Film-based carbon nanodots from carrageenan and its effects on heavy metals, dyes, and microbes

Carbon nanodots (CNDs) is one of the new excellent carbon nanomaterials, which received a significant interest due to its excellent high fluorescence properties. This study explored the potential of carrageenan (ᴋ-, ɩ-, λ-) as a carbon source for CNDs since it contains sulfate ester groups that migh...

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التفاصيل البيبلوغرافية
المؤلف الرئيسي: Leuterio, Jessa C.
التنسيق: text
اللغة:English
منشور في: Animo Repository 2020
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الوصول للمادة أونلاين:https://animorepository.dlsu.edu.ph/etd_masteral/5956
https://animorepository.dlsu.edu.ph/cgi/viewcontent.cgi?article=13010&context=etd_masteral
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spelling oai:animorepository.dlsu.edu.ph:etd_masteral-130102022-05-04T07:29:51Z Film-based carbon nanodots from carrageenan and its effects on heavy metals, dyes, and microbes Leuterio, Jessa C. Carbon nanodots (CNDs) is one of the new excellent carbon nanomaterials, which received a significant interest due to its excellent high fluorescence properties. This study explored the potential of carrageenan (ᴋ-, ɩ-, λ-) as a carbon source for CNDs since it contains sulfate ester groups that might offer different properties. TEM analysis showed the CNDs to have quasi-spherical shapes with average size at 3.8 nm. The CNDs were embedded in the carrageenan film to prevent its aggregation and to increase its stability for various applications. The CNDs embedded in films show different properties compared to bare CNDs in solution as determined by Dynamic Light Scattering, Zeta potential, UV-Vis, Fluorescence, FTIR, and NMR spectroscopies. The films loaded with CNDs were explored for its application in sensing heavy metal, degradation of dyes and antimicrobial activity. Results showed the potential of CNDs in films to selectively detect Cu2+ using digital colorimetric analysis. Its potential use in degrading dyes such as methyl orange and Eriochrome Black T was shown positively. Likewise, quick investigation on its effect in preventing the growth of molds was demonstrated. The study demonstrated the difference of the carrageenan-based CNDs compared to the CNDs prepared from simple sugar and showed its potential application outside the food industry. 2020-10-01T07:00:00Z text application/pdf https://animorepository.dlsu.edu.ph/etd_masteral/5956 https://animorepository.dlsu.edu.ph/cgi/viewcontent.cgi?article=13010&context=etd_masteral Master's Theses English Animo Repository Nanoparticles Quantum dots Nanostructured materials Chemistry
institution De La Salle University
building De La Salle University Library
continent Asia
country Philippines
Philippines
content_provider De La Salle University Library
collection DLSU Institutional Repository
language English
topic Nanoparticles
Quantum dots
Nanostructured materials
Chemistry
spellingShingle Nanoparticles
Quantum dots
Nanostructured materials
Chemistry
Leuterio, Jessa C.
Film-based carbon nanodots from carrageenan and its effects on heavy metals, dyes, and microbes
description Carbon nanodots (CNDs) is one of the new excellent carbon nanomaterials, which received a significant interest due to its excellent high fluorescence properties. This study explored the potential of carrageenan (ᴋ-, ɩ-, λ-) as a carbon source for CNDs since it contains sulfate ester groups that might offer different properties. TEM analysis showed the CNDs to have quasi-spherical shapes with average size at 3.8 nm. The CNDs were embedded in the carrageenan film to prevent its aggregation and to increase its stability for various applications. The CNDs embedded in films show different properties compared to bare CNDs in solution as determined by Dynamic Light Scattering, Zeta potential, UV-Vis, Fluorescence, FTIR, and NMR spectroscopies. The films loaded with CNDs were explored for its application in sensing heavy metal, degradation of dyes and antimicrobial activity. Results showed the potential of CNDs in films to selectively detect Cu2+ using digital colorimetric analysis. Its potential use in degrading dyes such as methyl orange and Eriochrome Black T was shown positively. Likewise, quick investigation on its effect in preventing the growth of molds was demonstrated. The study demonstrated the difference of the carrageenan-based CNDs compared to the CNDs prepared from simple sugar and showed its potential application outside the food industry.
format text
author Leuterio, Jessa C.
author_facet Leuterio, Jessa C.
author_sort Leuterio, Jessa C.
title Film-based carbon nanodots from carrageenan and its effects on heavy metals, dyes, and microbes
title_short Film-based carbon nanodots from carrageenan and its effects on heavy metals, dyes, and microbes
title_full Film-based carbon nanodots from carrageenan and its effects on heavy metals, dyes, and microbes
title_fullStr Film-based carbon nanodots from carrageenan and its effects on heavy metals, dyes, and microbes
title_full_unstemmed Film-based carbon nanodots from carrageenan and its effects on heavy metals, dyes, and microbes
title_sort film-based carbon nanodots from carrageenan and its effects on heavy metals, dyes, and microbes
publisher Animo Repository
publishDate 2020
url https://animorepository.dlsu.edu.ph/etd_masteral/5956
https://animorepository.dlsu.edu.ph/cgi/viewcontent.cgi?article=13010&context=etd_masteral
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