TY - JOUR
T1 - Rational design of Nd2O3 decorated functionalized carbon nanofiber composite for selective electrochemical detection of carbendazim fungicides in vegetables, water, and soil samples
AU - Palanisamy, Selvakumar
AU - Alagumalai, Krishnapandi
AU - Chiesa, Matteo
AU - Kim, Seong Cheol
N1 - Funding Information:
In conclusion, a straightforward methodology has been used to synthesize the Nd2O3/f-CNF composite, and its modified electrode was used for the first time for the sensitive and low potential detection of CBZ. Microscopic examinations confirmed the presence of Nd2O3 nanoparticles on the surface of f-CNF. Also, the other physicochemical studies supported the successful formation of the Nd2O3/f-CNF composite. In electrochemical studies, it was found that the Nd2O3/f-CNF composite electrode had a greater surface area and more extraordinary electron transfer ability than Nd2O3 and f-CNF modified electrodes. The electroanalytical studies determined that the Nd2O3/f-CNF composite-modified electrode was highly sensitive toward CBZ detection, detecting CBZ at low levels of 4.3 nM with higher sensitivity (0.142 μAμM−1) and providing a more comprehensive linear response range (up to 243 μM). The fabricated composite modified electrode showed excellent selectivity towards CBZ despite the influence of various interfering compounds, including similar insecticides. This excellent recovery of CBZ in water, vegetable, and soil samples confirmed the excellent practicality of the Nd2O3 and f-CNF-modified electrodes. The synthesized Nd2O3/f-CNF composite could be applied to environmental remediation in investigated water, vegetable, and soil samples.This research was supported by the Basic Science Research Program through the National Research Foundation of Korea (NRF), funded by the Ministry of Education (2020R1I1A3052258). In addition, the work was supported by the Technology Development Program (S30605) funded by the Ministry of SMEs and Startups (MSS, Republic of Korea) in 2021. The authors also would like to thank Khalifa University, United Arab Emirates for supporting this study.
Funding Information:
This research was supported by the Basic Science Research Program through the National Research Foundation of Korea (NRF), funded by the Ministry of Education ( 2020R1I1A3052258 ). In addition, the work was supported by the Technology Development Program (S30605) funded by the Ministry of SMEs and Startups (MSS, Republic of Korea) in 2021. The authors also would like to thank Khalifa University, United Arab Emirates for supporting this study.
Publisher Copyright:
© 2022 Elsevier Inc.
PY - 2023/2/15
Y1 - 2023/2/15
N2 - Abuse of carbendazim (CBZ) leaves excessive pesticide residues on agricultural products, which endangers human health because of the residues' high concentrations. Hence, a composite consisting of functionalized carbon nanofibers (f-CNF) with neodymium oxide (Nd2O3) was fabricated to monitor CBZ at trace levels. The Nd2O3/f-CNF composite-modified electrode displays higher electro-oxidation ability towards CBZ than Nd2O3 and f-CNF-modified electrodes. The combined unique properties of Nd2O3 and f-CNF result in a substantial specific surface area, superior structural stability, and excellent electrocatalytic activity of the composite yielding enhanced sensitivity to detecting CBZ with a detection limit of 4.3 nM. Also, the fabricated sensor electrode can detect CBZ in the linear concentration range of up to 243.0 μM with high selectivity, appropriate reproducibility, and stability. A demonstration of the sensing capability of CBZ in vegetables, water, and soil samples was reported paving the way for its use in practical applications.
AB - Abuse of carbendazim (CBZ) leaves excessive pesticide residues on agricultural products, which endangers human health because of the residues' high concentrations. Hence, a composite consisting of functionalized carbon nanofibers (f-CNF) with neodymium oxide (Nd2O3) was fabricated to monitor CBZ at trace levels. The Nd2O3/f-CNF composite-modified electrode displays higher electro-oxidation ability towards CBZ than Nd2O3 and f-CNF-modified electrodes. The combined unique properties of Nd2O3 and f-CNF result in a substantial specific surface area, superior structural stability, and excellent electrocatalytic activity of the composite yielding enhanced sensitivity to detecting CBZ with a detection limit of 4.3 nM. Also, the fabricated sensor electrode can detect CBZ in the linear concentration range of up to 243.0 μM with high selectivity, appropriate reproducibility, and stability. A demonstration of the sensing capability of CBZ in vegetables, water, and soil samples was reported paving the way for its use in practical applications.
KW - Carbendazim
KW - Electroanalysis
KW - Functionalized carbon nanofibers composite
KW - Fungicides detecting sensor
KW - NdO
UR - https://www.scopus.com/pages/publications/85144920496
U2 - 10.1016/j.envres.2022.115140
DO - 10.1016/j.envres.2022.115140
M3 - Article
C2 - 36565846
AN - SCOPUS:85144920496
SN - 0013-9351
VL - 219
JO - Environmental Research
JF - Environmental Research
M1 - 115140
ER -
