Exploring the electron transfer regime occurring in peroxides activation by graphite: Origin, mechanism and efficiency in complicated water matrices

Chemical Engineering Journal, Год журнала: 2024, Номер 485, С. 150016 - 150016

Опубликована: Фев. 28, 2024

Язык: Английский

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Autocatalytic degradation of Cu-EDTA in the Calcite/PMS system: Singlet oxygen and Cu(III)

Journal of Hazardous Materials, Год журнала: 2024, Номер 477, С. 135286 - 135286

Опубликована: Июль 21, 2024

Язык: Английский

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Selective oxidation of emerging organic contaminants in heterogeneous Fenton-like systems

Nano Research, Год журнала: 2024, Номер 17(11), С. 9300 - 9325

Опубликована: Авг. 5, 2024

Язык: Английский

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Different Inactivation Mechanisms of Staphylococcus aureus and Escherichia coli in Water by Reactive Oxygen and Nitrogen Species Generated from an Argon Plasma Jet

Environmental Science & Technology, Год журнала: 2025, Номер unknown

Опубликована: Фев. 5, 2025

The atmospheric pressure plasma jet (APPJ) is a promising technology for inactivating waterborne pathogens by generating diverse reactive species under ambient conditions. However, uncertainties regarding the bacterial inactivation mechanisms persist due to varying findings in prior research. This study aimed clarify of two representative bacteria, Staphylococcus aureus (S. aureus, Gram-positive) and Escherichia coli (E. coli, Gram-negative), using an argon-based APPJ (Ar-APPJ) system controlled medium, primarily deionized water. We identified several oxygen nitrogen (RONS), including hydrogen peroxide, peroxynitrous acid/peroxynitrite (ONOOH/ONOO–), hydroxyl radical (•OH), hydroperoxyl radical/superoxide radical, evaluated their roles inactivation. Inactivation experiments quantification suspected RONS revealed that ONOOH was primary lethal agent S. while •OH predominantly inactivated E. coli. Assessment cell membrane integrity intracellular levels showed with its thinner wall, more vulnerable surface damage caused •OH. In contrast, thicker attack penetrated ONOOH, being significantly diffusive than •OH, effective, as alone could not induce sufficient damage. These advance our understanding Ar-APPJ provide valuable insights designing effective water disinfection strategies utilizing this technology.

Язык: Английский

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Insight into homogeneous activation of sodium hypochlorite by dithionite coupled with dissolved oxygen (DO@NaClO/DTN) for carbamazepine degradation

Water Research, Год журнала: 2025, Номер 277, С. 123312 - 123312

Опубликована: Фев. 18, 2025

Язык: Английский

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