Fabrication of a new calix[4]arene-functionalized Mn3O4 nanoparticle-based modified glassy carbon electrode as a fast responding sensor towards Pb2+ and Cd2+ ions
| Autor: | Ashoka Siddaramanna, Prashanth Shivappa Adarakatti, Pandurangappa Malingappa |
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| Rok vydání: | 2019 |
| Předmět: |
Detection limit
Materials science General Chemical Engineering Metal ions in aqueous solution 010401 analytical chemistry Inorganic chemistry General Engineering Ionic bonding Nanoparticle 02 engineering and technology 021001 nanoscience & nanotechnology Electrochemistry 01 natural sciences 0104 chemical sciences Analytical Chemistry Electrochemical gas sensor Fourier transform infrared spectroscopy 0210 nano-technology BET theory |
| Zdroj: | Analytical Methods. 11:813-820 |
| ISSN: | 1759-9679 1759-9660 |
| DOI: | 10.1039/c8ay02648c |
| Popis: | Macromolecule-functionalized metal oxide nanoparticles have received significant research interest owing to the combined advantages of functional groups and high surface to volume ratio, which make them good materials for an electrochemical sensor towards the quantification of toxic heavy metal ions. In this regard, a simple strategy has been proposed to functionalize Mn3O4 nanoparticles (Mn3O4 NPs) with calix[4]arene macromolecules. The synthesized calix[4]arene-functionalized Mn3O4 NPs have been characterized using Fourier transform infrared spectroscopy (FTIR) and a BET surface area analyzer. The prepared calix[4]arene-functionalized Mn3O4 NPs were used as a novel electrochemical sensing platform for the simultaneous measurement of Pb2+ and Cd2+ ions at the nanomolar level. The developed sensor showed wide linearity from 100 to 1000 ppb with the limit of detection of 7 and 9 ppb for Pb2+ and Cd2+ ions, respectively. The proposed interface showed least interference from most of the common ionic species present in the real samples. |
| Databáze: | OpenAIRE |
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