A circular approach to discarded textiles: using depolymerized polyester as a precursor for the synthesis of antibacterial Cu(bdc) metal–organic frameworks
We report on the synthesis of Cu(bdc) metal–organic frameworks (MOFs) using discarded polyester fabrics as a raw material and on the evaluation of these MOFs as antibacterial coatings. Discarded PET (polyethylene terephthalate) fabrics, of diverse colors, went through ethanolysis to produce disodium...
| Autores: | , , , , , , |
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| Tipo de recurso: | artículo |
| Fecha de publicación: | 2022 |
| País: | España |
| Institución: | Universitat Politècnica de Catalunya (UPC) |
| Repositorio: | UPCommons. Portal del coneixement obert de la UPC |
| Idioma: | inglés |
| OAI Identifier: | oai:upcommons.upc.edu:2117/383307 |
| Acceso en línea: | https://hdl.handle.net/2117/383307 https://dx.doi.org/10.1007/s42824-022-00066-2 |
| Access Level: | acceso abierto |
| Palabra clave: | Textile waste Recycling (Waste, etc.) Recycling Metal–organic frameworks Finishing Residus tèxtils Reciclatge (Residus, etc.) Àrees temàtiques de la UPC::Enginyeria tèxtil |
| Sumario: | We report on the synthesis of Cu(bdc) metal–organic frameworks (MOFs) using discarded polyester fabrics as a raw material and on the evaluation of these MOFs as antibacterial coatings. Discarded PET (polyethylene terephthalate) fabrics, of diverse colors, went through ethanolysis to produce disodium terephthalate, which after further treatment with hydrochloric acid yielded high-purity terephthalic acid. We used a solvothermal method to convert this terephthalic acid and copper nitrate into a Cu(bdc) metal–organic framework. The resulting Cu(bdc) MOFs were used to coat pristine polyester fabrics and the antibacterial activity of the coated fabrics against Escherichia coli was evaluated using ASTM2149-13a method. We used 1H-NMR and FTIR spectroscopy to confirm the chemical transformation from discard PET fibers to terephtalic acid, and XRD, SEM, dynamic light scattering, and FTIR to confirm the synthesis of the Cu(bdc) MOF. This study demonstrates the potential use of recycled textiles as raw materials to produce value-added compounds and how this process may enable a more circular approach for the textile industry |
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