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DOI: 10.1039/D1EW90014E (Correction) Environ. Sci.: Water Res. Technol., 2021, 7, 1146-1148

Correction: Adsorption of short-chain perfluoroalkyl acids (PFAAs) from water/wastewater

Chi Thanh Vu and Tingting Wu *
Civil and Environmental Engineering Department, The University of Alabama in Huntsville, Huntsville, AL 35899, USA. E-mail: Tingting.Wu@uah.edu; Fax: +1 256 824 6724; Tel: +1 256 824 6423

Received 27th April 2021 , Accepted 27th April 2021

First published on 7th May 2021

Abstract

Correction for ‘Adsorption of short-chain perfluoroalkyl acids (PFAAs) from water/wastewater’ by Chi Thanh Vu et al., Environ. Sci.: Water Res. Technol., 2020, 6, 2958–2972, 10.1039/D0EW00468E.

The authors regret that there are a few errors in Table 1. The correct table is given below.
Table 1 Summary of adsorbents for short-chained PFAA removal
Adsorbents PFAAs Adsorption capacitya (mmol g−1) Timea (hour) Temp.b (°C) pH Speedb (rpm) Initial conc.b (mM) Matrix Adsorbent dosage (g L−1) Ref.b
a The adsorption capacity and time summarized here represent the highest capacity and the time needed to achieve such capacity for a specific PFAA using a specific adsorbent under specific conditions as described. Data were reported in the paper or retrieved from the isotherm/kinetics graphs. b Abbreviations (temp.: temperature; rpm: round per minute; conc.: concentration; Ref.: References).
Fe3O4/PAC PFBS 0.21 24 28 180 0.05–0.72 DI 0.14 1
GAC PFBA 0.08 240 20 30 0.23 DI 0.4 2
PFBS 0.16 0.17
GAC PFBS 0.30 48 22 4.4–5.8 200 0.083–0.83 DI 1.5–15 3
GAC PFBS 0.33 48 30 7.2 150 0.05–0.5 3 mM phosphate 1 4
Microporous AC PFHxA 0.75 72 Room temp. 6 0.023–0.695 DI 0.25 5
PFBS 0.17 0.018–0.737
PFBA 0.24 0.03–0.955
PAC GenX 0.79 96 27 4 165 0.06–0.91 DI 0.1 6
GAC
AER (IRA67) 3.217
AER (IRA400) 2.78
BAC PFHpA 0.18 48 25 4 170 0.11 Perfluorooctanesulfonyl fluoride (PFOSF) wastewater 0.05–1.9 7
PFHxA 0.06 0.1
AER (IRA67) PFHpA 0.53 0.11 0.05–1.5
PFHxA 0.12 0.1
AER (IRA910) PFBS 3.41 240 25 6 160 0.17–1.33 DI 0.1 8
PFBA 2.97 0.23–1.87
PFHxA 3.47 0.16–1.27
AER (A600E) PFBA 0.09 120 20 7.5 4.67 DI 1 9
PFBS 0.12 3.33
AER (A520E) PFBA 0.14 4.67
PFBS 0.18 3.33
AER (A532E) PFBA 0.24 4.67
PFBS 0.36 3.33
AER (IRA410) PFBS 3.40 48 25 3 150 0.67 DI 0.05 10
AER (IRA400) PFBS 3.50
ACF PFHxA 3.18 × 10−5 6 7 120 0.0032 2 mM NaH2PO4 of a mixture of PFHxA, PFHpA, PFOA, PFNA, and PFDA 0.05 11
PFHpA 0.016 0.0027
PANF-PACFs PFBS 0.38 25 5 180 0.33 DI 0.1 12
SWCNTs PFBA 0.02 24 25 7 200 2 × 10−5 − 0.4 10.01 mM NaCl and 3.08 mM NaN3 0.25 13
PFHxA 0.05
PFBS 0.15
Poly-SOMS PFBA 0.028 14 25 6.6 170 0.001–0.009 DI 0.04 14
PFPeA 0.13 0.001–0.008
PFHxA 0.13 0.0008–0.006
PFHpA 0.11 0.0007–0.005
PFBS 0.097 0.0008–0.007
PCMAs PFBS 0.25 4 25 7 150 0.0017–0.17 1 M NaCl and CaCl2 0.5 15
NH2-COFs PFBA 2.71 × 10−4 0.5 23 460 4.67 × 10−6 DI (mixture of 13 PFAAs) 0.01 16
PFHxA 2.64 × 10−4 3.18 × 10−6
PFHpA 2.47 × 10−4 2.75 × 10−6
PFBS 2.77 × 10−4 3.33 × 10−6
GenX 2.76 × 10−4 3.03 × 10−6 DI (only GenX)
CTF PFHxA 1.2 72 Room temp. 6 0.023–0.695 DI 0.25 5
PFBS 0.47 0.018–0.737
PFBA 0.43 0.03–0.955
PEGDA/MTAC PFBA 0.1995 12 Room temp. 150 0.5 DI 2 17
PFBS 0.1906 0.3715
GenX 0.0867 0.193
PEGDA/13FOMA/MTAC PFBA 0.158 0.5
PFBS 0.1689 0.3715
GenX 0.0987 0.193
Ionic fluorogels (IFs) PFBA 2.80 × 10−5 2 6.2 500 4.67 × 10−6 Settled water from water treatment plant (mixture of 11 PFAAs) 0.1 18
PFPeA 3.22 × 10−5 3.79 × 10−6
PFHxA 3.02 × 10−5 3.18 × 10−6
PFHpA 2.72 × 10−5 2.75 × 10−6
PFBS 3.27 × 10−5 3.33 × 10−6
GenX 2.91 × 10−5 3.03 × 10−6
Reduced TFN-CDP PFBA 3.74 × 10−4 0.5 23 500 4.67 × 10−6 DI (mixture of 10 PFAAs) 0.01 19
PFHxA 2.96 × 10−4 3.18 × 10−6
PFHpA 2.58 × 10−4 2.75 × 10−6
PFBS 3.13 × 10−4 3.33 × 10−6
GenX 2.70 × 10−4 3.03 × 10−6
PACs, GACs, other mineral and biomaterial adsorbents PFBA 168 7.5 100 4.67 × 10−4 6 mM phosphate 2.5 20
PFPeA 3.79 × 10−4
PFHxA 3.18 × 10−4
PFHpA 2.75 × 10−4
PFBS 3.33 × 10−4

The ranges of initial concentrations (mostly in isotherm experiments) were added and the adsorption capacity/adsorbent dosages were corrected. Also, the water matrices of the PFAA adsorption tests were provided. Further, more short-chained PFAAs tested at environmentally relevant concentrations for NH2-COFs, IFs, and reduced TFN-CDP were included. The table was re-formatted to make it easier to read and the updated reference list is provided with this corrigendum as well.

The Royal Society of Chemistry apologises for these errors and any consequent inconvenience to authors and readers.

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