Antibiotic Adsorption by Metal-Organic Framework (UiO-66): A Comprehensive Kinetic, Thermodynamic, and Mechanistic Study
Bacterial antibiotic resistance has been deemed one of the largest modern threats to human health. One of the root causes of antibiotic resistance is the inability of traditional wastewater management techniques, such as filtration and disinfection, to completely eliminate residual antibiotics from...
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doaj-3dd2c008988145c3bf59d8b8a1568bd32020-11-25T03:36:28ZengMDPI AGAntibiotics2079-63822020-10-01972272210.3390/antibiotics9100722Antibiotic Adsorption by Metal-Organic Framework (UiO-66): A Comprehensive Kinetic, Thermodynamic, and Mechanistic StudyMossab K. Alsaedi0Ghada K. Alothman1Mohammed N. Alnajrani2Omar A. Alsager3Sultan A. Alshmimri4Majed A. Alharbi5Majed O. Alawad6Shahad Alhadlaq7Seetah Alharbi8Center of Excellence for Nanomaterials for Clean Energy Applications, Joint Centers of Excellence, King Abdulaziz City for Science and Technology, Riyadh 12345, Saudi ArabiaCenter of Excellence for Nanomaterials for Clean Energy Applications, Joint Centers of Excellence, King Abdulaziz City for Science and Technology, Riyadh 12345, Saudi ArabiaNational Center for Radioisotopes Technology, Nuclear Science Research Institute, King Abdulaziz City for Science and Technology, Riyadh 12345, Saudi ArabiaNational Center for Radioisotopes Technology, Nuclear Science Research Institute, King Abdulaziz City for Science and Technology, Riyadh 12345, Saudi ArabiaCenter of Excellence for Nanomaterials for Clean Energy Applications, Joint Centers of Excellence, King Abdulaziz City for Science and Technology, Riyadh 12345, Saudi ArabiaCenter of Excellence for Nanomaterials for Clean Energy Applications, Joint Centers of Excellence, King Abdulaziz City for Science and Technology, Riyadh 12345, Saudi ArabiaCenter of Excellence for Nanomaterials for Clean Energy Applications, Joint Centers of Excellence, King Abdulaziz City for Science and Technology, Riyadh 12345, Saudi ArabiaCenter of Excellence for Nanomaterials for Clean Energy Applications, Joint Centers of Excellence, King Abdulaziz City for Science and Technology, Riyadh 12345, Saudi ArabiaCenter of Excellence for Nanomaterials for Clean Energy Applications, Joint Centers of Excellence, King Abdulaziz City for Science and Technology, Riyadh 12345, Saudi ArabiaBacterial antibiotic resistance has been deemed one of the largest modern threats to human health. One of the root causes of antibiotic resistance is the inability of traditional wastewater management techniques, such as filtration and disinfection, to completely eliminate residual antibiotics from domestic and industrial effluents. In this study, we examine the ability of <i>UiO-66</i>; a metal-organic framework (MOF); in removing the antibiotic Doxycycline from aqueous environments. This study’s findings suggest that UiO-66 was able to remove nearly 90% of the initial Doxycycline concentration. To correlate the isothermal data, Langmuir and Freundlich models were used. It was determined that the Langmuir model was best suited. Pseudo-first and -second order models were examined for kinetic data, where the pseudo-second order model was best suited—consistent with the maximum theoretical adsorption capacity found by the Langumir model. Thermodynamic analysis was also examined by studying UiO-66 adsorption under different temperatures. Mechanisms of adsorption were also analyzed through measuring adsorption at varying pH levels, thermogravimetric analysis (TGA), Infrared spectroscopy (IR) and Brunauer–Emmet–Teller (BET). This study also explores the possibility of recycling MOFs through exposure to gamma radiation, heat, and heating under low pressure, in order for UiO-66 to be used in multiple, consecutive cycles of Doxycycline removal.https://www.mdpi.com/2079-6382/9/10/722metal-organic frameworksantibioticswater treatmentcontaminants removalrecycling |
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DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Mossab K. Alsaedi Ghada K. Alothman Mohammed N. Alnajrani Omar A. Alsager Sultan A. Alshmimri Majed A. Alharbi Majed O. Alawad Shahad Alhadlaq Seetah Alharbi |
spellingShingle |
Mossab K. Alsaedi Ghada K. Alothman Mohammed N. Alnajrani Omar A. Alsager Sultan A. Alshmimri Majed A. Alharbi Majed O. Alawad Shahad Alhadlaq Seetah Alharbi Antibiotic Adsorption by Metal-Organic Framework (UiO-66): A Comprehensive Kinetic, Thermodynamic, and Mechanistic Study Antibiotics metal-organic frameworks antibiotics water treatment contaminants removal recycling |
author_facet |
Mossab K. Alsaedi Ghada K. Alothman Mohammed N. Alnajrani Omar A. Alsager Sultan A. Alshmimri Majed A. Alharbi Majed O. Alawad Shahad Alhadlaq Seetah Alharbi |
author_sort |
Mossab K. Alsaedi |
title |
Antibiotic Adsorption by Metal-Organic Framework (UiO-66): A Comprehensive Kinetic, Thermodynamic, and Mechanistic Study |
title_short |
Antibiotic Adsorption by Metal-Organic Framework (UiO-66): A Comprehensive Kinetic, Thermodynamic, and Mechanistic Study |
title_full |
Antibiotic Adsorption by Metal-Organic Framework (UiO-66): A Comprehensive Kinetic, Thermodynamic, and Mechanistic Study |
title_fullStr |
Antibiotic Adsorption by Metal-Organic Framework (UiO-66): A Comprehensive Kinetic, Thermodynamic, and Mechanistic Study |
title_full_unstemmed |
Antibiotic Adsorption by Metal-Organic Framework (UiO-66): A Comprehensive Kinetic, Thermodynamic, and Mechanistic Study |
title_sort |
antibiotic adsorption by metal-organic framework (uio-66): a comprehensive kinetic, thermodynamic, and mechanistic study |
publisher |
MDPI AG |
series |
Antibiotics |
issn |
2079-6382 |
publishDate |
2020-10-01 |
description |
Bacterial antibiotic resistance has been deemed one of the largest modern threats to human health. One of the root causes of antibiotic resistance is the inability of traditional wastewater management techniques, such as filtration and disinfection, to completely eliminate residual antibiotics from domestic and industrial effluents. In this study, we examine the ability of <i>UiO-66</i>; a metal-organic framework (MOF); in removing the antibiotic Doxycycline from aqueous environments. This study’s findings suggest that UiO-66 was able to remove nearly 90% of the initial Doxycycline concentration. To correlate the isothermal data, Langmuir and Freundlich models were used. It was determined that the Langmuir model was best suited. Pseudo-first and -second order models were examined for kinetic data, where the pseudo-second order model was best suited—consistent with the maximum theoretical adsorption capacity found by the Langumir model. Thermodynamic analysis was also examined by studying UiO-66 adsorption under different temperatures. Mechanisms of adsorption were also analyzed through measuring adsorption at varying pH levels, thermogravimetric analysis (TGA), Infrared spectroscopy (IR) and Brunauer–Emmet–Teller (BET). This study also explores the possibility of recycling MOFs through exposure to gamma radiation, heat, and heating under low pressure, in order for UiO-66 to be used in multiple, consecutive cycles of Doxycycline removal. |
topic |
metal-organic frameworks antibiotics water treatment contaminants removal recycling |
url |
https://www.mdpi.com/2079-6382/9/10/722 |
work_keys_str_mv |
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