Amalgamation based optical and colorimetric sensing of mercury (II) ions with silver@graphene oxide nanocomposite materials
The article describes a facile method for the preparation of a conjugate composed of silver nanoparticles and graphene oxide (Ag@GO) via chemical reduction of silver precursors in the presence of graphene oxide (GO) while sonicating the solution. The Ag@GO was characterized by X-ray photoelectron sp...
| Main Authors: | , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Springer Verlag
2016
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| Online Access: | http://psasir.upm.edu.my/id/eprint/55005/ http://psasir.upm.edu.my/id/eprint/55005/1/Amalgamation%20based%20optical%20and%20colorimetric%20sensing%20of%20mercury%20%28II%29%20ions%20with%20.pdf |
| _version_ | 1848852690233196544 |
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| author | Kamali, Khosro Zangeneh Pandikumar, Alagarsamy Jayabal, Subramaniam Ramaraj, Ramasamy Hong, Ngee Lim Boon, Hoong Ong Chia, Sheng Daniel Bien Yeh, Yee Kee Nay, Ming Huang |
| author_facet | Kamali, Khosro Zangeneh Pandikumar, Alagarsamy Jayabal, Subramaniam Ramaraj, Ramasamy Hong, Ngee Lim Boon, Hoong Ong Chia, Sheng Daniel Bien Yeh, Yee Kee Nay, Ming Huang |
| author_sort | Kamali, Khosro Zangeneh |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | The article describes a facile method for the preparation of a conjugate composed of silver nanoparticles and graphene oxide (Ag@GO) via chemical reduction of silver precursors in the presence of graphene oxide (GO) while sonicating the solution. The Ag@GO was characterized by X-ray photoelectron spectroscopy, X-ray powder diffraction, and energy-dispersive X-ray spectroscopy. The nanocomposite undergoes a color change from yellow to colorless in presence of Hg(II), and this effect is based on the disappearance of the localized surface plasmon resonance absorption of the AgNPs due to the formation of silver-mercury amalgam. The presence of GO, on the other hand, prevents the agglomeration of the AgNPs and enhances the stability of the nanocomposite material in solution. Hence, the probe represents a viable optical probe for the determination of mercury(II) ions in that it can be used to visually detect Hg(II) concentrations as low as 100 μM. The instrumental LOD is 338 nM. |
| first_indexed | 2025-11-15T10:42:05Z |
| format | Article |
| id | upm-55005 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T10:42:05Z |
| publishDate | 2016 |
| publisher | Springer Verlag |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-550052018-07-12T10:31:07Z http://psasir.upm.edu.my/id/eprint/55005/ Amalgamation based optical and colorimetric sensing of mercury (II) ions with silver@graphene oxide nanocomposite materials Kamali, Khosro Zangeneh Pandikumar, Alagarsamy Jayabal, Subramaniam Ramaraj, Ramasamy Hong, Ngee Lim Boon, Hoong Ong Chia, Sheng Daniel Bien Yeh, Yee Kee Nay, Ming Huang The article describes a facile method for the preparation of a conjugate composed of silver nanoparticles and graphene oxide (Ag@GO) via chemical reduction of silver precursors in the presence of graphene oxide (GO) while sonicating the solution. The Ag@GO was characterized by X-ray photoelectron spectroscopy, X-ray powder diffraction, and energy-dispersive X-ray spectroscopy. The nanocomposite undergoes a color change from yellow to colorless in presence of Hg(II), and this effect is based on the disappearance of the localized surface plasmon resonance absorption of the AgNPs due to the formation of silver-mercury amalgam. The presence of GO, on the other hand, prevents the agglomeration of the AgNPs and enhances the stability of the nanocomposite material in solution. Hence, the probe represents a viable optical probe for the determination of mercury(II) ions in that it can be used to visually detect Hg(II) concentrations as low as 100 μM. The instrumental LOD is 338 nM. Springer Verlag 2016-01 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/55005/1/Amalgamation%20based%20optical%20and%20colorimetric%20sensing%20of%20mercury%20%28II%29%20ions%20with%20.pdf Kamali, Khosro Zangeneh and Pandikumar, Alagarsamy and Jayabal, Subramaniam and Ramaraj, Ramasamy and Hong, Ngee Lim and Boon, Hoong Ong and Chia, Sheng Daniel Bien and Yeh, Yee Kee and Nay, Ming Huang (2016) Amalgamation based optical and colorimetric sensing of mercury (II) ions with silver@graphene oxide nanocomposite materials. Microchimica Acta, 183 (10). pp. 369-377. ISSN 0026-3672; ESSN:1436-5073 10.1007/s00604-015-1658-6 |
| spellingShingle | Kamali, Khosro Zangeneh Pandikumar, Alagarsamy Jayabal, Subramaniam Ramaraj, Ramasamy Hong, Ngee Lim Boon, Hoong Ong Chia, Sheng Daniel Bien Yeh, Yee Kee Nay, Ming Huang Amalgamation based optical and colorimetric sensing of mercury (II) ions with silver@graphene oxide nanocomposite materials |
| title | Amalgamation based optical and colorimetric sensing of mercury (II) ions with silver@graphene oxide nanocomposite materials |
| title_full | Amalgamation based optical and colorimetric sensing of mercury (II) ions with silver@graphene oxide nanocomposite materials |
| title_fullStr | Amalgamation based optical and colorimetric sensing of mercury (II) ions with silver@graphene oxide nanocomposite materials |
| title_full_unstemmed | Amalgamation based optical and colorimetric sensing of mercury (II) ions with silver@graphene oxide nanocomposite materials |
| title_short | Amalgamation based optical and colorimetric sensing of mercury (II) ions with silver@graphene oxide nanocomposite materials |
| title_sort | amalgamation based optical and colorimetric sensing of mercury (ii) ions with silver@graphene oxide nanocomposite materials |
| url | http://psasir.upm.edu.my/id/eprint/55005/ http://psasir.upm.edu.my/id/eprint/55005/ http://psasir.upm.edu.my/id/eprint/55005/1/Amalgamation%20based%20optical%20and%20colorimetric%20sensing%20of%20mercury%20%28II%29%20ions%20with%20.pdf |