Abstract
A novel binary heterogeneous electrocatalyst, Co2SnO4, decorated on chemically exfoliated boron nitride sheets (CE-BN) with an exceptional capacity to detect electrochemical properties has been prepared by the simple hydrothermal method. The structural, surface morphology and electrochemical characteristics of Co2SnO4/CE-BN were characterized using a range of physicochemical and electrochemical techniques. Various voltammetric approaches were used to observe the analytical behaviour and applications of Co2SnO4/CE-BN/GCE for the determination of 2-nitroaniline (2-NA). The whole experiment is operated in the potential range from 0 to − 1.0 V vs Ag/AgCl (sat. KCl). The impact of operational factors on the peak current of 2-NA was investigated, including the pH, sample concentration, modifier amount and scan speed. With an estimated differential pulse voltammetry detection limit of 0.0371 µM and excellent sensitivity of 1,35 µA µM−1 cm−2, the produced sensor, Co2SnO4/CE-BN/GCE, revealed high electrocatalytic activity (DPV). The system is more practical and sustainable due to its repeatability, stability and reproducibility with respect to the results achieved for detection of 2-NA. The synthesized Co2SnO4/CE-BN-modified sensor may thus be a likely choice for the detection of 2-NA in actual water sample analysis.
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The authors wish to thank the VIT management for characterization support and infrastructure.
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VIT seed grant (SG20210159) for financial support. VIT provided the fellowship to CB.
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Chellapandi Bhuvaneswari: methodology, writing—original draft preparation.
Karuppaiya Palpandi: methodology, electrochemical sensing studies.
Natarajan Raman: reviewing and editing
Sundaram Ganesh Babu: conceptualization, methodology, writing — reviewing and editing.
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Bhuvaneswari, C., Palpandi, K., Raman, N. et al. Sustainable architecting of Co2SnO4/CE-BN-based electrochemical platform for highly selective and ultrasensitive detection of 2-nitroaniline in life samples. Microchim Acta 189, 390 (2022). https://doi.org/10.1007/s00604-022-05484-2
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DOI: https://doi.org/10.1007/s00604-022-05484-2