Synthesis and Evaluation of Cationic Porphyrin-Based Organic Nanocages for the Removal of 38 PFAS from Water: Experimental, Theoretical, and Eco-toxicological Insights DOI
Karla R. Sanchez‐Lievanos, Daoyang Zhang, Scott Simpson

et al.

ACS ES&T Engineering, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 22, 2024

Per- and polyfluoroalkyl substances (PFAS), persistent pollutants found in water sources worldwide, pose significant challenges to conventional remediation methods. This study presents a one-pot, high atom-economy synthesis of porphyrin-based cationic nanocages (oNCs) as selective, rapid efficient solution for PFAS removal, addressing critical gaps current treatment technologies. Using liquid chromatography–tandem mass spectrometry (LC-MS/MS), the nanocages─[oNC]8PF6, [Co2+-oNC]8PF6, [Co3+(N≡O)-oNC]8PF6─were evaluated their ability sorb mixture 38 PFAS, including emerging contaminants like GenX, from various matrices at concentration 50 ng/mL. The achieved exceptional removal efficiencies, with optimal results obtained when [oNC]8PF6 [Co2+-oNC]8PF6 were combined 1:4 ratio. created synergistic effect, enabling sorption both short- long-chain achieving average efficiencies 90% Nanopure groundwater, 80% influent sewage. nanocage consistently outperformed activated carbon, particularly complex such sewage, where carbon presented lower efficiency, especially perfluoroalkane sulfonamido substances. reached equilibrium within 15 min maintained performance across multiple methanolic regeneration cycles, highlighting operational durability. NMR spectroscopy computational studies revealed that occurs via hydrophobic electrostatic interactions, well partial intercalation, selectivity molecules bearing sulfonate sulfonamide head groups chain lengths five or more. Early stage eco-toxicological assessments confirmed environmental safety these nanocages, showing no adverse effects below 0.005 μM. By combining modular, scalable sustainable material synthesis, this sets new direction developing precise, environmentally responsible solutions.

Language: Английский

Synthesis and Evaluation of Cationic Porphyrin-Based Organic Nanocages for the Removal of 38 PFAS from Water: Experimental, Theoretical, and Eco-toxicological Insights DOI
Karla R. Sanchez‐Lievanos, Daoyang Zhang, Scott Simpson

et al.

ACS ES&T Engineering, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 22, 2024

Per- and polyfluoroalkyl substances (PFAS), persistent pollutants found in water sources worldwide, pose significant challenges to conventional remediation methods. This study presents a one-pot, high atom-economy synthesis of porphyrin-based cationic nanocages (oNCs) as selective, rapid efficient solution for PFAS removal, addressing critical gaps current treatment technologies. Using liquid chromatography–tandem mass spectrometry (LC-MS/MS), the nanocages─[oNC]8PF6, [Co2+-oNC]8PF6, [Co3+(N≡O)-oNC]8PF6─were evaluated their ability sorb mixture 38 PFAS, including emerging contaminants like GenX, from various matrices at concentration 50 ng/mL. The achieved exceptional removal efficiencies, with optimal results obtained when [oNC]8PF6 [Co2+-oNC]8PF6 were combined 1:4 ratio. created synergistic effect, enabling sorption both short- long-chain achieving average efficiencies 90% Nanopure groundwater, 80% influent sewage. nanocage consistently outperformed activated carbon, particularly complex such sewage, where carbon presented lower efficiency, especially perfluoroalkane sulfonamido substances. reached equilibrium within 15 min maintained performance across multiple methanolic regeneration cycles, highlighting operational durability. NMR spectroscopy computational studies revealed that occurs via hydrophobic electrostatic interactions, well partial intercalation, selectivity molecules bearing sulfonate sulfonamide head groups chain lengths five or more. Early stage eco-toxicological assessments confirmed environmental safety these nanocages, showing no adverse effects below 0.005 μM. By combining modular, scalable sustainable material synthesis, this sets new direction developing precise, environmentally responsible solutions.

Language: Английский

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