Removal of Tetracycline Pollutants by Adsorption and Magnetic Separation Using Reduced Graphene Oxide Decorated with α-Fe2O3 Nanoparticles
Nanocomposites of reduced graphene oxide (RGO) with ferromagnetic α-Fe2O3 nanoparticles have been prepared in-situ by thermal treatment. The structure and morphology of the hybrid material were studied by X-ray photoelectron spectroscopy, Raman, X-ray diffraction, and transmission electron microscop...
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| Format: | Article |
| Language: | English |
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Molecular Diversity Preservation International
2019
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| Online Access: | http://eprints.uanl.mx/23371/1/23371.pdf |
| _version_ | 1824416857300402176 |
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| author | Huizar Félix, Adriana Magdalena Aguilar Flores, Celia Martínez de la Cruz, Azael Barandiarán, José Miguel Sepúlveda Guzmán, Selene Cruz Silva, Rodolfo |
| author_facet | Huizar Félix, Adriana Magdalena Aguilar Flores, Celia Martínez de la Cruz, Azael Barandiarán, José Miguel Sepúlveda Guzmán, Selene Cruz Silva, Rodolfo |
| author_sort | Huizar Félix, Adriana Magdalena |
| collection | Repositorio Institucional |
| description | Nanocomposites of reduced graphene oxide (RGO) with ferromagnetic α-Fe2O3 nanoparticles have been prepared in-situ by thermal treatment. The structure and morphology of the hybrid material were studied by X-ray photoelectron spectroscopy, Raman, X-ray diffraction, and transmission electron microscopy. The results show a hybrid material highly modified with α-Fe2O3 nanoparticles distributed on the graphene surface. The adsorption kinetics show the presence of α-Fe2O3 nanoparticles on the RGO surface, and the amount of remaining functional groups dominated by ionization and dispersion. The adsorption kinetics of this adsorbent was characterized and found to fit the pseudo-second-order model. The α-Fe2O3 nanoparticles on RGO modify the electrostatic interaction of RGO layers and tetracycline, and adsorption properties decreased in the hybrid material. Adsorption isotherms fit with the Langmuir model very well, and the maximum capacity adsorption was 44.23 mg/g for RGO and 18.47 mg/g for the hybrid material. Magnetic characterization of the hybrid material shows ferromagnetic behavior due to the nanosize of α-Fe2O3 with a saturation magnetization, Ms = 7.15 Am2/kg, a remanence Mr = 2.29 Am2/kg, and a coercive field, Hc = 0.02 T. |
| format | Article |
| id | eprints-23371 |
| institution | UANL |
| language | English |
| publishDate | 2019 |
| publisher | Molecular Diversity Preservation International |
| record_format | eprints |
| spelling | eprints-233712022-06-07T20:47:01Z http://eprints.uanl.mx/23371/ Removal of Tetracycline Pollutants by Adsorption and Magnetic Separation Using Reduced Graphene Oxide Decorated with α-Fe2O3 Nanoparticles Huizar Félix, Adriana Magdalena Aguilar Flores, Celia Martínez de la Cruz, Azael Barandiarán, José Miguel Sepúlveda Guzmán, Selene Cruz Silva, Rodolfo TP Tecnología Química Nanocomposites of reduced graphene oxide (RGO) with ferromagnetic α-Fe2O3 nanoparticles have been prepared in-situ by thermal treatment. The structure and morphology of the hybrid material were studied by X-ray photoelectron spectroscopy, Raman, X-ray diffraction, and transmission electron microscopy. The results show a hybrid material highly modified with α-Fe2O3 nanoparticles distributed on the graphene surface. The adsorption kinetics show the presence of α-Fe2O3 nanoparticles on the RGO surface, and the amount of remaining functional groups dominated by ionization and dispersion. The adsorption kinetics of this adsorbent was characterized and found to fit the pseudo-second-order model. The α-Fe2O3 nanoparticles on RGO modify the electrostatic interaction of RGO layers and tetracycline, and adsorption properties decreased in the hybrid material. Adsorption isotherms fit with the Langmuir model very well, and the maximum capacity adsorption was 44.23 mg/g for RGO and 18.47 mg/g for the hybrid material. Magnetic characterization of the hybrid material shows ferromagnetic behavior due to the nanosize of α-Fe2O3 with a saturation magnetization, Ms = 7.15 Am2/kg, a remanence Mr = 2.29 Am2/kg, and a coercive field, Hc = 0.02 T. Molecular Diversity Preservation International 2019 Article PeerReviewed text en cc_by_nc_nd http://eprints.uanl.mx/23371/1/23371.pdf http://eprints.uanl.mx/23371/1.haspreviewThumbnailVersion/23371.pdf Huizar Félix, Adriana Magdalena y Aguilar Flores, Celia y Martínez de la Cruz, Azael y Barandiarán, José Miguel y Sepúlveda Guzmán, Selene y Cruz Silva, Rodolfo (2019) Removal of Tetracycline Pollutants by Adsorption and Magnetic Separation Using Reduced Graphene Oxide Decorated with α-Fe2O3 Nanoparticles. Nanomaterials, 9 (3). pp. 1-14. ISSN 2079-4991 http://doi.org/10.3390/nano9030313 doi:10.3390/nano9030313 |
| spellingShingle | TP Tecnología Química Huizar Félix, Adriana Magdalena Aguilar Flores, Celia Martínez de la Cruz, Azael Barandiarán, José Miguel Sepúlveda Guzmán, Selene Cruz Silva, Rodolfo Removal of Tetracycline Pollutants by Adsorption and Magnetic Separation Using Reduced Graphene Oxide Decorated with α-Fe2O3 Nanoparticles |
| thumbnail | https://rediab.uanl.mx/themes/sandal5/images/online.png |
| title | Removal of Tetracycline Pollutants by Adsorption and Magnetic Separation Using Reduced Graphene Oxide Decorated with α-Fe2O3 Nanoparticles |
| title_full | Removal of Tetracycline Pollutants by Adsorption and Magnetic Separation Using Reduced Graphene Oxide Decorated with α-Fe2O3 Nanoparticles |
| title_fullStr | Removal of Tetracycline Pollutants by Adsorption and Magnetic Separation Using Reduced Graphene Oxide Decorated with α-Fe2O3 Nanoparticles |
| title_full_unstemmed | Removal of Tetracycline Pollutants by Adsorption and Magnetic Separation Using Reduced Graphene Oxide Decorated with α-Fe2O3 Nanoparticles |
| title_short | Removal of Tetracycline Pollutants by Adsorption and Magnetic Separation Using Reduced Graphene Oxide Decorated with α-Fe2O3 Nanoparticles |
| title_sort | removal of tetracycline pollutants by adsorption and magnetic separation using reduced graphene oxide decorated with α fe2o3 nanoparticles |
| topic | TP Tecnología Química |
| url | http://eprints.uanl.mx/23371/1/23371.pdf |
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