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Yu H, Chen H, Fang B, Sun H. Sorptive removal of per- and polyfluoroalkyl substances from aqueous solution: Enhanced sorption, challenges and perspectives. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 861:160647. [PMID: 36460105 DOI: 10.1016/j.scitotenv.2022.160647] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/25/2022] [Revised: 11/25/2022] [Accepted: 11/28/2022] [Indexed: 06/17/2023]
Abstract
Per- and polyfluoroalkyl substances (PFASs) have garnered attention globally given their ubiquitous occurrence, toxicity, bioaccumulative potential, and environmental persistence. Sorption is widely used to remove PFASs given its simplicity and cost-effectiveness. This article reviews recently fabricated sorbents, including carbon materials, minerals, polymers, and composite materials. The characteristics and interactions of the sorbents with PFASs are discussed to better understand sorptive processes. Various sorbents have exhibited high removal rates for legacy perfluorooctanoic acid (PFOA) and perfluorooctanesulfonic acid (PFOS). Novel polymers with special design better remove long- and short-chain PFASs than other sorbents. Although hydrophobic and electrostatic interactions mainly drive the sorption of anionic, cationic, and zwitterionic PFASs, enhancing PFAS sorption on designed sorbents has mainly depended on improving electrostatic interactions. Pearson correlation analysis showed that PFOS sorption capacity of sorbents is positively correlated with their specific surface area. Newly discovered pathways, including the air-water interfacial adsorption, F-F fluorophilic interactions, and (hemi) micelle formation, can enhance PFAS sorption to a certain extent. In addition to PFOA and PFOS, the sorption of emerging PFASs, including aqueous film-forming foam-relevant PFASs, constitutes a new research direction. The functionalization methods for enhancing PFAS sorption and challenges of PFAS sorption are also discussed to provide scope for future research. The discussions herein may contribute to developing efficient sorption technologies to remove PFASs.
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Affiliation(s)
- Hao Yu
- MOE Key Laboratory of Pollution Processes and Environmental Criteria, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China
| | - Hao Chen
- MOE Key Laboratory of Pollution Processes and Environmental Criteria, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China
| | - Bo Fang
- MOE Key Laboratory of Pollution Processes and Environmental Criteria, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China
| | - Hongwen Sun
- MOE Key Laboratory of Pollution Processes and Environmental Criteria, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China.
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Manning IM, Guan Pin Chew N, Macdonald HP, Miller KE, Strynar MJ, Coronell O, Leibfarth FA. Hydrolytically Stable Ionic Fluorogels for High-Performance Remediation of Per- and Polyfluoroalkyl Substances (PFAS) from Natural Water. Angew Chem Int Ed Engl 2022; 61:e202208150. [PMID: 35945652 PMCID: PMC9711936 DOI: 10.1002/anie.202208150] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2022] [Indexed: 01/11/2023]
Abstract
PFAS are known bioaccumulative and persistent chemicals which pollute natural waters globally. There exists a lack of granular sorbents to efficiently remove both legacy and emerging PFAS at environmentally relevant concentrations. Herein, we report a class of polymer networks with a synergistic combination of ionic and fluorous components that serve as granular materials for the removal of anionic PFAS from water. A library of Ionic Fluorogels (IFs) with systematic variation in charge density and polymer network architecture was synthesized from hydrolytically stable fluorous building blocks. The IFs were demonstrated as effective sorbents for the removal of 21 legacy and emerging PFAS from a natural water and were regenerable over multiple cycles of reuse. Comparison of one IF to a commercial ion exchange resin in mini-rapid small-scale column tests demonstrated superior performance for the removal of short-chain PFAS from natural water under operationally relevant conditions.
