One-pot synthesis of Mn3O4/graphitic carbon nanoparticles for simultaneous nanomolar detection of Pb(II), Cd(II) and Hg(II)
| Autor: | Craig E. Banks, Ashoka Siddaramanna, Vijaya Kumar Gangaiah, Prashanth Shivappa Adarakatti |
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| Rok vydání: | 2017 |
| Předmět: |
Detection limit
Materials science Aqueous solution Mechanical Engineering Nanoparticle Infrared spectroscopy 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology Electrochemistry 01 natural sciences 0104 chemical sciences Anodic stripping voltammetry Linear range Mechanics of Materials Transmission electron microscopy General Materials Science 0210 nano-technology Nuclear chemistry |
| Zdroj: | Journal of Materials Science. 53:4961-4973 |
| ISSN: | 1573-4803 0022-2461 |
| DOI: | 10.1007/s10853-017-1896-6 |
| Popis: | In this paper, a facile one-step sucrose–nitrate decomposition method has been proposed to synthesis Mn3O4 nanoparticles (Mns)/graphitic carbon. The prepared material has been characterized by X-ray diffraction, Fourier transform infrared spectrometer, surface area analysis and transmission electron microscopy. The prepared Mns/graphitic carbon is drop-casted on glassy carbon electrode to allow the fabrication of electrochemical sensors for the simultaneous detection of Pb(II), Cd(II) and Hg(II) at nanomolar (nM) levels in aqueous solutions via differential pulse anodic stripping voltammetry. The proposed Mns/graphitic carbon sensors exhibit a wide linear range from 20 to 680 nM towards the simultaneous sensing of Cd(II), Pb(II) and Hg(II), and the corresponding limits of detection were found to be 0.48 × 10−11, 9.66 × 10−11 and 0.51 × 10−11 M, respectively. The practical application of the proposed sensor is evaluated within a real battery, industrial and chrome plating effluents. |
| Databáze: | OpenAIRE |
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