Nanomaterial-Based Advanced Oxidation/Reduction Processes for the Degradation of PFAS
Abstract
:1. Introduction
2. Advanced Oxidation/Reduction Processes
2.1. ARP
2.1.1. Ultraviolet Light (254 nm) Systems
2.1.2. Vacuum Ultraviolet Light (185 nm) Systems
2.2. AOPs
2.2.1. Ozone
2.2.2. UV Degradation Techniques
2.2.3. Heterogeneous Photocatalysis
2.3. ARP vs. AOP
3. Nanomaterials-Based AOPs and ARPs
3.1. Previous Reviews
3.2. Advances in Concentration Strategies of PFAS
3.3. Advances in PFAS Degradation Technologies
4. Perspectives
Author Contributions
Funding
Conflicts of Interest
References
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PFAS | Process/Material | Main Reactive Species | %Deg | Time | Reference |
---|---|---|---|---|---|
PFOA (38.7 μM) | UV/sulfite (pH = 9.2) | eaq− | 100% | 10 min (200–400 nm, 250 W) | [37] |
PFOA (10 μg/L) | UV/sulfite (pH = 12) | eaq− | 100% | 1 h (254 nm, 11 W) | [38] |
PFOA (1.35 mM) | UV/Persulfate | SO4*− | 100% | 4 h (Xenon, 200 W) | [57] |
PFOA (0.5 μM) | 85 °C/Persulfate | SO4*− | 93.5% | 30 h | [59] |
PFOA (50 mg/L) | UV/Cu–TiO2 (pH = 5) | *OH | 91% | 12 h (254 nm, 400 W) | [64] |
PFOA | Fe/TNTs@AC (pH = 7) | hVB+ | 91.3% | 4 h (254 nm, 21 mW cm–2) | [64] |
PFOA (15 mg/L) | BiOI@Bi5O7I | *OH, O2*−, hVB+ | 60% | 6 h (Xenon, 800 W) | [65] |
PFAS | Material | Main Reactive Species | %Deg | Time | Reference |
---|---|---|---|---|---|
PFOA (100 μg/L) | MOF (MIL-125-NH2/Glucose) | eaq−, *OH | 98.9% | 24 h (254 nm, 450 W) | [90] |
PFOA (50 ppb) | Pt/La2Ti2O7 nanoplates (Methanol) | eaq− | 40% | 180 min (254 nm, 1 mW∙cm– 2) | [91] |
PFOA (15 μg/L) | BiOF nanosheets | O2*−, hVB+ | 100% | 6 h (254 nm, 11 W) | [92] |
PFOS (100 μg/L) | Ga/TNT@AC | O2*−, hVB+ | 75% | 4 h (UV, 210 W/m2) | [94,95] |
Gen-X (100 μg/L) | Bi/TNT@AC | *OH, hVB+ | 70% | 4 h (UV, 210 W/m2) | [96] |
PFOA/PFOS | iron-clay-cyclodextrin composite | *OH | 65% | 10 min | [97] |
PFOA (120 μM) | BN/TiO2 composite | hVB+ | 98% | 2 h (254 nm) | [98] |
PFAS | UV Fenton (Fe3O4 nanoparticles) | ROS | 80% | 30 min (254 nm) | [99] |
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Cardoso, I.M.F.; Pinto da Silva, L.; Esteves da Silva, J.C.G. Nanomaterial-Based Advanced Oxidation/Reduction Processes for the Degradation of PFAS. Nanomaterials 2023, 13, 1668. https://doi.org/10.3390/nano13101668
Cardoso IMF, Pinto da Silva L, Esteves da Silva JCG. Nanomaterial-Based Advanced Oxidation/Reduction Processes for the Degradation of PFAS. Nanomaterials. 2023; 13(10):1668. https://doi.org/10.3390/nano13101668
Chicago/Turabian StyleCardoso, Inês M. F., Luís Pinto da Silva, and Joaquim C. G. Esteves da Silva. 2023. "Nanomaterial-Based Advanced Oxidation/Reduction Processes for the Degradation of PFAS" Nanomaterials 13, no. 10: 1668. https://doi.org/10.3390/nano13101668