Graphene oxide/MIL 101(Cr) (GO/MOF) nano-composite for adsorptive removal of 2,4-dichlorophenoxyacetic acid (2,4 D) from aqueous media: synthesis, characterization, kinetic and isotherm studies
Contamination of water resources with various pollutants and therefore lack of clean water resources are major problems that threaten many human societies. The need to develop efficient methods and materials to decontaminate water resource is an undeniable fact. Metal-organic frameworks (MOFs), as n...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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IWA Publishing
2022-09-01
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| Series: | Water Science and Technology |
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| Online Access: | http://wst.iwaponline.com/content/86/6/1496 |
| _version_ | 1797991331404972032 |
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| author | Shokooh Sadat Khaloo Amin Bagheri Reza Gholamnia Reza Saeedi |
| author_facet | Shokooh Sadat Khaloo Amin Bagheri Reza Gholamnia Reza Saeedi |
| author_sort | Shokooh Sadat Khaloo |
| collection | DOAJ |
| description | Contamination of water resources with various pollutants and therefore lack of clean water resources are major problems that threaten many human societies. The need to develop efficient methods and materials to decontaminate water resource is an undeniable fact. Metal-organic frameworks (MOFs), as new class of highly crystalline porous solids, have attracted a great deal of attention in different research fields, especially in adsorptive removal and purification. In this study, MIL 101(Cr) MOF decorated with graphene oxide nano-layers (GO/MOF) was synthesized by a simple one-pot hydrothermal method. Scanning electron microscopy (SEM), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR) and electron dispersion energy (EDS) were utilized to approve the growing of Cr-MOF on graphene oxide nano-layer. The synthesized nano-composite was used as a potential adsorbent for the removal of a pesticide, 2, 4-dichlorophenoxyacetic acid (2,4 D). The adsorption performance, kinetic and mechanism of 2,4 D adsorption onto GO/MOF were studied. The highest adsorption capacities of 476.9 mg g−1 was obtained at room temperature, pH 6.0 using 0.6 gL−1 of GO/MOF which was 34% higher than that of pristine Cr-MOF. The kinetics and isotherm data fitted well with pseudo-second kinetic and Langmuir isotherm model, respectively. The reusability and stability analyses showed that the synthesized GO/MOF nanocomposite kept 89% of sorption capacities for 2,4 D after four adsorption–desorption cycles. GO/MOF nano-composite was successfully applied to remove 2,4 D from agricultural waste. The results approved that the synthesized nano-composite could introduce as a stable and high performance adsorbent for adsorptive removal of selected pesticide.
HIGHLIGHTS
Graphene oxide nano-sheet decorated by MIL 101(Cr) has been synthesized by the hydrothermal method and characterized by SEM, EDS, XRD and FT-IR technology.;
Adsorption kinetic, isotherm, reusability and stability of the nano-composite GO/MOF (Cr) in removal of 2,4 D pesticide were studied.;
Applicability of the nano-composite GO/MOF (Cr) in removal of 2,4 D pesticide in agricultural wastewater was approved.; |
| first_indexed | 2024-04-11T08:50:26Z |
| format | Article |
| id | doaj.art-241d137a71d34386891390a2b933e16f |
| institution | Directory Open Access Journal |
| issn | 0273-1223 1996-9732 |
| language | English |
| last_indexed | 2024-04-11T08:50:26Z |
| publishDate | 2022-09-01 |
| publisher | IWA Publishing |
| record_format | Article |
| series | Water Science and Technology |
