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Surface Modification of Graphene Oxide for Fast Removal of Per- and Polyfluoroalkyl Substances (PFAS) Mixtures from River Water.
Pervez, Md Nahid; Jiang, Tao; Mahato, Jaydev Kumar; Ilango, Aswin Kumar; Kumaran, Yamini; Zuo, Yuwei; Zhang, Weilan; Efstathiadis, Haralabos; Feldblyum, Jeremy I; Yigit, Mehmet V; Liang, Yanna.
Afiliación
  • Pervez MN; Department of Environmental and Sustainable Engineering, University at Albany, State University of New York, Albany, New York 12222, United States.
  • Jiang T; Department of Environmental and Sustainable Engineering, University at Albany, State University of New York, Albany, New York 12222, United States.
  • Mahato JK; Department of Environmental and Sustainable Engineering, University at Albany, State University of New York, Albany, New York 12222, United States.
  • Ilango AK; Department of Environmental and Sustainable Engineering, University at Albany, State University of New York, Albany, New York 12222, United States.
  • Kumaran Y; Department of Nanoscale Science and Engineering, University at Albany, State University of New York, Albany, New York 12222, United States.
  • Zuo Y; Department of Environmental and Sustainable Engineering, University at Albany, State University of New York, Albany, New York 12222, United States.
  • Zhang W; Department of Environmental and Sustainable Engineering, University at Albany, State University of New York, Albany, New York 12222, United States.
  • Efstathiadis H; Department of Nanoscale Science and Engineering, University at Albany, State University of New York, Albany, New York 12222, United States.
  • Feldblyum JI; Department of Chemistry, University at Albany, State University of New York, Albany, New York 12222, United States.
  • Yigit MV; Department of Chemistry, University at Albany, State University of New York, Albany, New York 12222, United States.
  • Liang Y; Department of Environmental and Sustainable Engineering, University at Albany, State University of New York, Albany, New York 12222, United States.
ACS ES T Water ; 4(7): 2968-2980, 2024 Jul 12.
Article en En | MEDLINE | ID: mdl-39021580
ABSTRACT
Per- and polyfluoroalkyl substances (PFAS) make up a diverse group of industrially derived organic chemicals that are of significant concern due to their detrimental effects on human health and ecosystems. Although other technologies are available for removing PFAS, adsorption remains a viable and effective method. Accordingly, the current study reported a novel type of graphene oxide (GO)-based adsorbent and tested their removal performance toward removing PFAS from water. Among the eight adsorbents tested, GO modified by a cationic surfactant, cetyltrimethylammonium chloride (CTAC), GO-CTAC was found to be the best, showing an almost 100% removal for all 11 PFAS tested. The adsorption kinetics were best described by the pseudo-second-order model, indicating rapid adsorption. The isotherm data were well supported by the Toth model, suggesting that PFAS adsorption onto GO-CTAC involved complex interactions. Detailed characterization using scanning electron microscopy-energy dispersive X-ray spectroscopy, Fourier transform infrared, thermogravimetric analysis, X-ray diffraction, and X-ray photoelectron spectroscopy confirmed the proposed adsorption mechanisms, including electrostatic and hydrophobic interactions. Interestingly, the performance of GO-CTAC was not influenced by the solution pH, ionic strength, or natural organic matter. Furthermore, the removal efficiency of PFAS at almost 100% in river water demonstrated that GO-CTAC could be a suitable adsorbent for capturing PFAS in real surface water.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: ACS ES T Water Año: 2024 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Estados Unidos
Texto completo
Añadir a Mi BVS
Imprimir
XML
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: ACS ES T Water Año: 2024 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Estados Unidos