Cited by 102Per- and polyfluoroalkyl substances researchAdsorption and biosorption for pollutant removalEnvironmental remediation with nanomaterials

Effect of humic acid on the sorption of perfluorooctane sulfonate (PFOS) and perfluorobutane sulfonate (PFBS) on boehmite

Wang, Fei, Shih, Kaimin, Leckie, James O.·2015·Chemosphere

Abstract

The sorption of PFOS and PFBS on boehmite was significantly retarded by the competitive sorption of humic acid (HA), implying that PFOS and PFBS are likely more mobile in water and groundwater systems enriched with HA. The sorption behavior of PFOS and PFBS on the HA-modified boehmite surface were also found to differ due to their different chain lengths. For a partially HA-modified boehmite surface, the isotherm study showed that PFOS had a much higher maximum sorption capacity than PFBS and that PFOS might possess additional surface interactions besides electrostatic interaction. For a HA-saturated boehmite, a linear sorption isotherm was found for PFOS while nearly no PFBS sorption was observed. This indicates that sorption behavior between PFOS and the sorbed HA on boehmite was dominated by hydrophobic interactions, instead of electrostatic interaction. In addition, a conceptual model combining hydrophobic and electrostatic interaction was established to explain the sorption behavior of PFOS and PFBS on HA-modified boehmite. Finally, the results revealed that the sorption of PFOS and PFBS on HA-modified boehmite is pH-dependent. The neutralization of negative sites on HA-modified boehmite reduced the electrostatic repulsion and enhanced the partitioning of PFBS on the sorbed HA.

Integrity signals

Registry

Crossref · 10.1016/j.chemosphere.2014.08.080

Cites

48 of 48 references verified0 citation errors · 0 not checkable

Statistics

Recomputing p-values needs the paper’s full text.

Claims the paper makes

This paper’s full text isn’t openly available, so its claims and self-check weren’t run. The registry and citation checks still apply.

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Wang, F., Shih, K., & Leckie, J. O.
Affiliations
  • University of Hong Kong (HK)
  • Stanford University (US)
Corresponding author
Shih, Kaimin
Venue
Chemosphere
Publisher
Elsevier BV
Published
2015-01
Volume
118
Pages
213-218
ISSN
0045-6535 (ISSN-L)
OpenAlex
W2003049949
Cited by
102
References
48
Citations by year
2026: 15 · 2025: 12 · 2024: 15 · 2023: 8 · 2022: 10 · 2021: 12 · 2020: 10 · 2019: 8 · 2018: 3 · 2017: 3 · 2016: 5 · 2015: 1
FWCI
2.28
Type
journal article
Language
en
Open access
closed
Locations
  • Chemosphere (publishedVersion)
  • PubMed (publishedVersion)
  • The HKU Scholars Hub (University of Hong Kong) (submittedVersion)
Funders
  • Hong Kong General Research Fund (HKU 716809E)
  • Hong Kong Special Equipment (SEG_HKU10)
Topics
  • Physical Sciences › Environmental Science › Environmental Chemistry › Per- and polyfluoroalkyl substances research
  • Physical Sciences › Environmental Science › Water Science and Technology › Adsorption and biosorption for pollutant removal
  • Physical Sciences › Engineering › Biomedical Engineering › Environmental remediation with nanomaterials
Keywords
humic acid, PFOS, PFBS, boehmite, competitive adsorption, hydrophobic interactions, electrostatic interactions, sorption isotherms, pH dependence, PFAS sorption
MeSH terms
Adsorption, Aluminum Hydroxide, Aluminum Oxide, Fluorocarbons, Humic Substances, Hydrogen-Ion Concentration, Kinetics, Models, Chemical, Surface Properties, Water Pollutants, Chemical, Alkanesulfonic Acids, Static Electricity, Hydrophobic and Hydrophilic Interactions, Groundwater

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review