Ag₆Si₂O₇, a visible light-driven photocatalyst, has attracted considerable attention owing to its enormous environmental remediation potential. In this work, a magnetic iron(II,III) oxide/titania/silver silicate (Fe₃O₄/TiO₂/Ag₆Si₂O₇) nanocomposite was synthesized by anchoring TiO₂ and Ag₆Si₂O₇ on the surface of Fe₃O₄ nanoparticles. The morphology, crystal structure, as well as the spectroscopic, magnetic, and photocurrent properties of the as-prepared Fe₃O₄/TiO₂/Ag₆Si₂O₇ nanocomposite were studied. Methylene blue (MB) was used for evaluating the photocatalytic performance under simulated visible light. The Brunauer–Emmett–Teller (BET) surface area, total pore volumes, and average pore diameter of the Fe₃O₄/TiO₂/Ag₆Si₂O₇ nanocomposite were calculated to be 33.077 m²/g, 0.099 cm³/g, and 15.45 nm, respectively. The Fe₃O₄/TiO₂/Ag₆Si₂O₇ photocatalyst showed a narrow-band-gap (1.38 eV) while exhibiting excellent photocatalytic performance with a photocurrent of 9.4 µA/cm² under simulated visible light. Furthermore, the nanocomposites showed high resistance to degradation (i.e., more than 80%) after 5 reaction cycles and as a result of high saturation magnetization (25.51 emu/g), the spent material was easily separated upon application of a magnetic field. Meanwhile, the photogenerated holes (h⁺) and superoxide ions (O₂⁻) were confirmed as the main active species. This novel photocatalyst is expected to provide a new insight into the design of photocatalysts with excellent recyclability, high performance, and good stability.

可见光驱动的光催化剂Ag ₆ Si ₂ O ₇，由于其巨大的环境修复潜力而备受关注。在这项工作中，通过将TiO ₂和Ag ₆ Si ₂ O ₇锚固在氧化铁（II，III）/二氧化钛/硅酸银（Fe ₃ O ₄ / TiO ₂ / Ag ₆ Si ₂ O ₇）纳米复合材料上来制备纳米复合材料。 Fe ₃ O _4的表面纳米粒子。研究了制备的Fe ₃ O ₄ / TiO ₂ / Ag ₆ Si ₂ O ₇纳米复合材料的形貌，晶体结构以及光谱，磁性和光电流性质。亚甲基蓝（MB）用于评估在模拟可见光下的光催化性能。计算出的Fe ₃ O ₄ / TiO ₂ / Ag ₆ Si ₂ O ₇纳米复合材料的布鲁诺－埃梅特－泰勒（BET）表面积，总孔体积和平均孔径为33.077 m ² /g，0.099 cm ³/ g和15.45 nm。Fe ₃ O ₄ / TiO ₂ / Ag ₆ Si ₂ O ₇光催化剂显示出窄带隙（1.38 eV），同时在模拟可见光下表现出优异的光催化性能，光电流为9.4 µA / cm ²。此外，纳米复合材料在5个反应循环后显示出高的抗降解性（即，大于80％），并且由于高饱和磁化强度（25.51emu / g），在施加磁场时容易分离废料。同时，光生空穴（h ⁺）和超离子（Ò ₂ ^-）被确认为主要活性物种。期望这种新颖的光催化剂能够以优异的可回收性，高性能和良好的稳定性为光催化剂的设计提供新的见解。