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Concentrated Solar Induced Graphene

[Image: see text] Graphene is one of the most promising nanomaterials with many extraordinary properties and numerous exciting applications. In this work, a green, facile, and rapid method was developed to prepare graphene directly from common biomass materials such as banana peels, cantaloupe peels...

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Autores principales: Hu, Xiao-Hua, Zhang, Rui, Wu, Zhiyong, Xiong, Shisheng
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Chemical Society 2022
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9366939/
https://www.ncbi.nlm.nih.gov/pubmed/35967066
http://dx.doi.org/10.1021/acsomega.2c02159
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author Hu, Xiao-Hua
Zhang, Rui
Wu, Zhiyong
Xiong, Shisheng
author_facet Hu, Xiao-Hua
Zhang, Rui
Wu, Zhiyong
Xiong, Shisheng
author_sort Hu, Xiao-Hua
collection PubMed
description [Image: see text] Graphene is one of the most promising nanomaterials with many extraordinary properties and numerous exciting applications. In this work, a green, facile, and rapid method was developed to prepare graphene directly from common biomass materials such as banana peels, cantaloupe peels, coconut peels, and orange peels by using concentrated solar radiation. The basic principle of this method is photothermal conversion. On a sunny day, the sunlight was concentrated by a biconvex lens to form a focused light spot with a high temperature above 1000 °C, which can directly convert fruit peels into graphene nanosheets within 2–3 s. The product is named concentrated-solar-induced graphene (CSIG) based on the process employed to generate it. The resulting CSIG was characterized using a range of analytical techniques. The Raman spectrum of the CSIG displayed two distinct peaks corresponding to the D and G bands at ∼1343 and ∼1568 cm(–1), respectively. Scanning electron microscopy, transmission electron microscopy, and X-ray diffraction were used to confirm that the CSIG consists of a few layers of turbostratic graphene nanosheets. Atomic force microscopy characterization revealed that the CSIG nanosheets have a thickness of ∼4 nm. The antibacterial potential of the CSIG was also explored. The CSIG had a strong inhibitory effect on the growth of Escherichia coli. This simple, green, and straightforward method for producing graphene may open a new route for turning waste into useful materials: an inexhaustible and pollution-free natural resource can be readily exploited by using a solar tracker-lens system for the large-scale production of graphene materials directly from low-cost biomass materials.
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spelling pubmed-93669392022-08-12 Concentrated Solar Induced Graphene Hu, Xiao-Hua Zhang, Rui Wu, Zhiyong Xiong, Shisheng ACS Omega [Image: see text] Graphene is one of the most promising nanomaterials with many extraordinary properties and numerous exciting applications. In this work, a green, facile, and rapid method was developed to prepare graphene directly from common biomass materials such as banana peels, cantaloupe peels, coconut peels, and orange peels by using concentrated solar radiation. The basic principle of this method is photothermal conversion. On a sunny day, the sunlight was concentrated by a biconvex lens to form a focused light spot with a high temperature above 1000 °C, which can directly convert fruit peels into graphene nanosheets within 2–3 s. The product is named concentrated-solar-induced graphene (CSIG) based on the process employed to generate it. The resulting CSIG was characterized using a range of analytical techniques. The Raman spectrum of the CSIG displayed two distinct peaks corresponding to the D and G bands at ∼1343 and ∼1568 cm(–1), respectively. Scanning electron microscopy, transmission electron microscopy, and X-ray diffraction were used to confirm that the CSIG consists of a few layers of turbostratic graphene nanosheets. Atomic force microscopy characterization revealed that the CSIG nanosheets have a thickness of ∼4 nm. The antibacterial potential of the CSIG was also explored. The CSIG had a strong inhibitory effect on the growth of Escherichia coli. This simple, green, and straightforward method for producing graphene may open a new route for turning waste into useful materials: an inexhaustible and pollution-free natural resource can be readily exploited by using a solar tracker-lens system for the large-scale production of graphene materials directly from low-cost biomass materials. American Chemical Society 2022-07-31 /pmc/articles/PMC9366939/ /pubmed/35967066 http://dx.doi.org/10.1021/acsomega.2c02159 Text en © 2022 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 Hu, Xiao-Hua
Zhang, Rui
Wu, Zhiyong
Xiong, Shisheng
Concentrated Solar Induced Graphene
title Concentrated Solar Induced Graphene
title_full Concentrated Solar Induced Graphene
title_fullStr Concentrated Solar Induced Graphene
title_full_unstemmed Concentrated Solar Induced Graphene
title_short Concentrated Solar Induced Graphene
title_sort concentrated solar induced graphene
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9366939/
https://www.ncbi.nlm.nih.gov/pubmed/35967066
http://dx.doi.org/10.1021/acsomega.2c02159
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