Rapid redox sensing of p-nitrotoluene in real water samples using silver nanoparticles

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F20%3A73601894" target="_blank" >RIV/61989592:15310/20:73601894 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S1387700320307474" target="_blank" >https://www.sciencedirect.com/science/article/pii/S1387700320307474</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.inoche.2020.108157" target="_blank" >10.1016/j.inoche.2020.108157</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Rapid redox sensing of p-nitrotoluene in real water samples using silver nanoparticles

Popis výsledku v původním jazyce

In the present work, a robust silver nanoparticle-based electrochemical sensor for the sensing of p-nitrotoluene (p-NT) has been described. The silver nanoparticles were synthesized using sonochemical technique and their purity, morphology and stability were established by transmission electron microscopy (TEM), scanning electron microscopy (SEM), energy-dispersive X-ray, X-ray powder diffraction and thermogravimetric analysis; SEM and EDX analysis revealed an interesting structure of AgNPs containing p-NT, different from the usual AgNPs. The synthesized AgNPs were embedded over Au electrode for electrochemical-based efficient sensing of p-nitrotoluene (p-NT) in real water and laboratory sample. The mechanism of the 4-NT reduction reaction was examined using cyclic voltammetry (CV) while the electrochemical sensing of 4-NT was carried out using chronoamperometry; measurement of reduction peak current was observed with a regression coefficient of 0.987 which increased further upon enhancing the concentration of p-NT. The sensor also exhibited a linear response for the reduction of 4-nitrotoluene in the range of 0.01-0.10 mu M with high sensitivity of 6.36 mu A/mu M cm(2), and a very low limit of detection 0.092 mu M. Overall, the results showed that the proposed AgNPs/Au electrode presents an efficient option for detecting the lowest concentration of p-NT wherein the sensor displays robust sensing platform with good reproducibility, stability, and selectivity toward the analytes in real as well as laboratory sample analysis.

Název v anglickém jazyce

Rapid redox sensing of p-nitrotoluene in real water samples using silver nanoparticles

Popis výsledku anglicky

In the present work, a robust silver nanoparticle-based electrochemical sensor for the sensing of p-nitrotoluene (p-NT) has been described. The silver nanoparticles were synthesized using sonochemical technique and their purity, morphology and stability were established by transmission electron microscopy (TEM), scanning electron microscopy (SEM), energy-dispersive X-ray, X-ray powder diffraction and thermogravimetric analysis; SEM and EDX analysis revealed an interesting structure of AgNPs containing p-NT, different from the usual AgNPs. The synthesized AgNPs were embedded over Au electrode for electrochemical-based efficient sensing of p-nitrotoluene (p-NT) in real water and laboratory sample. The mechanism of the 4-NT reduction reaction was examined using cyclic voltammetry (CV) while the electrochemical sensing of 4-NT was carried out using chronoamperometry; measurement of reduction peak current was observed with a regression coefficient of 0.987 which increased further upon enhancing the concentration of p-NT. The sensor also exhibited a linear response for the reduction of 4-nitrotoluene in the range of 0.01-0.10 mu M with high sensitivity of 6.36 mu A/mu M cm(2), and a very low limit of detection 0.092 mu M. Overall, the results showed that the proposed AgNPs/Au electrode presents an efficient option for detecting the lowest concentration of p-NT wherein the sensor displays robust sensing platform with good reproducibility, stability, and selectivity toward the analytes in real as well as laboratory sample analysis.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10402 - Inorganic and nuclear chemistry

Projekt

—

Návaznosti

N - Vyzkumna aktivita podporovana z neverejnych zdroju

Rok uplatnění

2020

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

INORGANIC CHEMISTRY COMMUNICATIONS

ISSN

1387-7003

e-ISSN

—

Svazek periodika

120

Číslo periodika v rámci svazku

OCT

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

8

Strana od-do

"108157-1"-"108157-8"

Kód UT WoS článku

000573602400008

EID výsledku v databázi Scopus

2-s2.0-85088989745