Evidence of Enhanced Molecular Oxygen Activity Induced by the Synergistic Effect of Oxygen Vacancies and Ag Nanoparticles in Ag3PO4

文献类型： 外文期刊

第一作者： Zhang, Xu

作者： Zhang, Xu;Yi, Futao;Wang, Zhenqi;Chu, Huaqiang;Zhou, Xuefei;Zhang, Yalei;Zhang, Xu;Zhou, Li;Zhang, Xu;Xie, Weifeng

作者机构：

关键词： vacuum-calcined; silver phosphonate; oxygen defects; silver nanoparticles; molecular oxygen activation

期刊名称：CATALYSTS （ 影响因子：4.0； 五年影响因子：4.0 ）

ISSN：

年卷期： 2025 年 15 卷 6 期

页码：

收录情况： SCI

摘要： This study investigates the synergistic enhancement of molecular oxygen activation (MOA) in silver phosphate (Ag3PO4) photocatalysts modified with oxygen vacancies (OVs) and silver nanoparticles (Ag0). The vacuum-calcined Ag3PO4 exhibited a 2.05-fold increase in the degradation efficiency of cylindrospermopsin (CYN), reaching 88.00% within 5 min, compared to its pristine counterpart. This work proposes a novel dual-modification approach-rarely explored in previous MOA studies-by introducing OVs and Ag0 simultaneously. The characterization results confirmed that OVs improved the charge transfer and adsorption of molecular oxygen, while the Ag0 nanoparticles facilitated electron-hole separation and interfacial charge transfer. Reactive oxygen species (ROS) such as O2-, 1O2, H2O2, and OH were confirmed via ESR analysis and chemical assays. A detailed mechanism was proposed and illustrated, showing how OVs and Ag0 synergistically promote MOA. These findings highlight a cost-effective method for enhancing photocatalysis and environmental remediation.

分类号：

  • 相关文献
作者其他论文 更多>>

微信小程序