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Smart Mn(7+) Sensing via Quenching on Dual Fluorescence of Eu(3+) Complex-Modified TiO(2) Nanoparticles
In this work, titania (TiO(2)) nanoparticles modified by Eu(TTA)(3)Phen complexes (ETP) were prepared by a simple solvothermal method developing a fluorescence Mn(7+) pollutant sensing system. The characterization results indicate that the ETP cause structural deformation and redshifts of the UV-vis...
Autores principales: | , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8709381/ https://www.ncbi.nlm.nih.gov/pubmed/34947632 http://dx.doi.org/10.3390/nano11123283 |
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author | Yang, Wenbin Niu, Siqi Wang, Yao Huang, Linjun Wang, Shichao Popat, Ketul C. Kipper, Matt J. Belfiore, Laurence A. Tang, Jianguo |
author_facet | Yang, Wenbin Niu, Siqi Wang, Yao Huang, Linjun Wang, Shichao Popat, Ketul C. Kipper, Matt J. Belfiore, Laurence A. Tang, Jianguo |
author_sort | Yang, Wenbin |
collection | PubMed |
description | In this work, titania (TiO(2)) nanoparticles modified by Eu(TTA)(3)Phen complexes (ETP) were prepared by a simple solvothermal method developing a fluorescence Mn(7+) pollutant sensing system. The characterization results indicate that the ETP cause structural deformation and redshifts of the UV-visible light absorptions of host TiO(2) nanoparticles. The ETP also reduce the crystallinity and crystallite size of TiO(2) nanoparticles. Compared with TiO(2) nanoparticles modified with Eu(3+) (TiO(2)-Eu(3+)), TiO(2) nanoparticles modified with ETP (TiO(2)-ETP) exhibit significantly stronger photoluminescence under the excitation of 394 nm. Under UV excitation, TiO(2)-ETP nanoparticles showed blue and red emission corresponding to TiO(2) and Eu(3+). In addition, as the concentration of ETP in TiO(2) nanoparticles increases, the PL intensity at 612 nm also increases. When ETP-modified TiO(2) nanoparticles are added to an aqueous solution containing Mn(7+), the fluorescence intensity of both TiO(2) and ETP decreases. The evolution of the fluorescence intensity ratio (I(1)/I(2)) of TiO(2) and ETP is linearly related to the concentration of Mn(7+). The sensitivity of fluorescence intensity to Mn(7+) concentration enables the design of dual fluorescence ratio solid particle sensors. The method proposed here is simple, accurate, efficient, and not affected by the environmental conditions. |
format | Online Article Text |
id | pubmed-8709381 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-87093812021-12-25 Smart Mn(7+) Sensing via Quenching on Dual Fluorescence of Eu(3+) Complex-Modified TiO(2) Nanoparticles Yang, Wenbin Niu, Siqi Wang, Yao Huang, Linjun Wang, Shichao Popat, Ketul C. Kipper, Matt J. Belfiore, Laurence A. Tang, Jianguo Nanomaterials (Basel) Article In this work, titania (TiO(2)) nanoparticles modified by Eu(TTA)(3)Phen complexes (ETP) were prepared by a simple solvothermal method developing a fluorescence Mn(7+) pollutant sensing system. The characterization results indicate that the ETP cause structural deformation and redshifts of the UV-visible light absorptions of host TiO(2) nanoparticles. The ETP also reduce the crystallinity and crystallite size of TiO(2) nanoparticles. Compared with TiO(2) nanoparticles modified with Eu(3+) (TiO(2)-Eu(3+)), TiO(2) nanoparticles modified with ETP (TiO(2)-ETP) exhibit significantly stronger photoluminescence under the excitation of 394 nm. Under UV excitation, TiO(2)-ETP nanoparticles showed blue and red emission corresponding to TiO(2) and Eu(3+). In addition, as the concentration of ETP in TiO(2) nanoparticles increases, the PL intensity at 612 nm also increases. When ETP-modified TiO(2) nanoparticles are added to an aqueous solution containing Mn(7+), the fluorescence intensity of both TiO(2) and ETP decreases. The evolution of the fluorescence intensity ratio (I(1)/I(2)) of TiO(2) and ETP is linearly related to the concentration of Mn(7+). The sensitivity of fluorescence intensity to Mn(7+) concentration enables the design of dual fluorescence ratio solid particle sensors. The method proposed here is simple, accurate, efficient, and not affected by the environmental conditions. MDPI 2021-12-03 /pmc/articles/PMC8709381/ /pubmed/34947632 http://dx.doi.org/10.3390/nano11123283 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Yang, Wenbin Niu, Siqi Wang, Yao Huang, Linjun Wang, Shichao Popat, Ketul C. Kipper, Matt J. Belfiore, Laurence A. Tang, Jianguo Smart Mn(7+) Sensing via Quenching on Dual Fluorescence of Eu(3+) Complex-Modified TiO(2) Nanoparticles |
title | Smart Mn(7+) Sensing via Quenching on Dual Fluorescence of Eu(3+) Complex-Modified TiO(2) Nanoparticles |
title_full | Smart Mn(7+) Sensing via Quenching on Dual Fluorescence of Eu(3+) Complex-Modified TiO(2) Nanoparticles |
title_fullStr | Smart Mn(7+) Sensing via Quenching on Dual Fluorescence of Eu(3+) Complex-Modified TiO(2) Nanoparticles |
title_full_unstemmed | Smart Mn(7+) Sensing via Quenching on Dual Fluorescence of Eu(3+) Complex-Modified TiO(2) Nanoparticles |
title_short | Smart Mn(7+) Sensing via Quenching on Dual Fluorescence of Eu(3+) Complex-Modified TiO(2) Nanoparticles |
title_sort | smart mn(7+) sensing via quenching on dual fluorescence of eu(3+) complex-modified tio(2) nanoparticles |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8709381/ https://www.ncbi.nlm.nih.gov/pubmed/34947632 http://dx.doi.org/10.3390/nano11123283 |
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