Green synthesis of silver nanoparticles (SNPs)-modified electrode for electrochemical detection of nitrobenzene

Nitrobenzene (NB) is a highly toxic and hazardous compound that needs to be detected at the low level. The current work describes an eco-friendly synthesis of silver nanoparticles (SNPs) using a Eucalyptus extract as reducing and stabilizing agent and its use for electrochemical detection of NB. The...

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Bibliographic Details
Published in:Journal of the Iranian Chemical Society 2020-04, Vol.17 (4), p.893-900
Main Authors: Shivakumar, M., Dharmaprakash, M. S., Manjappa, S., Nagashree, K. L.
Format: Article
Language:English
Subjects:
Analytical Chemistry
Biochemistry
Chemical synthesis
Chemistry
Chemistry and Materials Science
Electrochemical analysis
Electrodes
Eucalyptus
Glassy carbon
Inorganic Chemistry
Low level
Nanoparticles
Nitrobenzene
Organic Chemistry
Original Paper
Physical Chemistry
Selectivity
Silver
Spectroscopy
Spectrum analysis
Stabilizers (agents)
Voltammetry
X ray powder diffraction
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Summary:Nitrobenzene (NB) is a highly toxic and hazardous compound that needs to be detected at the low level. The current work describes an eco-friendly synthesis of silver nanoparticles (SNPs) using a Eucalyptus extract as reducing and stabilizing agent and its use for electrochemical detection of NB. The synthesized SNPs were characterized by following techniques UV–visible spectroscopy, powder X-ray diffraction, FESEM, HRTEM and TEM, FTIR spectroscopy. Further electrochemical investigation of SNPs-modified glassy carbon electrode (SNPs/GCE) is carried out by cyclic voltammetric and differential pulse voltammetric techniques. The prepared NPs exhibit excellent electrochemical behaviour towards reduction of NB and show a linear response in the range 5–40 µM, sensitivity of 2.262 µA µM −1  cm −2 and limit of detection of 0.027 µM. SNPs/GCE shows good selectivity towards NB detection. Also, the system exhibits a considerable recovery towards NB detection in of water and waste samples.
ISSN:1735-207X
1735-2428
DOI:10.1007/s13738-019-01822-z