Fig. 4: Co-catalyst pathways in the EF process.
From: Site-designed dual-active-center catalysts for co-catalysis in advanced oxidation processes

a Co-catalysis with SACs13. Copyright 2020 American Chemical Society. b, c Co-catalysis with DACs29,60. Copyright 2023 American Chemical Society. Copyright 2024 Elsevier B.V. d Co-catalysis with metal cluster catalysts63. Copyright 2023 National Academy of Science, USA. e, f Co-catalysis with nonmetal catalysts67,76. Copyright 2023 American Chemical Society. Copyright 2022 Elsevier B.V. g Four co-catalysis mechanisms in the EF process. The pink spheres represent oxygen atoms, the white spheres represent hydrogen atoms, the dark gray elliptical spheres represent pollutants (ECs), and the black solid line represent electron transfer pathway.