Synthesis and Characterization of Amorphous SiO<sub>2</sub>−Fe<sub>x</sub>O<sub>y</sub> Materials Starting from Iron Sulfate for Preliminary Studies of CO<sub>2</sub> Adsorption
The goal of this work is to investigate the effectiveness of amorphous SiO<sub>2</sub>−Fe<sub>x</sub>O<sub>y</sub> loaded by functionalization with Ce(SO<sub>4</sub>)<sub>2</sub>, Li<sub>2</sub>SO<sub>4</sub>, and 3-...
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MDPI AG
2023-06-01
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| author | Cătălin Ianăşi Bogdan Pascu Nicoleta Nemeş Alexandru Popa |
| author_facet | Cătălin Ianăşi Bogdan Pascu Nicoleta Nemeş Alexandru Popa |
| author_sort | Cătălin Ianăşi |
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| description | The goal of this work is to investigate the effectiveness of amorphous SiO<sub>2</sub>−Fe<sub>x</sub>O<sub>y</sub> loaded by functionalization with Ce(SO<sub>4</sub>)<sub>2</sub>, Li<sub>2</sub>SO<sub>4</sub>, and 3-aminopropyltriethoxysilane (APTES) for CO<sub>2</sub> adsorption. Silica and iron-based materials are gaining popularity due to their wide range of applications, such as catalysis, photocatalysis, imaging, etc.; however, there are very few studies regarding the adsorption of CO<sub>2</sub> with the aforementioned materials. In our study, we proposed to test their ability in this direction by adding cerium sulfate and lithium sulfate. Three base materials were obtained and characterized using XRD, FTIR, RAMAN, TG, SEM, and BET followed by their functionalization with amino groups by using of the APTES precursor. The SEM images indicate an increase in size, forming clusters from 100 nm for base materials to 500 nm for functionalized materials. The results indicate a maximum CO<sub>2</sub> adsorption of 1.58 mmol/g material for the SiO<sub>2</sub>−Fe<sub>x</sub>O<sub>y</sub>−Li−APTES sample. |
| first_indexed | 2024-03-11T01:56:15Z |
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| language | English |
| last_indexed | 2024-03-11T01:56:15Z |
| publishDate | 2023-06-01 |
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| spelling | doaj.art-acea9daebbef4f7ca98ca708a1c571fb2023-11-18T12:36:22ZengMDPI AGSeparations2297-87392023-06-0110635210.3390/separations10060352Synthesis and Characterization of Amorphous SiO<sub>2</sub>−Fe<sub>x</sub>O<sub>y</sub> Materials Starting from Iron Sulfate for Preliminary Studies of CO<sub>2</sub> AdsorptionCătălin Ianăşi0Bogdan Pascu1Nicoleta Nemeş2Alexandru Popa3Coriolan Drăgulescu” Institute of Chemistry, Bv. Mihai Viteazul, No. 24, 300223 Timişoara, RomaniaFaculty of Industrial Chemistry and Environmental Engineering, Politechnica University Timişoara, Victoriei Square, No. 2, 300006 Timişoara, RomaniaRenewable Energy Research Institute, Politehnica University Timişoara, 138 Gavril Musicescu Street, 300501 Timişoara, RomaniaCoriolan Drăgulescu” Institute of Chemistry, Bv. Mihai Viteazul, No. 24, 300223 Timişoara, RomaniaThe goal of this work is to investigate the effectiveness of amorphous SiO<sub>2</sub>−Fe<sub>x</sub>O<sub>y</sub> loaded by functionalization with Ce(SO<sub>4</sub>)<sub>2</sub>, Li<sub>2</sub>SO<sub>4</sub>, and 3-aminopropyltriethoxysilane (APTES) for CO<sub>2</sub> adsorption. Silica and iron-based materials are gaining popularity due to their wide range of applications, such as catalysis, photocatalysis, imaging, etc.; however, there are very few studies regarding the adsorption of CO<sub>2</sub> with the aforementioned materials. In our study, we proposed to test their ability in this direction by adding cerium sulfate and lithium sulfate. Three base materials were obtained and characterized using XRD, FTIR, RAMAN, TG, SEM, and BET followed by their functionalization with amino groups by using of the APTES precursor. The SEM images indicate an increase in size, forming clusters from 100 nm for base materials to 500 nm for functionalized materials. The results indicate a maximum CO<sub>2</sub> adsorption of 1.58 mmol/g material for the SiO<sub>2</sub>−Fe<sub>x</sub>O<sub>y</sub>−Li−APTES sample.https://www.mdpi.com/2297-8739/10/6/352carbon dioxide adsorptionmodified fibrous silicairon oxidecerium sulfatelithium sulfate3-aminopropyltriethoxysilane |
| spellingShingle | Cătălin Ianăşi Bogdan Pascu Nicoleta Nemeş Alexandru Popa Synthesis and Characterization of Amorphous SiO<sub>2</sub>−Fe<sub>x</sub>O<sub>y</sub> Materials Starting from Iron Sulfate for Preliminary Studies of CO<sub>2</sub> Adsorption Separations carbon dioxide adsorption modified fibrous silica iron oxide cerium sulfate lithium sulfate 3-aminopropyltriethoxysilane |
| title | Synthesis and Characterization of Amorphous SiO<sub>2</sub>−Fe<sub>x</sub>O<sub>y</sub> Materials Starting from Iron Sulfate for Preliminary Studies of CO<sub>2</sub> Adsorption |
| title_full | Synthesis and Characterization of Amorphous SiO<sub>2</sub>−Fe<sub>x</sub>O<sub>y</sub> Materials Starting from Iron Sulfate for Preliminary Studies of CO<sub>2</sub> Adsorption |
| title_fullStr | Synthesis and Characterization of Amorphous SiO<sub>2</sub>−Fe<sub>x</sub>O<sub>y</sub> Materials Starting from Iron Sulfate for Preliminary Studies of CO<sub>2</sub> Adsorption |
| title_full_unstemmed | Synthesis and Characterization of Amorphous SiO<sub>2</sub>−Fe<sub>x</sub>O<sub>y</sub> Materials Starting from Iron Sulfate for Preliminary Studies of CO<sub>2</sub> Adsorption |
| title_short | Synthesis and Characterization of Amorphous SiO<sub>2</sub>−Fe<sub>x</sub>O<sub>y</sub> Materials Starting from Iron Sulfate for Preliminary Studies of CO<sub>2</sub> Adsorption |
| title_sort | synthesis and characterization of amorphous sio sub 2 sub fe sub x sub o sub y sub materials starting from iron sulfate for preliminary studies of co sub 2 sub adsorption |
| topic | carbon dioxide adsorption modified fibrous silica iron oxide cerium sulfate lithium sulfate 3-aminopropyltriethoxysilane |
| url | https://www.mdpi.com/2297-8739/10/6/352 |
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