Surface catalytic effect of Ag nanoparticles and influence of dissolved oxygen on photocatalytic reduction of nitrate.

ABSTRACT: Photocatalytic reduction of nitrate is a promising green strategy to remove nitrogen pollutants from water bodies. However, it is a considerable challenge to directly reduce nitrate using photogenerated electrons. In this work, a g-C₃N₄/Ag-nanoparticle composite demonstrating high catalytic activity toward nitrate is constructed using an in situ photodeposition method. Based on photoelectrochemical, ion chromatography and nuclear magnetic resonance characterization, Ag nanoparticles were found to exhibit strong surface catalytic activity for reducing NO₃ ^- to NO₂ ^-, while g-C₃N₄/Au-nanoparticles exhibited no photocatalytic reduction activity toward NO₃ ^-. Additionally, the e

SUBMITTER: Huang B 

PROVIDER: S-EPMC11924039 | biostudies-literature | 2025 Mar

REPOSITORIES: biostudies-literature