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Affiliation(s)
- Irene M. Manning
- Department of ChemistryUniversity of North Carolina at Chapel Hill131 South RdChapel HillNC 27599USA
| | - Nick Guan Pin Chew
- Department of Environmental Sciences and EngineeringGillings School of Global Public HealthUniversity of North Carolina at Chapel Hill135 Dauer DrChapel HillNC 27599USA
| | - Haley P. Macdonald
- Department of Environmental Sciences and EngineeringGillings School of Global Public HealthUniversity of North Carolina at Chapel Hill135 Dauer DrChapel HillNC 27599USA
| | - Kelsey E. Miller
- Office of Research and DevelopmentCenter for Environmental Measurement and ModelingU.S. Environmental Protection AgencyResearch Triangle ParkNC 27709USA
| | - Mark J. Strynar
- Office of Research and DevelopmentCenter for Environmental Measurement and ModelingU.S. Environmental Protection AgencyResearch Triangle ParkNC 27709USA
| | - Orlando Coronell
- Department of Environmental Sciences and EngineeringGillings School of Global Public HealthUniversity of North Carolina at Chapel Hill135 Dauer DrChapel HillNC 27599USA
| | - Frank A. Leibfarth
- Department of ChemistryUniversity of North Carolina at Chapel Hill131 South RdChapel HillNC 27599USA
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Manning IM, Chew NGP, Macdonald HP, Miller KE, Strynar MJ, Coronell O, Leibfarth F. Hydrolytically Stable Ionic Fluorogels for High‐Performance Remediation of Per‐ and Polyfluoroalkyl Substances (PFAS) from Natural Water. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202208150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Irene M Manning
- University of North Carolina at Chapel Hill Kenan Science Library: The University of North Carolina at Chapel Hill Chemistry 27599 Chapel Hill UNITED STATES
| | - Nick Guan Pin Chew
- University of North Carolina at Chapel Hill Kenan Science Library: The University of North Carolina at Chapel Hill Environmental Sciences and Engineering UNITED STATES
| | - Haley P Macdonald
- University of North Carolina at Chapel Hill Kenan Science Library: The University of North Carolina at Chapel Hill Environmental Sciences and Engineering UNITED STATES
| | - Kelsey E Miller
- Environmental Protection Agency Office of Research and Development, Center for Environmental Measurement and Modeling UNITED STATES
| | - Mark J Strynar
- Environmental Protection Agency Office of Research and Development, Center for Environmental Measurement and Modeling UNITED STATES
| | - Orlando Coronell
- University of North Carolina at Chapel Hill Kenan Science Library: The University of North Carolina at Chapel Hill Environmental Sciences and Engineering UNITED STATES
| | - Frank Leibfarth
- University of North Carolina Chemistry University of North CarolinaKenan Labs A500 27599 Chapel Hill UNITED STATES
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Hwang JH, Li Sip YY, Kim KT, Han G, Rodriguez KL, Fox DW, Afrin S, Burnstine-Townley A, Zhai L, Lee WH. Nanoparticle-embedded hydrogel synthesized electrodes for electrochemical oxidation of perfluorooctanoic acid (PFOA) and perfluorooctanesulfonic acid (PFOS). CHEMOSPHERE 2022; 296:134001. [PMID: 35181416 DOI: 10.1016/j.chemosphere.2022.134001] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Revised: 02/11/2022] [Accepted: 02/13/2022] [Indexed: 06/14/2023]
Abstract
In this study, sliver (Ag) and gold (Au) nanoparticles (NPs) were embedded on poly (acrylic acid) (PAA)/poly (allylamine) hydrochloride (PAH) hydrogel fibers for improved electrochemical oxidation (EO) of perfluorooctanoic acid (PFOA) and perfluorooctanesulfonic acid (PFOS) removal. The NPs-loaded PAA/PAHs shows the better charge transport compared to the ceramic nanofiber membranes (CNM) electrodes. At 10 mA cm-2 of current density, the Ag-PAA/PAH electrodes showed a faster removal of PFAS compared to the Ag-CNM electrode probably due to large surface area-volume ratio and high porosity from the hydrogel. Among NPs-loaded PAA/PAH electrodes, the Ag/Au-PAA/PAH electrodes showed the highest removal of PFOA (72%) and PFOS (91%) in 2 h with the maximum removal rate of PFOA (0.0046 min-1) and PFOS (0.0093 min-1). The rapid PFOS removal is possibly due to the high activity of electron transfer with a higher redox potential of SO4•- than •OH. The highly stable F- generation was obtained from each electrode during reproducibility (n = 3). The net energy consumption from Ag/Au-PAA/PAH electrode was 164.9 kWh m-3 for 72% PFOA removal and 90 kWh m-3 for 91% PFOS removal, respectively. The developed Au-PAA/PAH electrodes were applied to lake water samples and showed acceptable PFOS removal (65%) with relative standard deviations (RSD) of 10.2% (n = 3) at 10 mA cm-2 of current density. Overall, the NP-embedded hydrogel nanofibers were proven to be a promising sustainable catalyst for the electrochemical PFAS oxidation in water.
