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High yield synthesis of graphene quantum dots from biomass waste as a highly selective probe for Fe(3+) sensing
Graphene quantum dots (GQDs), a novel type of zero-dimensional fluorescent materials, have gained considerable attention owing to their unique optical properties, size and quantum confinement. However, their high cost and low yield remain open challenges for practical applications. In this work, a l...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7718218/ https://www.ncbi.nlm.nih.gov/pubmed/33277551 http://dx.doi.org/10.1038/s41598-020-78070-2 |
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author | Abbas, Aumber Tabish, Tanveer A. Bull, Steve J. Lim, Tuti Mariana Phan, Anh N. |
author_facet | Abbas, Aumber Tabish, Tanveer A. Bull, Steve J. Lim, Tuti Mariana Phan, Anh N. |
author_sort | Abbas, Aumber |
collection | PubMed |
description | Graphene quantum dots (GQDs), a novel type of zero-dimensional fluorescent materials, have gained considerable attention owing to their unique optical properties, size and quantum confinement. However, their high cost and low yield remain open challenges for practical applications. In this work, a low cost, green and renewable biomass resource is utilised for the high yield synthesis of GQDs via microwave treatment. The synthesis approach involves oxidative cutting of short range ordered carbon derived from pyrolysis of biomass waste. The GQDs are successfully synthesised with a high yield of over 84%, the highest value reported to date for biomass derived GQDs. As prepared GQDs are highly hydrophilic and exhibit unique excitation independent photoluminescence emission, attributed to their single-emission fluorescence centre. As prepared GQDs are further modified by simple hydrothermal treatment and exhibit pronounced optical properties with a high quantum yield of 0.23. These modified GQDs are used for the highly selective and sensitive sensing of ferric ions (Fe(3+)). A sensitive sensor is prepared for the selective detection of Fe(3+) ions with a detection limit of as low as 2.5 × 10(–6) M. The utilisation of renewable resource along with facile microwave treatment paves the way to sustainable, high yield and cost-effective synthesis of GQDs for practical applications. |
format | Online Article Text |
id | pubmed-7718218 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-77182182020-12-08 High yield synthesis of graphene quantum dots from biomass waste as a highly selective probe for Fe(3+) sensing Abbas, Aumber Tabish, Tanveer A. Bull, Steve J. Lim, Tuti Mariana Phan, Anh N. Sci Rep Article Graphene quantum dots (GQDs), a novel type of zero-dimensional fluorescent materials, have gained considerable attention owing to their unique optical properties, size and quantum confinement. However, their high cost and low yield remain open challenges for practical applications. In this work, a low cost, green and renewable biomass resource is utilised for the high yield synthesis of GQDs via microwave treatment. The synthesis approach involves oxidative cutting of short range ordered carbon derived from pyrolysis of biomass waste. The GQDs are successfully synthesised with a high yield of over 84%, the highest value reported to date for biomass derived GQDs. As prepared GQDs are highly hydrophilic and exhibit unique excitation independent photoluminescence emission, attributed to their single-emission fluorescence centre. As prepared GQDs are further modified by simple hydrothermal treatment and exhibit pronounced optical properties with a high quantum yield of 0.23. These modified GQDs are used for the highly selective and sensitive sensing of ferric ions (Fe(3+)). A sensitive sensor is prepared for the selective detection of Fe(3+) ions with a detection limit of as low as 2.5 × 10(–6) M. The utilisation of renewable resource along with facile microwave treatment paves the way to sustainable, high yield and cost-effective synthesis of GQDs for practical applications. Nature Publishing Group UK 2020-12-04 /pmc/articles/PMC7718218/ /pubmed/33277551 http://dx.doi.org/10.1038/s41598-020-78070-2 Text en © The Author(s) 2020 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/. |
spellingShingle | Article Abbas, Aumber Tabish, Tanveer A. Bull, Steve J. Lim, Tuti Mariana Phan, Anh N. High yield synthesis of graphene quantum dots from biomass waste as a highly selective probe for Fe(3+) sensing |
title | High yield synthesis of graphene quantum dots from biomass waste as a highly selective probe for Fe(3+) sensing |
title_full | High yield synthesis of graphene quantum dots from biomass waste as a highly selective probe for Fe(3+) sensing |
title_fullStr | High yield synthesis of graphene quantum dots from biomass waste as a highly selective probe for Fe(3+) sensing |
title_full_unstemmed | High yield synthesis of graphene quantum dots from biomass waste as a highly selective probe for Fe(3+) sensing |
title_short | High yield synthesis of graphene quantum dots from biomass waste as a highly selective probe for Fe(3+) sensing |
title_sort | high yield synthesis of graphene quantum dots from biomass waste as a highly selective probe for fe(3+) sensing |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7718218/ https://www.ncbi.nlm.nih.gov/pubmed/33277551 http://dx.doi.org/10.1038/s41598-020-78070-2 |
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