Herein, Ag nanoparticles (AgNPs) were loaded on oxidized porous g-C₃N₄ (PCNO) via photo-assisted reduction method. Compared with PCNO, Ag/PCNO plasmonic photocatalysts possessed remarkably enhanced photocatalytic performances in both pollutant degradation and disinfection under visible light irradiation. The optimum photocatalytic activity of Ag/PCNO at a loading amount of 2.0 wt% (Ag-2/PCNO) on amaranth degradation was almost 2.4 times as fast as that of PCNO. Additionally, Ag-2/PCNO could inactivate about 99.4% of Staphylococcus aureus (S. aureus) cells after 3 h of irradiation, whereas only about 29.6% of S. aureus cells were inactivated by PCNO. The enhancement of photocatalytic activities for Ag/PCNO composites could be ascribed to the combination of the SPR effect of AgNPs and the synergistic effect from PCNO molecules, which resulted in enhanced absorption in visible-light region, improved charge transfer, and reduced charge recombination. Moreover, h⁺ and O₂⁻ were the dominate reactive species for Ag/PCNO composites to remove azo pigments and pathogenic bacteria efficiently during the photocatalytic process.

在此，通过光辅助还原法将Ag纳米颗粒（AgNPs）负载在氧化的多孔gC ₃ N ₄（PCNO）上。与PCNO相比，Ag / PCNO等离子体光催化剂在可见光照射下在污染物降解和消毒方面具有显着增强的光催化性能。Ag / PCNO在2.0 wt％（Ag-2 / PCNO）的负载量下对a菜红降解的最佳光催化活性几乎是PCNO的2.4倍。此外，Ag-2 / PCNO可以灭活约99.4％的金黄色葡萄球菌（S. aureus）细胞在照射3小时后，而PCNO只能灭活约29.6％的S. aureus细胞。Ag / PCNO复合材料的光催化活性增强归因于AgNPs的SPR效应和PCNO分子的协同效应，从而导致可见光区域吸收增强，电荷转移改善和电荷重组减少。此外，H ⁺和ö ₂ ^-分别为银/ PCNO的主导活性种复合材料中光催化过程有效地除去偶氮颜料和致病菌。