A facile green synthesis of silver nanoparticles using Piper betle biomass and its catalytic activity toward sensitive and selective nitrite detection

•One-pot synthesis of Ag nanoparticles is achieved by using Piper betle biomass.•Ag+/Ag0 active centers involved NO2− oxidation mechanism is detailed.•Ag nanoparticles exhibited a rapid response with a detection limit of 0.046μM.•The sensor displayed excellent selectivity and good stability in NO2−...

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Bibliographic Details
Published in:Journal of industrial and engineering chemistry (Seoul, Korea) 2016, 35(0), , pp.29-35
Main Authors: Ramachandran, K., Kalpana, D., Sathishkumar, Y., Lee, Yang Soo, Ravichandran, K., kumar, G. Gnana
Format: Article
Language:English
Subjects:
Biocompatible
Biomass
Crystalline
Image detection
Nanoparticles
Nanostructure
Nitrite sensors
Nitrites
Paving
Reduction
Sensitivity
Sensors
Silver
화학공학
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Summary:•One-pot synthesis of Ag nanoparticles is achieved by using Piper betle biomass.•Ag+/Ag0 active centers involved NO2− oxidation mechanism is detailed.•Ag nanoparticles exhibited a rapid response with a detection limit of 0.046μM.•The sensor displayed excellent selectivity and good stability in NO2− detection. A facile, one-pot and environmental benign method exploiting Piper betle biomass as a reducing and stabilizing agent was proposed for the preparation of silver (Ag) nanoparticles. The Ag nanoparticles prepared from dried Piper betle leaves extract exhibited unique spherical configuration and face-centered-cubic structure with preferred (111) orientation. The fabricated Ag/GCE sensor exhibited an exceptional electrocatalytic activity toward NO2− oxidation with a quick response time, high sensitivity and lower detection limit of 10s, 1642.27μAmM−1cm−2 and 0.046μM, respectively. Furthermore, the constructed sensor exhibited long-term stability and excellent anti-interference properties, paving new dimensions for the utilization of bio-mediated nanocatalysts in electrochemical sensors.
ISSN:1226-086X
1876-794X
DOI:10.1016/j.jiec.2015.10.033