Boosting Selective Superoxide Radical Generation for De-Nox Process by Fe2o3-Cn Catalyst: The Role of Enhanced Electron Transfer in H2o2 Activation

Опубликована: Янв. 1, 2025

The H2O2-based advanced oxidation process is an eco-friendly strategy to utilize strong reactive oxygen species (ROS) for treating NOx emitted from low-temperature flue gas. This study developed a heterogeneous Fenton-like catalyst, Fe2O3-CN, with enhanced electron transfer capabilities by loading Fe2O3 onto graphitic carbon nitride. catalyst was employed activate H2O2, generating superoxide radicals (O2•–) under alkaline conditions remove in simulated industrial gas environment. Compared or g-C3N4 alone, the Fe2O3-CN exhibited significantly improved performance. Specifically, achieved 18.3% and 11.7% increase total removal capacity, respectively. Mechanistic analysis revealed that O2•– predominant responsible system. Density functional theory (DFT) calculations electrochemical characterization results showed high density of unpaired free electrons superior capability facilitates Fe2+/Fe3+ cycling promotes generation hydroxyl (HO•). Under conditions, HO• reacts H2O2 selectively form O2•–, enabling efficient removal. offers novel approach addressing performance highlights its potential as practical effective treatment, paving way more sustainable emission control technologies.

Язык: Английский

High-valent cobalt-oxo species mediated oxidation of pollutants by ZIFs-derived single-atom cobalt-activated peroxymonosulfate

Chemical Engineering Journal, Год журнала: 2025, Номер unknown, С. 159831 - 159831

Опубликована: Янв. 1, 2025

Язык: Английский

Radical and nonradical cocatalysis induced by asymmetric medium-spin cobalt single atom for water decontamination

Applied Catalysis B Environment and Energy, Год журнала: 2025, Номер unknown, С. 125283 - 125283

Опубликована: Март 1, 2025

Язык: Английский