Preparation of Thin-Film Composite Nanofiltration Membranes Doped with N- and Cl-Functionalized Graphene Oxide for Water Desalination
In the present work, chemically modified graphene oxide (GO) was incorporated as a crosslinking agent into thin-film composite (TFC) nanofiltration (NF) membranes for water desalination applications, which were prepared by the interfacial polymerization (IP) method, where the monomers were piperazin...
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MDPI AG
2021-05-01
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| Series: | Polymers |
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| Online Access: | https://www.mdpi.com/2073-4360/13/10/1637 |
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| author | Francisco J. García-Picazo Sergio Pérez-Sicairos Gustavo A. Fimbres-Weihs Shui W. Lin Moisés I. Salazar-Gastélum Balter Trujillo-Navarrete |
| author_facet | Francisco J. García-Picazo Sergio Pérez-Sicairos Gustavo A. Fimbres-Weihs Shui W. Lin Moisés I. Salazar-Gastélum Balter Trujillo-Navarrete |
| author_sort | Francisco J. García-Picazo |
| collection | DOAJ |
| description | In the present work, chemically modified graphene oxide (GO) was incorporated as a crosslinking agent into thin-film composite (TFC) nanofiltration (NF) membranes for water desalination applications, which were prepared by the interfacial polymerization (IP) method, where the monomers were piperazine (PIP) and trimesoyl chloride (TMC). GO was functionalized with monomer-containing groups to promote covalent interactions with the polymeric film. The composite GO/polyamide (PA) was prepared by incorporating amine and acyl chloride groups into the structure of GO and then adding these chemical modified nanomaterial during IP. The effect of functionalized GO on membrane properties and performance was investigated. Chemical composition and surface morphology of the prepared GO and membranes were analyzed by thermogravimetric analysis (TGA), Raman spectroscopy, FTIR spectroscopy, X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD), scanning electron microscopy (SEM), atomic force microscopy (AFM), and transmission electron microscopy (TEM). The fabricated composite membranes exhibited a significant increase in permeance (from 1.12 to 1.93 L m<sup>−2</sup> h<sup>−1</sup> bar<sup>−1</sup>) and salt rejection for Na<sub>2</sub>SO<sub>4</sub> (from 95.9 to 98.9%) and NaCl (from 46.2 to 61.7%) at 2000 ppm, when compared to non-modified membranes. The amine- and acyl chloride-functionalized GO showed improved dispersibility in the respective phase. |
| first_indexed | 2024-03-10T11:17:41Z |
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| language | English |
| last_indexed | 2024-03-10T11:17:41Z |
| publishDate | 2021-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Polymers |
| spelling | doaj.art-ff28b26647644b32aa628a496db0a74e2023-11-21T20:18:33ZengMDPI AGPolymers2073-43602021-05-011310163710.3390/polym13101637Preparation of Thin-Film Composite Nanofiltration Membranes Doped with N- and Cl-Functionalized Graphene Oxide for Water DesalinationFrancisco J. García-Picazo0Sergio Pérez-Sicairos1Gustavo A. Fimbres-Weihs2Shui W. Lin3Moisés I. Salazar-Gastélum4Balter Trujillo-Navarrete5Departamento de Ingeniería Eléctrica y Electrónica, Tecnológico Nacional de México/Instituto Tecnológico de Tijuana, Tijuana, B.C. CP. 22500, MexicoDepartamento de Ingeniería Eléctrica y Electrónica, Tecnológico Nacional de México/Instituto Tecnológico de Tijuana, Tijuana, B.C. CP. 22500, MexicoSchool of Chemical and Biomolecular Engineering, The University of Sydney, Sydney, NSW 2006, AustraliaCentro de Graduados e Investigación en Química, Tecnológico Nacional de México/Instituto Tecnológico de Tijuana, Tijuana, B.C. CP. 22500, MexicoDepartamento de Ingeniería Eléctrica y Electrónica, Tecnológico Nacional de México/Instituto Tecnológico de Tijuana, Tijuana, B.C. CP. 22500, MexicoDepartamento de Ingeniería Eléctrica y Electrónica, Tecnológico Nacional de México/Instituto Tecnológico de Tijuana, Tijuana, B.C. CP. 22500, MexicoIn the present work, chemically modified graphene oxide (GO) was incorporated as a crosslinking agent into thin-film composite (TFC) nanofiltration (NF) membranes for water desalination applications, which were prepared by the interfacial polymerization (IP) method, where the monomers were piperazine (PIP) and trimesoyl chloride (TMC). GO was functionalized with monomer-containing groups to promote covalent interactions with the polymeric film. The composite GO/polyamide (PA) was prepared by incorporating amine and acyl chloride groups into the structure of GO and then adding these chemical modified nanomaterial during IP. The effect of functionalized GO on membrane properties and performance was investigated. Chemical composition and surface morphology of the prepared GO and membranes were analyzed by thermogravimetric analysis (TGA), Raman spectroscopy, FTIR spectroscopy, X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD), scanning electron microscopy (SEM), atomic force microscopy (AFM), and transmission electron microscopy (TEM). The fabricated composite membranes exhibited a significant increase in permeance (from 1.12 to 1.93 L m<sup>−2</sup> h<sup>−1</sup> bar<sup>−1</sup>) and salt rejection for Na<sub>2</sub>SO<sub>4</sub> (from 95.9 to 98.9%) and NaCl (from 46.2 to 61.7%) at 2000 ppm, when compared to non-modified membranes. The amine- and acyl chloride-functionalized GO showed improved dispersibility in the respective phase.https://www.mdpi.com/2073-4360/13/10/1637graphene oxideN- and Cl-functionalized graphene oxidethin-film nanocomposite membraneinterfacial polymerizationnanofiltration |
| spellingShingle | Francisco J. García-Picazo Sergio Pérez-Sicairos Gustavo A. Fimbres-Weihs Shui W. Lin Moisés I. Salazar-Gastélum Balter Trujillo-Navarrete Preparation of Thin-Film Composite Nanofiltration Membranes Doped with N- and Cl-Functionalized Graphene Oxide for Water Desalination Polymers graphene oxide N- and Cl-functionalized graphene oxide thin-film nanocomposite membrane interfacial polymerization nanofiltration |
| title | Preparation of Thin-Film Composite Nanofiltration Membranes Doped with N- and Cl-Functionalized Graphene Oxide for Water Desalination |
| title_full | Preparation of Thin-Film Composite Nanofiltration Membranes Doped with N- and Cl-Functionalized Graphene Oxide for Water Desalination |
| title_fullStr | Preparation of Thin-Film Composite Nanofiltration Membranes Doped with N- and Cl-Functionalized Graphene Oxide for Water Desalination |
| title_full_unstemmed | Preparation of Thin-Film Composite Nanofiltration Membranes Doped with N- and Cl-Functionalized Graphene Oxide for Water Desalination |
| title_short | Preparation of Thin-Film Composite Nanofiltration Membranes Doped with N- and Cl-Functionalized Graphene Oxide for Water Desalination |
| title_sort | preparation of thin film composite nanofiltration membranes doped with n and cl functionalized graphene oxide for water desalination |
| topic | graphene oxide N- and Cl-functionalized graphene oxide thin-film nanocomposite membrane interfacial polymerization nanofiltration |
| url | https://www.mdpi.com/2073-4360/13/10/1637 |
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