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Affiliation(s)
- Jae-Hoon Hwang
- Department of Civil, Environmental, And Construction Engineering, University of Central Florida, Orlando, FL, 32816, USA
| | - Yuen Yee Li Sip
- NanoScience Technology Center and Department of Chemistry, University of Central Florida, Orlando, FL, 32816, USA
| | - Keug Tae Kim
- Department of Environmental & Energy Engineering, The University of Suwon, 17 Wauan-gil, Bongdam-eup, Hwaseong-si, Gyeonggi-do, 18323, South Korea
| | - Gaehee Han
- Water Quality Research Center, Waterworks Headquarters of Daegu Metropolitan City, Daegu, 42423, South Korea
| | - Kelsey L Rodriguez
- Department of Civil, Environmental, And Construction Engineering, University of Central Florida, Orlando, FL, 32816, USA
| | - David W Fox
- NanoScience Technology Center and Department of Chemistry, University of Central Florida, Orlando, FL, 32816, USA
| | - Sajia Afrin
- NanoScience Technology Center and Department of Chemistry, University of Central Florida, Orlando, FL, 32816, USA
| | - Alex Burnstine-Townley
- NanoScience Technology Center and Department of Chemistry, University of Central Florida, Orlando, FL, 32816, USA
| | - Lei Zhai
- NanoScience Technology Center and Department of Chemistry, University of Central Florida, Orlando, FL, 32816, USA
| | - Woo Hyoung Lee
- Department of Civil, Environmental, And Construction Engineering, University of Central Florida, Orlando, FL, 32816, USA.
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Machine learning-based modeling and analysis of PFOS removal from contaminated water by nanofiltration process. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.120775] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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Zhang C, Yan K, Fu C, Peng H, Hawker CJ, Whittaker AK. Biological Utility of Fluorinated Compounds: from Materials Design to Molecular Imaging, Therapeutics and Environmental Remediation. Chem Rev 2022; 122:167-208. [PMID: 34609131 DOI: 10.1021/acs.chemrev.1c00632] [Citation(s) in RCA: 117] [Impact Index Per Article: 58.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
The applications of fluorinated molecules in bioengineering and nanotechnology are expanding rapidly with the controlled introduction of fluorine being broadly studied due to the unique properties of C-F bonds. This review will focus on the design and utility of C-F containing materials in imaging, therapeutics, and environmental applications with a central theme being the importance of controlling fluorine-fluorine interactions and understanding how such interactions impact biological behavior. Low natural abundance of fluorine is shown to provide sensitivity and background advantages for imaging and detection of a variety of diseases with 19F magnetic resonance imaging, 18F positron emission tomography and ultrasound discussed as illustrative examples. The presence of C-F bonds can also be used to tailor membrane permeability and pharmacokinetic properties of drugs and delivery agents for enhanced cell uptake and therapeutics. A key message of this review is that while the promise of C-F containing materials is significant, a subset of highly fluorinated compounds such as per- and polyfluoroalkyl substances (PFAS), have been identified as posing a potential risk to human health. The unique properties of the C-F bond and the significant potential for fluorine-fluorine interactions in PFAS structures necessitate the development of new strategies for facile and efficient environmental removal and remediation. Recent progress in the development of fluorine-containing compounds as molecular imaging and therapeutic agents will be reviewed and their design features contrasted with environmental and health risks for PFAS systems. Finally, present challenges and future directions in the exploitation of the biological aspects of fluorinated systems will be described.
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Affiliation(s)
- Cheng Zhang
- Australian Institute for Bioengineering and Nanotechnology, University of Queensland, Brisbane, Queensland 4072, Australia
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, University of Queensland, Brisbane, Queensland 4072, Australia
- Materials Research Laboratory, University of California, Santa Barbara, California 93106, United States
| | - Kai Yan
- College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science and Technology, Xi'an 710021, China
- National Demonstration Center for Experimental Light Chemistry Engineering Education, Shaanxi University of Science and Technology, Xi'an 710021, China
- Xi'an Key Laboratory of Green Chemicals and Functional Materials, Shaanxi University of Science and Technology, Xi'an 710021, China
| | - Changkui Fu
- Australian Institute for Bioengineering and Nanotechnology, University of Queensland, Brisbane, Queensland 4072, Australia
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, University of Queensland, Brisbane, Queensland 4072, Australia
| | - Hui Peng
- Australian Institute for Bioengineering and Nanotechnology, University of Queensland, Brisbane, Queensland 4072, Australia
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, University of Queensland, Brisbane, Queensland 4072, Australia
| | - Craig J Hawker
- Materials Research Laboratory, University of California, Santa Barbara, California 93106, United States
- Materials Department, University of California, Santa Barbara, California 93106, United States
- Department of Chemistry & Biochemistry, University of California, Santa Barbara, California 93106, United States
| | - Andrew K Whittaker
- Australian Institute for Bioengineering and Nanotechnology, University of Queensland, Brisbane, Queensland 4072, Australia
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, University of Queensland, Brisbane, Queensland 4072, Australia
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Sequestration of poly- and perfluoroalkyl substances (PFAS) by adsorption: surfactant and surface aspects. Curr Opin Colloid Interface Sci 2022. [DOI: 10.1016/j.cocis.2022.101571] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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