The Impact of Surface Chemistry and Synthesis Conditions on the Adsorption of Antibiotics onto MXene Membranes
MXene, a two-dimensional (2D) nanomaterial with diverse applications, has gained significant attention due to its 2D lamellar structure, abundance of surface groups, and conductivity. Despite various established synthesis methods since its discovery in 2011, MXenes produced through different approac...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-12-01
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| Series: | Molecules |
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| Online Access: | https://www.mdpi.com/1420-3049/29/1/148 |
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| author | Moyosore A. Afolabi Dequan Xiao Yongsheng Chen |
| author_facet | Moyosore A. Afolabi Dequan Xiao Yongsheng Chen |
| author_sort | Moyosore A. Afolabi |
| collection | DOAJ |
| description | MXene, a two-dimensional (2D) nanomaterial with diverse applications, has gained significant attention due to its 2D lamellar structure, abundance of surface groups, and conductivity. Despite various established synthesis methods since its discovery in 2011, MXenes produced through different approaches exhibit variations in structural and physicochemical characteristics, impacting their suitability for environmental application. This study delves into the effect of synthesis conditions on MXene properties and its adsorption capabilities for four commonly prescribed antibiotics. We utilized material characterization techniques to differentiate MXenes synthesized using three prevalent etchants: hydrofluoric acid (HF), mixed acids (HCl/HF), and fluoride salts (LiF/HCl). Our investigation of adsorption performance included isotherm and kinetic analysis, complemented by density functional theory calculations. The results of this research pinpointed LiF/HCl as an efficient etchant, yielding MXene with favorable morphology and surface chemistry. Electrostatic interactions and hydrogen bonding between MXene surface terminations and ionizable moieties of the antibiotic molecules emerge as pivotal factors in adsorption. Specifically, a higher presence of oxygen terminations increases the binding affinities. These findings provide valuable guidance for etchant selection in environmental applications and underscore the potential to tailor MXenes through synthesis conditions to design membranes capable of selectively removing antibiotics and other targeted substances. |
| first_indexed | 2024-03-08T15:01:46Z |
| format | Article |
| id | doaj.art-cafd01b2b7054716bb05d0ce6836ec06 |
| institution | Directory Open Access Journal |
| issn | 1420-3049 |
| language | English |
| last_indexed | 2024-03-08T15:01:46Z |
| publishDate | 2023-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Molecules |
| spelling | doaj.art-cafd01b2b7054716bb05d0ce6836ec062024-01-10T15:04:19ZengMDPI AGMolecules1420-30492023-12-0129114810.3390/molecules29010148The Impact of Surface Chemistry and Synthesis Conditions on the Adsorption of Antibiotics onto MXene MembranesMoyosore A. Afolabi0Dequan Xiao1Yongsheng Chen2School of Civil and Environmental Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USACenter for Integrative Materials Discovery, Department of Chemistry and Chemical & Biomedical Engineering, University of New Haven, West Haven, CT 06516, USASchool of Civil and Environmental Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USAMXene, a two-dimensional (2D) nanomaterial with diverse applications, has gained significant attention due to its 2D lamellar structure, abundance of surface groups, and conductivity. Despite various established synthesis methods since its discovery in 2011, MXenes produced through different approaches exhibit variations in structural and physicochemical characteristics, impacting their suitability for environmental application. This study delves into the effect of synthesis conditions on MXene properties and its adsorption capabilities for four commonly prescribed antibiotics. We utilized material characterization techniques to differentiate MXenes synthesized using three prevalent etchants: hydrofluoric acid (HF), mixed acids (HCl/HF), and fluoride salts (LiF/HCl). Our investigation of adsorption performance included isotherm and kinetic analysis, complemented by density functional theory calculations. The results of this research pinpointed LiF/HCl as an efficient etchant, yielding MXene with favorable morphology and surface chemistry. Electrostatic interactions and hydrogen bonding between MXene surface terminations and ionizable moieties of the antibiotic molecules emerge as pivotal factors in adsorption. Specifically, a higher presence of oxygen terminations increases the binding affinities. These findings provide valuable guidance for etchant selection in environmental applications and underscore the potential to tailor MXenes through synthesis conditions to design membranes capable of selectively removing antibiotics and other targeted substances.https://www.mdpi.com/1420-3049/29/1/148MXene membraneantibioticsadsorptionwater purificationdensity functional theory2D nanomaterials |
| spellingShingle | Moyosore A. Afolabi Dequan Xiao Yongsheng Chen The Impact of Surface Chemistry and Synthesis Conditions on the Adsorption of Antibiotics onto MXene Membranes Molecules MXene membrane antibiotics adsorption water purification density functional theory 2D nanomaterials |
| title | The Impact of Surface Chemistry and Synthesis Conditions on the Adsorption of Antibiotics onto MXene Membranes |
| title_full | The Impact of Surface Chemistry and Synthesis Conditions on the Adsorption of Antibiotics onto MXene Membranes |
| title_fullStr | The Impact of Surface Chemistry and Synthesis Conditions on the Adsorption of Antibiotics onto MXene Membranes |
| title_full_unstemmed | The Impact of Surface Chemistry and Synthesis Conditions on the Adsorption of Antibiotics onto MXene Membranes |
| title_short | The Impact of Surface Chemistry and Synthesis Conditions on the Adsorption of Antibiotics onto MXene Membranes |
| title_sort | impact of surface chemistry and synthesis conditions on the adsorption of antibiotics onto mxene membranes |
| topic | MXene membrane antibiotics adsorption water purification density functional theory 2D nanomaterials |
| url | https://www.mdpi.com/1420-3049/29/1/148 |
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