L-Cysteine functionalized coral-like Ag doped MnO2 nanostructures for the real-time electrochemical detection of lead and cadmium ions

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61988987%3A17310%2F23%3AA2402LEC" target="_blank" >RIV/61988987:17310/23:A2402LEC - isvavai.cz</a>

Result on the web

<a href="https://www.sciencedirect.com/science/article/pii/S0254058423006995?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0254058423006995?via%3Dihub</a>

DOI - Digital Object Identifier

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Result language

angličtina

Original language name

L-Cysteine functionalized coral-like Ag doped MnO2 nanostructures for the real-time electrochemical detection of lead and cadmium ions

Original language description

In this report, L-Cysteine functionalized Ag@MnO2 nanocomposite was prepared for selective, rapid, and instantaneous electrochemical sensing of heavy metal ions (HMIs). Hydrothermal method was employed to synthesize L-Cysteine functionalized Ag@MnO2 nanocomposites. The composition and morphology of L-Cys/ Ag@MnO2 were characterized by advanced techniques such as XRD, FTIR, UV-Vis and FESEM analysis. XRD spectra confirmed the synthesis of tetragonal L-Cys/Ag@MnO2, while FESEM confirmed the formation of coral like nanostructures. Coral like L-Cys/Ag@MnO2 with sufficient open pores provided high surface area and large number of active sites for sensing of HMIs. The electrochemical parameters were optimized i.e., pH effect, deposition potential, deposition time, and impact of interfering species to enhance HMIs detection. Under optimized conditions, the designed sensor exhibited high sensitivity towards the solution of both Cd+2 and Pb+2 ions over a wide range from 0.1 & mu;M to 0.005 & mu;M of Cd+2 and Pb+2, respectively with LOD = 0.052 nM for Pb+2 and 0.065 nM for Cd+2. The developed sensor's practical applicability was also tested in tap water. Due to the high conductivity, synergistic effect, and high electron transfer kinetics of the prepared material, as designed sensor can be utilized for sensing other toxic metal ions in real samples.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10400 - Chemical sciences

Project

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Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2023

Confidentiality

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

Name of the periodical

MATER CHEM PHYS

ISSN

0254-0584

e-ISSN

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Volume of the periodical

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Issue of the periodical within the volume

127991

Country of publishing house

CH - SWITZERLAND

Number of pages

9

Pages from-to

1-9

UT code for WoS article

001013532000001

EID of the result in the Scopus database

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