Coating Nanowires with Straw Carbon Enhances Their Bactericidal Performance and Enables Efficient Water Disinfection

Environmental Science & Technology, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 24, 2025

Bacterial contamination in water remains a significant public health threat, and it is crucial to develop disinfection methods that are both safe effective. In this study, we developed straw carbon-coated nanowires (SC/NWs) as an effective bactericidal material for disinfection. The thermal decomposition of rice produced sp2-structured, amorphous carbon layer with oxygen-containing functional groups hetero atoms on its surface. SC coating enhanced the performance Cu(OH)2 NWs by more than 3-log, achieving >6-log inactivation Escherichia coli at flux 2000 L m-2 h-1. bacteria exposed SC/NWs suffered extensive membrane disruption lost cellular integrity. contrast, uncoated caused limited damage bacteria. Molecular dynamics simulations revealed had strong van der Waals electrostatic interactions bacterial membranes, these attractive forces led efficient rupture during flow. were used disinfect real samples, including tap reclaimed water, reductions counts storage. Importantly, no reactivation was observed after 24 h storage, which indicated irreversible This work presents cost-effective, sustainable solution developing mechano-bactericidal materials tailored

Language: Английский

Decreased bromate formation but inadvertently increased toxicity in the chloramination-ozonation process: Essential roles of halamines in generating halogenated and nitrogenous byproducts

Water Research, Journal Year: 2025, Volume and Issue: unknown, P. 123786 - 123786

Published: May 1, 2025

Language: Английский