Facile synthesis of water-soluble carbon nano-onions under alkaline conditions
Carbonization of tomatoes at 240 °C using 30% (w/v) NaOH as catalyst produced carbon onions (C-onions), while solely carbon dots (C-dots) were obtained at the same temperature in the absence of the catalyst. Other natural materials, such as carrots and tree leaves (acer saccharum), under the same te...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Beilstein-Institut
2016-05-01
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| Series: | Beilstein Journal of Nanotechnology |
| Subjects: | |
| Online Access: | https://doi.org/10.3762/bjnano.7.67 |
| _version_ | 1798043145337831424 |
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| author | Gaber Hashem Gaber Ahmed Rosana Badía Laíño Josefa Angela García Calzón Marta Elena Díaz García |
| author_facet | Gaber Hashem Gaber Ahmed Rosana Badía Laíño Josefa Angela García Calzón Marta Elena Díaz García |
| author_sort | Gaber Hashem Gaber Ahmed |
| collection | DOAJ |
| description | Carbonization of tomatoes at 240 °C using 30% (w/v) NaOH as catalyst produced carbon onions (C-onions), while solely carbon dots (C-dots) were obtained at the same temperature in the absence of the catalyst. Other natural materials, such as carrots and tree leaves (acer saccharum), under the same temperature and alkaline conditions did not produce carbon onions. XRD, FTIR, HRTEM, UV–vis spectroscopy, and photoluminescence analyses were performed to characterize the as-synthesized carbon nanomaterials. Preliminary tests demonstrate a capability of the versatile materials for chemical sensing of metal ions. The high content of lycopene in tomatoes may explain the formation of C-onions in alkaline media and a possible formation mechanism for such structures was outlined. |
| first_indexed | 2024-04-11T22:45:26Z |
| format | Article |
| id | doaj.art-8fea1f09a188403faaaa3abcf51bf38b |
| institution | Directory Open Access Journal |
| issn | 2190-4286 |
| language | English |
| last_indexed | 2024-04-11T22:45:26Z |
| publishDate | 2016-05-01 |
| publisher | Beilstein-Institut |
| record_format | Article |
| series | Beilstein Journal of Nanotechnology |
| spelling | doaj.art-8fea1f09a188403faaaa3abcf51bf38b2022-12-22T03:58:46ZengBeilstein-InstitutBeilstein Journal of Nanotechnology2190-42862016-05-017175876610.3762/bjnano.7.672190-4286-7-67Facile synthesis of water-soluble carbon nano-onions under alkaline conditionsGaber Hashem Gaber Ahmed0Rosana Badía Laíño1Josefa Angela García Calzón2Marta Elena Díaz García3Department of Physical and Analytical Chemistry, Faculty of Chemistry, University of Oviedo, c/Julián Clavería, 8. Oviedo, 33006, SpainChemistry Department, Faculty of Science, Damanhour University, Damanhour, EgyptChemistry Department, Faculty of Science, Damanhour University, Damanhour, EgyptChemistry Department, Faculty of Science, Damanhour University, Damanhour, EgyptCarbonization of tomatoes at 240 °C using 30% (w/v) NaOH as catalyst produced carbon onions (C-onions), while solely carbon dots (C-dots) were obtained at the same temperature in the absence of the catalyst. Other natural materials, such as carrots and tree leaves (acer saccharum), under the same temperature and alkaline conditions did not produce carbon onions. XRD, FTIR, HRTEM, UV–vis spectroscopy, and photoluminescence analyses were performed to characterize the as-synthesized carbon nanomaterials. Preliminary tests demonstrate a capability of the versatile materials for chemical sensing of metal ions. The high content of lycopene in tomatoes may explain the formation of C-onions in alkaline media and a possible formation mechanism for such structures was outlined.https://doi.org/10.3762/bjnano.7.67carbon dotscarbon onionsmetal-ion sensingphotoluminescencethermal carbonization |
| spellingShingle | Gaber Hashem Gaber Ahmed Rosana Badía Laíño Josefa Angela García Calzón Marta Elena Díaz García Facile synthesis of water-soluble carbon nano-onions under alkaline conditions Beilstein Journal of Nanotechnology carbon dots carbon onions metal-ion sensing photoluminescence thermal carbonization |
| title | Facile synthesis of water-soluble carbon nano-onions under alkaline conditions |
| title_full | Facile synthesis of water-soluble carbon nano-onions under alkaline conditions |
| title_fullStr | Facile synthesis of water-soluble carbon nano-onions under alkaline conditions |
| title_full_unstemmed | Facile synthesis of water-soluble carbon nano-onions under alkaline conditions |
| title_short | Facile synthesis of water-soluble carbon nano-onions under alkaline conditions |
| title_sort | facile synthesis of water soluble carbon nano onions under alkaline conditions |
| topic | carbon dots carbon onions metal-ion sensing photoluminescence thermal carbonization |
| url | https://doi.org/10.3762/bjnano.7.67 |
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