A high-performance photocatalyst should be superior not only in light absorption and charge transfer but also surface catalytic reaction. Here we report a green and simple strategy for evenly decorating Ag₃PO₄ particles using magnetic NiFe₂O₄ nanoparticles (NPs). The NiFe₂O₄ NPs could act as a magnetic support material for recycling the photocatalysts, as well as in situ catalytically decompose the H₂O₂ produced on the surface of Ag₃PO₄ into O₂⁻ and OH radicals via a photo-Fenton process. The catalytic decomposition of H₂O₂ could produce strong oxidative capacity O₂⁻ and OH radicals for the organic pollutants degradation and reduce host semiconductor holes $({{\mathrm{h}}^{+}}_{\left(\mathrm{A}{\mathrm{g}}_3\mathrm{P}{\mathrm{O}}_4\right)})$ consumption by these produced H₂O₂. Thus, the photocatalytic activities of Ag₃PO₄@NiFe₂O₄ composites were greatly enhanced. Taking the photocatalytic degradation of Methyl orange (MO), hardly decomposed colorless phenol compounds bisphenol A (BPA) and killing Escherichia coli (E. coli) as mode photocatalytic reactions, this system exhibited superior photocatalytic performances than that of pristine Ag₃PO₄. Electron spin resonance (ESR) spectroscopy and sacrificial-reagent incorporated photocatalytic characterizations indicated that the in situ eliminating/active decomposition of H₂O₂ produced by Ag₃PO₄ was the main reason for the enhanced photocatalytic activities.

高性能的光催化剂不仅在光吸收和电荷转移方面，而且在表面催化反应方面也应优越。在这里，我们报告了一种使用磁性NiFe ₂ O ₄纳米颗粒（NPs）均匀装饰Ag ₃ PO ₄颗粒的绿色简单策略。所述的NiFe _2周ö ₄的NP可以作为用于催化再循环光催化剂，以及原位分解为H的磁性载体材料₂ ö ₂ Ag的表面上产生₃ PO ₄制成O ₂ ^-和经由光致OH自由基Fenton过程。H的催化分解₂ ö ₂可以产生强烈的氧化能力ö ₂ ^-和OH自由基的有机污染物的降解和减少主机半导体孔$（{{\mathrm{H}}^{+}}_{（\mathrm{一个}{\mathrm{G}}_3\mathrm{P}{\mathrm{Ø}}_4）}）$由这些产生的H ₂ O ₂消耗。因此，大大提高了Ag ₃ PO ₄ @NiFe ₂ O ₄复合材料的光催化活性。以甲基橙（MO）的光催化降解，无色酚类化合物双酚A（BPA）几乎不分解并杀死大肠杆菌（E. coli）为模式光催化反应，该系统显示出比原始Ag ₃ PO ₄更好的光催化性能。电子自旋共振（ESR）光谱和牺牲试剂结合的光催化特性表明，H _2的原位消除/活性分解Ag ₃ PO ₄产生的O ₂是增强光催化活性的主要原因。