| spelling | doaj.art-241d137a71d34386891390a2b933e16f2022-12-22T04:33:35ZengIWA PublishingWater Science and Technology0273-12231996-97322022-09-018661496150910.2166/wst.2022.282282Graphene oxide/MIL 101(Cr) (GO/MOF) nano-composite for adsorptive removal of 2,4-dichlorophenoxyacetic acid (2,4 D) from aqueous media: synthesis, characterization, kinetic and isotherm studiesShokooh Sadat Khaloo0Amin Bagheri1Reza Gholamnia2Reza Saeedi3 Workplace Health Promotion Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran Department of Health, Safety, and Environment, School of Public Health and Safety, Shahid Beheshti University of Medical Sciences, Tehran, Iran Department of Health, Safety, and Environment, School of Public Health and Safety, Shahid Beheshti University of Medical Sciences, Tehran, Iran Workplace Health Promotion Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran Contamination of water resources with various pollutants and therefore lack of clean water resources are major problems that threaten many human societies. The need to develop efficient methods and materials to decontaminate water resource is an undeniable fact. Metal-organic frameworks (MOFs), as new class of highly crystalline porous solids, have attracted a great deal of attention in different research fields, especially in adsorptive removal and purification. In this study, MIL 101(Cr) MOF decorated with graphene oxide nano-layers (GO/MOF) was synthesized by a simple one-pot hydrothermal method. Scanning electron microscopy (SEM), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR) and electron dispersion energy (EDS) were utilized to approve the growing of Cr-MOF on graphene oxide nano-layer. The synthesized nano-composite was used as a potential adsorbent for the removal of a pesticide, 2, 4-dichlorophenoxyacetic acid (2,4 D). The adsorption performance, kinetic and mechanism of 2,4 D adsorption onto GO/MOF were studied. The highest adsorption capacities of 476.9 mg g−1 was obtained at room temperature, pH 6.0 using 0.6 gL−1 of GO/MOF which was 34% higher than that of pristine Cr-MOF. The kinetics and isotherm data fitted well with pseudo-second kinetic and Langmuir isotherm model, respectively. The reusability and stability analyses showed that the synthesized GO/MOF nanocomposite kept 89% of sorption capacities for 2,4 D after four adsorption–desorption cycles. GO/MOF nano-composite was successfully applied to remove 2,4 D from agricultural waste. The results approved that the synthesized nano-composite could introduce as a stable and high performance adsorbent for adsorptive removal of selected pesticide. HIGHLIGHTS Graphene oxide nano-sheet decorated by MIL 101(Cr) has been synthesized by the hydrothermal method and characterized by SEM, EDS, XRD and FT-IR technology.; Adsorption kinetic, isotherm, reusability and stability of the nano-composite GO/MOF (Cr) in removal of 2,4 D pesticide were studied.; Applicability of the nano-composite GO/MOF (Cr) in removal of 2,4 D pesticide in agricultural wastewater was approved.;http://wst.iwaponline.com/content/86/6/149624 dgraphene oxidepesticidemetal organic frameworkremoval |
| spellingShingle | Shokooh Sadat Khaloo Amin Bagheri Reza Gholamnia Reza Saeedi Graphene oxide/MIL 101(Cr) (GO/MOF) nano-composite for adsorptive removal of 2,4-dichlorophenoxyacetic acid (2,4 D) from aqueous media: synthesis, characterization, kinetic and isotherm studies Water Science and Technology 2 4 d graphene oxide pesticide metal organic framework removal |
| title | Graphene oxide/MIL 101(Cr) (GO/MOF) nano-composite for adsorptive removal of 2,4-dichlorophenoxyacetic acid (2,4 D) from aqueous media: synthesis, characterization, kinetic and isotherm studies |
| title_full | Graphene oxide/MIL 101(Cr) (GO/MOF) nano-composite for adsorptive removal of 2,4-dichlorophenoxyacetic acid (2,4 D) from aqueous media: synthesis, characterization, kinetic and isotherm studies |
| title_fullStr | Graphene oxide/MIL 101(Cr) (GO/MOF) nano-composite for adsorptive removal of 2,4-dichlorophenoxyacetic acid (2,4 D) from aqueous media: synthesis, characterization, kinetic and isotherm studies |
| title_full_unstemmed | Graphene oxide/MIL 101(Cr) (GO/MOF) nano-composite for adsorptive removal of 2,4-dichlorophenoxyacetic acid (2,4 D) from aqueous media: synthesis, characterization, kinetic and isotherm studies |
| title_short | Graphene oxide/MIL 101(Cr) (GO/MOF) nano-composite for adsorptive removal of 2,4-dichlorophenoxyacetic acid (2,4 D) from aqueous media: synthesis, characterization, kinetic and isotherm studies |
| title_sort | graphene oxide mil 101 cr go mof nano composite for adsorptive removal of 2 4 dichlorophenoxyacetic acid 2 4 d from aqueous media synthesis characterization kinetic and isotherm studies |
| topic | 2 4 d graphene oxide pesticide metal organic framework removal |
| url | http://wst.iwaponline.com/content/86/6/1496 |
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