Development of a mine‑functionalized fluorescent silica nanoparticles from coal fly ash as a sustainable source for nano fertilizer
IR@CIMFR: CSIR-Central Institute of Mining and Fuel Research, Dhanbad
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Title |
Development of a mine‑functionalized fluorescent
silica nanoparticles from coal fly ash as a sustainable source
for nano fertilizer
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Creator |
Mandal, Tuhin
Ghosh, Ashish Kumar Mishra, Shiv Rag Singh, Vikram Khare , Puja |
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Subject |
Envieronmental Management Group
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Description |
Scaling up the synthesis of fluorescent silica nanoparticles to meet the current demand in diverse
applications involves technological limitations. The present study relates to the hydrothermal
synthesis of water‑soluble, crystalline, blue‑emitting amine‑functionalized silica nanoparticles
from coal fly ash sustainably and economically. This study used tertiary amine (trimethylamine) to
prepare amine‑functionalized fluorescent silica nanoparticles, enhancing fluorescence quantum
yield and nitrogen content for nanofertilizer application. The TEM and FESEM studies show that
the silica nanoparticles have a spherical morphology with an average diameter of 4.0 nm. The x‑ray
photoelectron and Fourier transform infrared spectroscopy studies reveal the presence of the amine
group at the surface of silica nanoparticles. The silica nanoparticles exhibit blue fluorescence with
an emission maximum of 454 nm at 370 nm excitation and show excitation‑dependent emission
properties in the aqueous medium. With the perfect spectral overlap between silica nanoparticle
emission (donor) and chlorophyll absorption (acceptor), fluorescent silica nanoparticles enhance plant
photosynthesis rate by resonance energy transfer. This process accelerates the photosynthesis rate to
improve the individual plant’s quality and growth. These findings suggested that the fly ash‑derived
functionalized silica nanoparticles could be employed as nanofertilizers and novel delivery agents
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Publisher |
Springer
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Date |
2024-02-06
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Type |
Article
PeerReviewed |
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Identifier |
Mandal, Tuhin and Ghosh, Ashish Kumar and Mishra, Shiv Rag and Singh, Vikram and Khare , Puja (2024) Development of a mine‑functionalized fluorescent silica nanoparticles from coal fly ash as a sustainable source for nano fertilizer. Scientific Reports.
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Relation |
http://cimfr.csircentral.net/2672/
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