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- W4200490639 abstract "The contamination of pathogenic micro-organisms and heavy metals in drinking water sources poses a serious threat to human health, which raises the demand for efficient water treatments. Herein, multi-functional capacitive deionization (CDI) electrodes were developed for the simultaneous decontamination of bacteria and heavy metal contaminants. Polyhexamethylene guanidine (PHMG), an antibacterial polymer, was deposited on the surface of the activated carbon (AC) electrode with the assistance of mussel-inspired polydopamine (PDA) chemistry. The main characterization results proved successful co-deposition of PDA and PHMG on the AC electrode, forming a hydrophilic coating layer in one step. Electrochemical analyses indicated that the AC-PDA/PHMG electrodes presented satisfactory capacitive behaviors, with outstanding salt adsorption capacity and cycling stability. The modified electrodes also exhibit excellent disinfection performance and heavy metal adsorption performance. The bacterial elimination rate of co-deposited electrodes grew along with the increase in the PHMG content. Particularly, AC-PDA/PHMG2 electrodes successfully removed and deactivated 99.11% Escherichia coli and 98.67% Pseudomonas aeruginosa (104 CFU mL-1) in water within 60 min. Furthermore, three flow cells made by AC-PDA/PHMG2 electrodes connected in series achieved efficient removal of salt, heavy metals such as lead and cadmium, and bacteria simultaneously, which indicated that the adsorption performance is significantly improved compared with pristine AC electrodes. These results denote the enormous potential of this one-step prepared multi-functional electrodes for facile and effective water purification using CDI technology." @default.
- W4200490639 created "2021-12-31" @default.
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- W4200490639 date "2021-12-17" @default.
- W4200490639 modified "2023-10-01" @default.
- W4200490639 title "Simultaneous Efficient Decontamination of Bacteria and Heavy Metals via Capacitive Deionization Using Polydopamine/Polyhexamethylene Guanidine Co-deposited Activated Carbon Electrodes" @default.
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- W4200490639 doi "https://doi.org/10.1021/acsami.1c20145" @default.
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