Development of amine-functionalized fluorescent silica nanoparticles from coal fly ash as a sustainable source for nanofertilizer
Abstract 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...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2024-02-01
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| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-024-53122-z |
| _version_ | 1797274639618015232 |
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| author | Vikram Singh Tuhin Mandal Shiv Rag Mishra Anupama Singh Puja Khare |
| author_facet | Vikram Singh Tuhin Mandal Shiv Rag Mishra Anupama Singh Puja Khare |
| author_sort | Vikram Singh |
| collection | DOAJ |
| description | Abstract 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. |
| first_indexed | 2024-03-07T15:01:11Z |
| format | Article |
| id | doaj.art-3641edebac99487f8821c6cea2f39b4e |
| institution | Directory Open Access Journal |
| issn | 2045-2322 |
| language | English |
| last_indexed | 2024-03-07T15:01:11Z |
| publishDate | 2024-02-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj.art-3641edebac99487f8821c6cea2f39b4e2024-03-05T19:08:09ZengNature PortfolioScientific Reports2045-23222024-02-0114111310.1038/s41598-024-53122-zDevelopment of amine-functionalized fluorescent silica nanoparticles from coal fly ash as a sustainable source for nanofertilizerVikram Singh0Tuhin Mandal1Shiv Rag Mishra2Anupama Singh3Puja Khare4Environment Emission and CRM Division, CSIR-Central Institute of Mining and Fuel Research DhanbadEnvironment Emission and CRM Division, CSIR-Central Institute of Mining and Fuel Research DhanbadEnvironment Emission and CRM Division, CSIR-Central Institute of Mining and Fuel Research DhanbadAgronomy and Soil Science Division, CSIR-Central Institute of Medicinal and Aromatic PlantsAcademy of Scientific and Innovative Research (AcSIR)Abstract 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.https://doi.org/10.1038/s41598-024-53122-z |
| spellingShingle | Vikram Singh Tuhin Mandal Shiv Rag Mishra Anupama Singh Puja Khare Development of amine-functionalized fluorescent silica nanoparticles from coal fly ash as a sustainable source for nanofertilizer Scientific Reports |
| title | Development of amine-functionalized fluorescent silica nanoparticles from coal fly ash as a sustainable source for nanofertilizer |
| title_full | Development of amine-functionalized fluorescent silica nanoparticles from coal fly ash as a sustainable source for nanofertilizer |
| title_fullStr | Development of amine-functionalized fluorescent silica nanoparticles from coal fly ash as a sustainable source for nanofertilizer |
| title_full_unstemmed | Development of amine-functionalized fluorescent silica nanoparticles from coal fly ash as a sustainable source for nanofertilizer |
| title_short | Development of amine-functionalized fluorescent silica nanoparticles from coal fly ash as a sustainable source for nanofertilizer |
| title_sort | development of amine functionalized fluorescent silica nanoparticles from coal fly ash as a sustainable source for nanofertilizer |
| url | https://doi.org/10.1038/s41598-024-53122-z |
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