020, ArticleFromJournal
Publication indicators Scopus SNIP (Source Normalised Impact per Paper): 2018 = 1.709; WoS Impact Factor: 2018 = 3.076 (2) - 2018=3.115 (5)
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