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Graphene Oxide Facilitates Transformation of Waste PET into MOF Nanorods in Ionic Liquids

Although though ionic liquids (IL) are rapidly emerging as highly efficient reagents for the depolymerization of waste plastics, their high cost and adverse impact on the environment make the overall process not only expensive but also environmentally harmful. In this manuscript, we report that grap...

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Autores principales: Gangaraju, Deepa, Shanmugharaj, Andikkadu Masilamani, Sridhar, Vadahanambi
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10255645/
https://www.ncbi.nlm.nih.gov/pubmed/37299279
http://dx.doi.org/10.3390/polym15112479
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author Gangaraju, Deepa
Shanmugharaj, Andikkadu Masilamani
Sridhar, Vadahanambi
author_facet Gangaraju, Deepa
Shanmugharaj, Andikkadu Masilamani
Sridhar, Vadahanambi
author_sort Gangaraju, Deepa
collection PubMed
description Although though ionic liquids (IL) are rapidly emerging as highly efficient reagents for the depolymerization of waste plastics, their high cost and adverse impact on the environment make the overall process not only expensive but also environmentally harmful. In this manuscript, we report that graphene oxide (GO) facilitates the transformation of waste polyethylene terephthalate (PET) to Ni-MOF (metal organic framework) nanorods anchored on reduced graphene oxide (Ni–MOF@rGO) through NMP (N-Methyl-2-pyrrolidone)-based coordination in ionic liquids. Morphological studies using scanning electron microscopy (SEM) and transmission electron microscopy (TEM) showed mesoporous three-dimensional structures of micrometer-long Ni-MOF nanorods anchored on reduced graphene substrates (Ni–MOF@rGO ), whereas structural studies using XRD and Raman spectra demonstrated the crystallinity of Ni-MOF nanorods. Chemical analysis of Ni–MOF@rGO carried out using X-ray photoelectron spectroscopy demonstrated that nickel moieties exist in an electroactive OH-Ni-OH state, which was further confirmed by nanoscale elemental maps recorded using energy-dispersive X-ray spectroscopy (EDS). The applicability of Ni–MOF@rGO as an electro-catalyst in a urea-enhanced water oxidation reaction (UOR) is reported. Furthermore, the ability of our newly developed NMP-based IL to grow MOF nanocubes on carbon nanotubes and MOF nano-islands on carbon fibers is also reported.
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spelling pubmed-102556452023-06-10 Graphene Oxide Facilitates Transformation of Waste PET into MOF Nanorods in Ionic Liquids Gangaraju, Deepa Shanmugharaj, Andikkadu Masilamani Sridhar, Vadahanambi Polymers (Basel) Article Although though ionic liquids (IL) are rapidly emerging as highly efficient reagents for the depolymerization of waste plastics, their high cost and adverse impact on the environment make the overall process not only expensive but also environmentally harmful. In this manuscript, we report that graphene oxide (GO) facilitates the transformation of waste polyethylene terephthalate (PET) to Ni-MOF (metal organic framework) nanorods anchored on reduced graphene oxide (Ni–MOF@rGO) through NMP (N-Methyl-2-pyrrolidone)-based coordination in ionic liquids. Morphological studies using scanning electron microscopy (SEM) and transmission electron microscopy (TEM) showed mesoporous three-dimensional structures of micrometer-long Ni-MOF nanorods anchored on reduced graphene substrates (Ni–MOF@rGO ), whereas structural studies using XRD and Raman spectra demonstrated the crystallinity of Ni-MOF nanorods. Chemical analysis of Ni–MOF@rGO carried out using X-ray photoelectron spectroscopy demonstrated that nickel moieties exist in an electroactive OH-Ni-OH state, which was further confirmed by nanoscale elemental maps recorded using energy-dispersive X-ray spectroscopy (EDS). The applicability of Ni–MOF@rGO as an electro-catalyst in a urea-enhanced water oxidation reaction (UOR) is reported. Furthermore, the ability of our newly developed NMP-based IL to grow MOF nanocubes on carbon nanotubes and MOF nano-islands on carbon fibers is also reported. MDPI 2023-05-27 /pmc/articles/PMC10255645/ /pubmed/37299279 http://dx.doi.org/10.3390/polym15112479 Text en © 2023 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
Gangaraju, Deepa
Shanmugharaj, Andikkadu Masilamani
Sridhar, Vadahanambi
Graphene Oxide Facilitates Transformation of Waste PET into MOF Nanorods in Ionic Liquids
title Graphene Oxide Facilitates Transformation of Waste PET into MOF Nanorods in Ionic Liquids
title_full Graphene Oxide Facilitates Transformation of Waste PET into MOF Nanorods in Ionic Liquids
title_fullStr Graphene Oxide Facilitates Transformation of Waste PET into MOF Nanorods in Ionic Liquids
title_full_unstemmed Graphene Oxide Facilitates Transformation of Waste PET into MOF Nanorods in Ionic Liquids
title_short Graphene Oxide Facilitates Transformation of Waste PET into MOF Nanorods in Ionic Liquids
title_sort graphene oxide facilitates transformation of waste pet into mof nanorods in ionic liquids
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10255645/
https://www.ncbi.nlm.nih.gov/pubmed/37299279
http://dx.doi.org/10.3390/polym15112479
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