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
作者： Zhang, Xu 1 ; Yi, Futao 1 ; Zhou, Li 2 ; Xie, Weifeng 4 ; Wang, Zhenqi 1 ; Chu, Huaqiang 1 ; Zhou, Xuefei 1 ; Zhang, Yalei 1 ;
作者机构： 1.Tongji Univ, Coll Environm Sci & Engn, Shanghai 200092, Peoples R China
2.Shanghai Acad Agr Sci, Inst Ecoenvironm Protect Res, Shanghai Engn Res Ctr Low Carbon Agr, Shanghai 201403, Peoples R China
3.Tongji Univ, Key Lab Urban Water Supply Water Saving & Water En, Minist Water Resources, Shanghai 200092, Peoples R China
4.Shanghai Qingpu Dist Chonggu Town Agr & Rural Serv, Shanghai 201706, Peoples R China
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
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