The DOI matches its Crossref record; 40 of the 41 references it cites were found in a registry or an index.
Comparison of the sorption behaviors and mechanisms of perfluorosulfonates and perfluorocarboxylic acids on three kinds of clay minerals
Abstract
The sorption of four perfluoroalkyl acids (PFAAs) [perfluorooctane sulfonate (PFOS), perfluorohexane sulfonate (PFHxS), perfluorooctanoic acid (PFOA) and perfluorohexanoic acid (PFHxA)] on three typical minerals [montmorillonite (MM), kaolinite (KL) and hematite (HM)] was studied. The sorption of PFOS and PFHxS was much stronger than PFOA and PFHxA. The sorption of each PFAA on the minerals followed an order of HM>KL>MM, even though MM was positively while KL and HM were negatively charged, implying that the sorption is driven by some other interactions besides electrostatic attraction. The sorption decreased with an increase in pH and a decrease in ionic strength of the solution, and their impacts on PFOS were much stronger than other three PFAAs. Surface complexing and hydrogen-bonding could make great contributions to the sorption of PFOS on the minerals. The results are important for understanding the transport and fate of PFAAs in sediment and ground water.
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“An increase in protonation of the sediment surface when the surrounding solution (water) is at a low pH leads to a strong electrostatic attraction between the sediment surface and anionic PFAS (Zhao et al., 2014).”
From Perfluoroalkyl acids in sediment and water surrounding historical fire training areas at Barksdale Air Force Base (2022) · cites this paper as Zhao et al., 2014
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Research works printed but not linked: 1
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Adsorption of organic pollutants by natural and modified clays: A comprehensive review
Awad, A. M., Shaikh, S. M. R., Jalab, R., Gulied, M., Nasser, M. S., Benamor, A., & Adham, S. S. (2019) · Separation and Purification Technology · doi:10.1016/j.seppur.2019.115719 · Cited by 603
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Adsorption of perfluoroalkyl and polyfluoroalkyl substances (PFASs) from aqueous solution: A review
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Metadata
- Authors
- Zhao, L., Bian, J., Zhang, Y., Zhu, L., & Liu, Z.
- Affiliations
- Nankai University (CN)
- Chinese Research Academy of Environmental Sciences (CN)
- Corresponding author
- Zhu, Lingyan
- Venue
- Chemosphere
- Publisher
- Elsevier BV
- Published
- 2014-11
- Volume
- 114
- Pages
- 51-58
- ISSN
- 0045-6535 (ISSN-L)
- OpenAlex
- W2083939576
- Cited by
- 247
- References
- 41
- Citations by year
- 2026: 34 · 2025: 35 · 2024: 31 · 2023: 23 · 2022: 33 · 2021: 21 · 2020: 20 · 2019: 14 · 2018: 10 · 2017: 9 · 2016: 10 · 2015: 6 · 2014: 1
- FWCI
- 6.59
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Chemosphere (publishedVersion)
- PubMed (publishedVersion)
- Funders
- National Natural Science Foundation of China (21077060, 21277077, 21325730)
- Ministry of Education of the People's Republic of China (20130031130005)
- Ministry of Environmental Protection (201009026)
- Tianjin Science and Technology Committee (13JCZDJC35900)
- Fundamental Research Funds for the Central Universities
- Topics
- Physical Sciences › Environmental Science › Environmental Chemistry › Per- and polyfluoroalkyl substances research
- Physical Sciences › Environmental Science › Water Science and Technology › Fluoride Effects and Removal
- Physical Sciences › Environmental Science › Health, Toxicology and Mutagenesis › Chemical Analysis and Environmental Impact
- Keywords
- perfluoroalkyl acids, PFOS, PFHxS, perfluorooctanoic acid, perfluorohexanoic acid, sorption mechanism, clay minerals, montmorillonite, kaolinite, hematite, surface complexation, hydrogen bonding, pH effect, ionic strength, groundwater contaminant transport
- MeSH terms
- Clay, Adsorption, Aluminum Silicates, Bentonite, Caproates, Caprylates, Ferric Compounds, Fluorocarbons, Hydrogen Bonding, Kaolin, Osmolar Concentration, Alkanesulfonic Acids, Static Electricity
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