Green, economical synthesis of nitrogen enriched carbon nanoparticles from seaweed extract and their application as invisible ink and fluorescent film
IR@CIMFR: CSIR-Central Institute of Mining and Fuel Research, Dhanbad
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| Title |
Green, economical synthesis of nitrogen enriched carbon nanoparticles from seaweed extract and their application as invisible ink and fluorescent film
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| Creator |
Singh, Vikram
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| Subject |
Envieronmental Management Group
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| Description |
In this article, we synthesized fluorescent nitrogen-enriched carbon nanoparticles (N-CNPs), which were pre-pared via the hydrothermal treatment of pyrolyzed seaweed extract and ethylene diamine at 160 ◦C for 12.0 h. These N-CNPs demonstrated a 12 nm average diameter with carbonyl, hydroxyl, and imine functionality on their surface. The zeta potential value was found to be negative which further conrms the presence of acid/imine groups on the surface of N-CNPs. The prepared N-CNPs showed strong blue fluorescence with 24% quantum yield under UV light illumination. Here, we introduced metal-free water dispersed N-CNPs as invisible ink for security purposes. The information was written by the N-CNPs in TLC plate and N-CNPs/PVA flexible composite film is invisible in daylight and can be readable in UV light illumination.
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| Publisher |
Elsevier
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| Date |
2022-02-15
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| Type |
Article
PeerReviewed |
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| Identifier |
Singh, Vikram (2022) Green, economical synthesis of nitrogen enriched carbon nanoparticles from seaweed extract and their application as invisible ink and fluorescent film. Materials Letters, 309.
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| Relation |
http://cimfr.csircentral.net/2473/
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