biostudies-literatureFang HNatural Science Foundation of Liaoning Province39909-39918https://www.ebi.ac.uk/biostudies/studies/S-EPMC12536613biostudies-literatureUnknown15(47)The rational design of heterostructured photocatalysts is critical for addressing organic dye pollution through solar-driven advanced oxidation processes. Herein, a ternary Ag₂O@CuFe₂O₄@g-C₃N₄ nanocomposite was synthesized <i>via</i> a hydrothermal-precipitation route, integrating Z-scheme charge transfer and Fenton-like reactivity for enhanced visible-light photocatalysis. The composite's activity was evaluated <i>via</i> methylene blue (MB) degradation under a 300 W metal-halide lamp (<i>λ</i> ≥ 420 nm), achieving 99.93% removal within 35 min-2.1× and 1.4× faster than pristine g-C₃N₄ and binary counterparts, respectively. This performance stems from synergistic effects: (i) a Z-scheme heterojunction between Ag<sRSC advancesEnhanced visible-light photocatalytic degradation of methylene blue &lt;i&gt;via&lt;/i&gt; a ternary Ag&lt;sub&gt;2&lt;/sub&gt;O@CuFe&lt;sub&gt;2&lt;/sub&gt;O&lt;sub&gt;4&lt;/sub&gt;@g-C&lt;sub&gt;3&lt;/sub&gt;N&lt;sub&gt;4&lt;/sub&gt; Z-scheme heterojunction with synergistic Fenton-like reactivity for sustainable water remediation.PMC125366132020-Ms-306Fang HShi SWang JfalseEnhanced visible-light photocatalytic degradation of methylene blue &lt;i&gt;via&lt;/i&gt; a ternary Ag&lt;sub&gt;2&lt;/sub&gt;O@CuFe&lt;sub&gt;2&lt;/sub&gt;O&lt;sub&gt;4&lt;/sub&gt;@g-C&lt;sub&gt;3&lt;/sub&gt;N&lt;sub&gt;4&lt;/sub&gt; Z-scheme heterojunction with synergistic Fenton-like reactivity for sustainable water remediation.The rational design of heterostructured photocatalysts is critical for addressing organic dye pollution through solar-driven advanced oxidation processes. Herein, a ternary Ag₂O@CuFe₂O₄@g-C₃N₄ nanocomposite was synthesized <i>via</i> a hydrothermal-precipitation route, integrating Z-scheme charge transfer and Fenton-like reactivity for enhanced visible-light photocatalysis. The composite's activity was evaluated <i>via</i> methylene blue (MB) degradation under a 300 W metal-halide lamp (<i>λ</i> ≥ 420 nm), achieving 99.93% removal within 35 min-2.1× and 1.4× faster than pristine g-C₃N₄ and binary counterparts, respectively. This performance stems from synergistic effects: (i) a Z-scheme heterojunction between Ag<s2025-01-01T00:00:00Z2025 Oct2026-06-04T15:07:29.419Z2026-05-10T03:11:35.841ZS-EPMC125366134112240810.1039/d5ra02882e