Evaluation of APTES-Functionalized Zinc Oxide Nanoparticles for Adsorption of CH<sub>4</sub> and CO<sub>2</sub>
ZnO nanoparticles functionalized with APTES were obtained to evaluate their CH<sub>4</sub> and CO<sub>2</sub> adsorption at 298 K in a range between 0 and 10 bar. First, ZnO nanoparticles were obtained by a precipitation method and subsequently coated with (3-aminopropyl)trie...
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MDPI AG
2024-11-01
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| Series: | Molecules |
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| author | Luis A. Montejo-Mesa Alicia M. Díaz-García Celio L. Cavalcante Enrique Vilarrasa-García Enrique Rodríguez-Castellón Daniel Ballesteros-Plata Giselle I. Autié-Castro |
| author_facet | Luis A. Montejo-Mesa Alicia M. Díaz-García Celio L. Cavalcante Enrique Vilarrasa-García Enrique Rodríguez-Castellón Daniel Ballesteros-Plata Giselle I. Autié-Castro |
| author_sort | Luis A. Montejo-Mesa |
| collection | DOAJ |
| description | ZnO nanoparticles functionalized with APTES were obtained to evaluate their CH<sub>4</sub> and CO<sub>2</sub> adsorption at 298 K in a range between 0 and 10 bar. First, ZnO nanoparticles were obtained by a precipitation method and subsequently coated with (3-aminopropyl)triethoxysilane (APTES). As a preliminary study, the results were compared with previously reported naked nanoparticles in order to evaluate the influence of APTES coating on CO<sub>2</sub> selectivity. UV-Vis, FT-IR spectroscopy, TGA, XRD, TEM/EDX, XPS and N<sub>2</sub> adsorption at 77 K were used to characterize the evaluated material. It was observed that the amount of gas adsorbed on the surface of the nanostructure was very small in comparison with other materials traditionally used for this purpose but slightly higher than those obtained in naked nanoparticles evaluated in previous studies. The affinity of CO<sub>2</sub> for the amines groups of the APTES ligand was also discussed. |
| format | Article |
| id | doaj-art-63863bff716d4b1b8c3cdbf6c1d8c231 |
| institution | DOAJ |
| issn | 1420-3049 |
| language | English |
| publishDate | 2024-11-01 |
| publisher | MDPI AG |
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| series | Molecules |
| spelling | doaj-art-63863bff716d4b1b8c3cdbf6c1d8c2312025-08-20T02:49:56ZengMDPI AGMolecules1420-30492024-11-012921521910.3390/molecules29215219Evaluation of APTES-Functionalized Zinc Oxide Nanoparticles for Adsorption of CH<sub>4</sub> and CO<sub>2</sub>Luis A. Montejo-Mesa0Alicia M. Díaz-García1Celio L. Cavalcante2Enrique Vilarrasa-García3Enrique Rodríguez-Castellón4Daniel Ballesteros-Plata5Giselle I. Autié-Castro6Laboratory of Bioinorganic, Department of General and Inorganic Chemistry, University of Havana, Havana 10400, CubaLaboratory of Bioinorganic, Department of General and Inorganic Chemistry, University of Havana, Havana 10400, CubaGPSA-Group of Research in Separations by Adsorption, Department of Chemical Engineering, Federal University of Ceará, Campus do Pici, Fortaleza 60001, CE, BrazilGPSA-Group of Research in Separations by Adsorption, Department of Chemical Engineering, Federal University of Ceará, Campus do Pici, Fortaleza 60001, CE, BrazilFaculty of Sciences, Department of Inorganic Chemistry, University of Malaga, 29071 Málaga, SpainFaculty of Sciences, Department of Inorganic Chemistry, University of Malaga, 29071 Málaga, SpainInstitute of Science and Technology of Materials (IMRE), University of Havana, Havana 10400, CubaZnO nanoparticles functionalized with APTES were obtained to evaluate their CH<sub>4</sub> and CO<sub>2</sub> adsorption at 298 K in a range between 0 and 10 bar. First, ZnO nanoparticles were obtained by a precipitation method and subsequently coated with (3-aminopropyl)triethoxysilane (APTES). As a preliminary study, the results were compared with previously reported naked nanoparticles in order to evaluate the influence of APTES coating on CO<sub>2</sub> selectivity. UV-Vis, FT-IR spectroscopy, TGA, XRD, TEM/EDX, XPS and N<sub>2</sub> adsorption at 77 K were used to characterize the evaluated material. It was observed that the amount of gas adsorbed on the surface of the nanostructure was very small in comparison with other materials traditionally used for this purpose but slightly higher than those obtained in naked nanoparticles evaluated in previous studies. The affinity of CO<sub>2</sub> for the amines groups of the APTES ligand was also discussed.https://www.mdpi.com/1420-3049/29/21/5219ZnONPs@APTES nanoparticlesfunctionalizationadsorptionseparationCH<sub>4</sub>CO<sub>2</sub> |
| spellingShingle | Luis A. Montejo-Mesa Alicia M. Díaz-García Celio L. Cavalcante Enrique Vilarrasa-García Enrique Rodríguez-Castellón Daniel Ballesteros-Plata Giselle I. Autié-Castro Evaluation of APTES-Functionalized Zinc Oxide Nanoparticles for Adsorption of CH<sub>4</sub> and CO<sub>2</sub> Molecules ZnONPs@APTES nanoparticles functionalization adsorption separation CH<sub>4</sub> CO<sub>2</sub> |
| title | Evaluation of APTES-Functionalized Zinc Oxide Nanoparticles for Adsorption of CH<sub>4</sub> and CO<sub>2</sub> |
| title_full | Evaluation of APTES-Functionalized Zinc Oxide Nanoparticles for Adsorption of CH<sub>4</sub> and CO<sub>2</sub> |
| title_fullStr | Evaluation of APTES-Functionalized Zinc Oxide Nanoparticles for Adsorption of CH<sub>4</sub> and CO<sub>2</sub> |
| title_full_unstemmed | Evaluation of APTES-Functionalized Zinc Oxide Nanoparticles for Adsorption of CH<sub>4</sub> and CO<sub>2</sub> |
| title_short | Evaluation of APTES-Functionalized Zinc Oxide Nanoparticles for Adsorption of CH<sub>4</sub> and CO<sub>2</sub> |
| title_sort | evaluation of aptes functionalized zinc oxide nanoparticles for adsorption of ch sub 4 sub and co sub 2 sub |
| topic | ZnONPs@APTES nanoparticles functionalization adsorption separation CH<sub>4</sub> CO<sub>2</sub> |
| url | https://www.mdpi.com/1420-3049/29/21/5219 |
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