Graphene/Gold Nanocomposites-Based Thin Films as an Enhanced Sensing Platform for Voltammetric Detection of Cr(VI) Ions
A highly sensitive and selective Cr(VI) sensor with graphene-based nanocomposites film as an enhanced sensing platform is reported. The detection of chromium species is a challenging task because of the different possible oxidation states in which the element can occur. The sensing film was develop...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2014-01-01
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| Series: | Journal of Nanotechnology |
| Online Access: | http://dx.doi.org/10.1155/2014/304526 |
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| author | Chella Santhosh Murugan Saranya Rajendran Ramachandran Sathiyanathan Felix Venugopal Velmurugan Andrews Nirmala Grace |
| author_facet | Chella Santhosh Murugan Saranya Rajendran Ramachandran Sathiyanathan Felix Venugopal Velmurugan Andrews Nirmala Grace |
| author_sort | Chella Santhosh |
| collection | DOAJ |
| description | A highly sensitive and selective Cr(VI) sensor with graphene-based nanocomposites film as an enhanced sensing platform is reported. The detection of chromium species is a challenging task because of the different possible oxidation states in which the element can occur. The sensing film was developed by homogenously distributing Au nanoparticles (AuNPs) onto the two-dimensional (2D) graphene nanosheet matrix by electrochemical method. Such nanostructured composite film platforms combine the advantages of AuNPs and graphene nanosheets because of the synergistic effect between them. This effect greatly facilitates the electron-transfer processes and the sensing behavior for Cr(VI) detection, leading to a remarkably improved sensitivity and selectivity. The interference from other heavy metal ions is studied in detail. Such sensing elements are very promising for practical environmental monitoring applications. |
| format | Article |
| id | doaj-art-e32183f995c14f2f87af595c67577f94 |
| institution | Kabale University |
| issn | 1687-9503 1687-9511 |
| language | English |
| publishDate | 2014-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Nanotechnology |
| spelling | doaj-art-e32183f995c14f2f87af595c67577f942025-02-03T05:44:00ZengWileyJournal of Nanotechnology1687-95031687-95112014-01-01201410.1155/2014/304526304526Graphene/Gold Nanocomposites-Based Thin Films as an Enhanced Sensing Platform for Voltammetric Detection of Cr(VI) IonsChella Santhosh0Murugan Saranya1Rajendran Ramachandran2Sathiyanathan Felix3Venugopal Velmurugan4Andrews Nirmala Grace5Centre for Nanotechnology Research, VIT University, Vellore 632 014, IndiaCentre for Nanotechnology Research, VIT University, Vellore 632 014, IndiaCentre for Nanotechnology Research, VIT University, Vellore 632 014, IndiaCentre for Nanotechnology Research, VIT University, Vellore 632 014, IndiaCentre for Nanotechnology Research, VIT University, Vellore 632 014, IndiaCentre for Nanotechnology Research, VIT University, Vellore 632 014, IndiaA highly sensitive and selective Cr(VI) sensor with graphene-based nanocomposites film as an enhanced sensing platform is reported. The detection of chromium species is a challenging task because of the different possible oxidation states in which the element can occur. The sensing film was developed by homogenously distributing Au nanoparticles (AuNPs) onto the two-dimensional (2D) graphene nanosheet matrix by electrochemical method. Such nanostructured composite film platforms combine the advantages of AuNPs and graphene nanosheets because of the synergistic effect between them. This effect greatly facilitates the electron-transfer processes and the sensing behavior for Cr(VI) detection, leading to a remarkably improved sensitivity and selectivity. The interference from other heavy metal ions is studied in detail. Such sensing elements are very promising for practical environmental monitoring applications.http://dx.doi.org/10.1155/2014/304526 |
| spellingShingle | Chella Santhosh Murugan Saranya Rajendran Ramachandran Sathiyanathan Felix Venugopal Velmurugan Andrews Nirmala Grace Graphene/Gold Nanocomposites-Based Thin Films as an Enhanced Sensing Platform for Voltammetric Detection of Cr(VI) Ions Journal of Nanotechnology |
| title | Graphene/Gold Nanocomposites-Based Thin Films as an Enhanced Sensing Platform for Voltammetric Detection of Cr(VI) Ions |
| title_full | Graphene/Gold Nanocomposites-Based Thin Films as an Enhanced Sensing Platform for Voltammetric Detection of Cr(VI) Ions |
| title_fullStr | Graphene/Gold Nanocomposites-Based Thin Films as an Enhanced Sensing Platform for Voltammetric Detection of Cr(VI) Ions |
| title_full_unstemmed | Graphene/Gold Nanocomposites-Based Thin Films as an Enhanced Sensing Platform for Voltammetric Detection of Cr(VI) Ions |
| title_short | Graphene/Gold Nanocomposites-Based Thin Films as an Enhanced Sensing Platform for Voltammetric Detection of Cr(VI) Ions |
| title_sort | graphene gold nanocomposites based thin films as an enhanced sensing platform for voltammetric detection of cr vi ions |
| url | http://dx.doi.org/10.1155/2014/304526 |
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