One-pot green synthesis of highly reduced graphene oxide decorated with silver nanoparticles
A one-pot green sonochemical process assisted by ascorbic acid as the reducing agent to produce highly reduced graphene oxide (rGO) decorated with silver nanoparticles (AgNPs) is demonstrated. A complete removal of oxygen-containing group in the GO sheets was confirmed by no observation of the peak...
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| Format: | Article |
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Penerbit Universiti Kebangsaan Malaysia
2017
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| _version_ | 1796862396456763392 |
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| author | Aziz, N. S. A. Azmi, M. K. N. Hashim, A. M. |
| author_facet | Aziz, N. S. A. Azmi, M. K. N. Hashim, A. M. |
| author_sort | Aziz, N. S. A. |
| collection | ePrints |
| description | A one-pot green sonochemical process assisted by ascorbic acid as the reducing agent to produce highly reduced graphene oxide (rGO) decorated with silver nanoparticles (AgNPs) is demonstrated. A complete removal of oxygen-containing group in the GO sheets was confirmed by no observation of the peak corresponds to C-O, C=O and -OH bond. The unexpected decrease of peak intensity corresponds to sp2 hybridized C=C group is explained by a so-called bond polarity effect. The peak observed at ~400 nm seems to show the presence of AgNPs and the red shifting of C=C peak to ~270 nm after the introduction of ascorbic acid indicates the formation of highly reduced GO. The increase of AgNPs size and the crumpled silk-like morphology after the introduction of ascorbic acid also indicate the aggressive reduction of both AgNPs and GO. The increase of ID/IG ratio after the introduction of ascorbic acid seems to indicate the increase of the number of small sp2 domains, the presence of unrepaired defects and the restoration of the sp2 network. This work provides the promising green sonochemical approach by utilizing non-Toxic and environmental-friendly reducing agent to produce highly reduced GO decorated with AgNPs for various applications. |
| first_indexed | 2024-03-05T20:11:01Z |
| format | Article |
| id | utm.eprints-75745 |
| institution | Universiti Teknologi Malaysia - ePrints |
| last_indexed | 2024-03-05T20:11:01Z |
| publishDate | 2017 |
| publisher | Penerbit Universiti Kebangsaan Malaysia |
| record_format | dspace |
| spelling | utm.eprints-757452018-04-30T13:14:03Z http://eprints.utm.my/75745/ One-pot green synthesis of highly reduced graphene oxide decorated with silver nanoparticles Aziz, N. S. A. Azmi, M. K. N. Hashim, A. M. T Technology (General) A one-pot green sonochemical process assisted by ascorbic acid as the reducing agent to produce highly reduced graphene oxide (rGO) decorated with silver nanoparticles (AgNPs) is demonstrated. A complete removal of oxygen-containing group in the GO sheets was confirmed by no observation of the peak corresponds to C-O, C=O and -OH bond. The unexpected decrease of peak intensity corresponds to sp2 hybridized C=C group is explained by a so-called bond polarity effect. The peak observed at ~400 nm seems to show the presence of AgNPs and the red shifting of C=C peak to ~270 nm after the introduction of ascorbic acid indicates the formation of highly reduced GO. The increase of AgNPs size and the crumpled silk-like morphology after the introduction of ascorbic acid also indicate the aggressive reduction of both AgNPs and GO. The increase of ID/IG ratio after the introduction of ascorbic acid seems to indicate the increase of the number of small sp2 domains, the presence of unrepaired defects and the restoration of the sp2 network. This work provides the promising green sonochemical approach by utilizing non-Toxic and environmental-friendly reducing agent to produce highly reduced GO decorated with AgNPs for various applications. Penerbit Universiti Kebangsaan Malaysia 2017 Article PeerReviewed Aziz, N. S. A. and Azmi, M. K. N. and Hashim, A. M. (2017) One-pot green synthesis of highly reduced graphene oxide decorated with silver nanoparticles. Sains Malaysiana, 46 (7). pp. 1083-1088. ISSN 0126-6039 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85029899576&doi=10.17576%2fjsm-2017-4607-10&partnerID=40&md5=22b6f15ec1d4ca0f39f24ff934ba3abd |
| spellingShingle | T Technology (General) Aziz, N. S. A. Azmi, M. K. N. Hashim, A. M. One-pot green synthesis of highly reduced graphene oxide decorated with silver nanoparticles |
| title | One-pot green synthesis of highly reduced graphene oxide decorated with silver nanoparticles |
| title_full | One-pot green synthesis of highly reduced graphene oxide decorated with silver nanoparticles |
| title_fullStr | One-pot green synthesis of highly reduced graphene oxide decorated with silver nanoparticles |
| title_full_unstemmed | One-pot green synthesis of highly reduced graphene oxide decorated with silver nanoparticles |
| title_short | One-pot green synthesis of highly reduced graphene oxide decorated with silver nanoparticles |
| title_sort | one pot green synthesis of highly reduced graphene oxide decorated with silver nanoparticles |
| topic | T Technology (General) |
| work_keys_str_mv | AT aziznsa onepotgreensynthesisofhighlyreducedgrapheneoxidedecoratedwithsilvernanoparticles AT azmimkn onepotgreensynthesisofhighlyreducedgrapheneoxidedecoratedwithsilvernanoparticles AT hashimam onepotgreensynthesisofhighlyreducedgrapheneoxidedecoratedwithsilvernanoparticles |