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Enhanced Chitosan Photoluminescence by Incorporation of Lithium Perchlorate
[Image: see text] An improvement in chitosan film photoluminescence was observed after adding LiClO(4). FTIR spectra, XPS, DFT calculations, and XRD measurements show an alteration of the H-bonds and an increase in the amorphous character of chitosan. PL spectra display a growth in intensity in the...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
American Chemical Society
2023
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10116549/ https://www.ncbi.nlm.nih.gov/pubmed/37091431 http://dx.doi.org/10.1021/acsomega.2c08072 |
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author | Gurumendi, Marlon López, Floralba Borrero-González, Luis J. Terencio, Thibault Caetano, Manuel Reinoso, Carlos González, Gema |
author_facet | Gurumendi, Marlon López, Floralba Borrero-González, Luis J. Terencio, Thibault Caetano, Manuel Reinoso, Carlos González, Gema |
author_sort | Gurumendi, Marlon |
collection | PubMed |
description | [Image: see text] An improvement in chitosan film photoluminescence was observed after adding LiClO(4). FTIR spectra, XPS, DFT calculations, and XRD measurements show an alteration of the H-bonds and an increase in the amorphous character of chitosan. PL spectra display a growth in intensity in the visible region along with the incorporation of lithium, signaling a possible rise in the population density of tail states and, consequently, better photon absorption, as observed from UV–vis measurements. A mechanism through aggregation-induced emission effect is proposed to explain the different results. Although this work establishes the relation between structural changes provoked by LiClO(4) incorporation and luminescence in the case of chitosan, we expect that the same approach could be generalized to similar polymeric structures. |
format | Online Article Text |
id | pubmed-10116549 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | American Chemical Society |
record_format | MEDLINE/PubMed |
spelling | pubmed-101165492023-04-21 Enhanced Chitosan Photoluminescence by Incorporation of Lithium Perchlorate Gurumendi, Marlon López, Floralba Borrero-González, Luis J. Terencio, Thibault Caetano, Manuel Reinoso, Carlos González, Gema ACS Omega [Image: see text] An improvement in chitosan film photoluminescence was observed after adding LiClO(4). FTIR spectra, XPS, DFT calculations, and XRD measurements show an alteration of the H-bonds and an increase in the amorphous character of chitosan. PL spectra display a growth in intensity in the visible region along with the incorporation of lithium, signaling a possible rise in the population density of tail states and, consequently, better photon absorption, as observed from UV–vis measurements. A mechanism through aggregation-induced emission effect is proposed to explain the different results. Although this work establishes the relation between structural changes provoked by LiClO(4) incorporation and luminescence in the case of chitosan, we expect that the same approach could be generalized to similar polymeric structures. American Chemical Society 2023-04-05 /pmc/articles/PMC10116549/ /pubmed/37091431 http://dx.doi.org/10.1021/acsomega.2c08072 Text en © 2023 The Authors. Published by American Chemical Society https://creativecommons.org/licenses/by-nc-nd/4.0/Permits non-commercial access and re-use, provided that author attribution and integrity are maintained; but does not permit creation of adaptations or other derivative works (https://creativecommons.org/licenses/by-nc-nd/4.0/). |
spellingShingle | Gurumendi, Marlon López, Floralba Borrero-González, Luis J. Terencio, Thibault Caetano, Manuel Reinoso, Carlos González, Gema Enhanced Chitosan Photoluminescence by Incorporation of Lithium Perchlorate |
title | Enhanced Chitosan
Photoluminescence by Incorporation
of Lithium Perchlorate |
title_full | Enhanced Chitosan
Photoluminescence by Incorporation
of Lithium Perchlorate |
title_fullStr | Enhanced Chitosan
Photoluminescence by Incorporation
of Lithium Perchlorate |
title_full_unstemmed | Enhanced Chitosan
Photoluminescence by Incorporation
of Lithium Perchlorate |
title_short | Enhanced Chitosan
Photoluminescence by Incorporation
of Lithium Perchlorate |
title_sort | enhanced chitosan
photoluminescence by incorporation
of lithium perchlorate |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10116549/ https://www.ncbi.nlm.nih.gov/pubmed/37091431 http://dx.doi.org/10.1021/acsomega.2c08072 |
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