To now, the catalytic decomposition of hydrogen peroxide (H₂O₂) utilizing M/BS@Ag core-shell nanoparticles as catalysts has not yet been reported. In this work, M/BS@Ag core-shell nanoparticles prepared by a simple two-step process, in which M/BS catalysts (M: Cu, Ni, Co, Fe or Mn ions and BS: Bi₁₂SiO₂₀) synthesized by ultrasonic-assisted hydrothermal method, and then utilized to prepare M/BS@Ag core-shell nanoparticles by a one-step thermal reduction route utilizing a sodium citrate. The as-prepared M/BS@Ag core-shell nanoparticles characterized by different techniques such as X-ray diffraction (XRD), Brunauer-Emmett-Teller (BET) and transmission electron microscopy (TEM) to illustrate their structural, surface, and morphological properties, respectively. It was observed that a sharp decrement in specific surface area from 50.6 m² g⁻¹ for Co/BS to 6.6 m² g⁻¹ for Co/BS@Ag and from 74.6 m² g⁻¹ for Mn/BS to 18.4 m² g⁻¹ for Mn/BS@Ag. Noteworthy, the catalytic activities of the as-prepared Cu/BS@Ag, Fe/BS@Ag, Ni/BS@Ag, Co/BS@Ag and Mn/BS@Ag core-shell nanoparticles found to be 33.3%, 39.1%, 62.9%, 96.2% and 99.1%, respectively. Additionally, the highest active core-shell nanoparticle exhibited higher stability in comparison to the catalyst without Ag coating.

迄今为止，尚未报道过利用 M/BS@Ag 核壳纳米粒子作为催化剂催化分解过氧化氢 (H ₂ O ₂ )。在这项工作中，M/BS@Ag 核壳纳米粒子通过简单的两步法制备，其中 M/BS 催化剂（M：Cu、Ni、Co、Fe 或 Mn 离子和 BS：Bi ₁₂ SiO ₂₀)通过超声辅助水热法合成，然后利用柠檬酸钠通过一步热还原路线制备M/BS@Ag核壳纳米粒子。所制备的 M/BS@Ag 核壳纳米粒子通过 X 射线衍射 (XRD)、Brunauer-Emmett-Teller (BET) 和透射电子显微镜 (TEM) 等不同技术表征，以说明其结构、表面和形态学特性，分别。据观察，比表面积从Co/BS 的50.6 m ² g ^-1急剧减少到Co/BS@Ag 的6.6 m ² g ^-1和Mn/BS 的74.6 m ² g ^-1到 18.4 m ²克^-1对于 Mn/BS@Ag。值得注意的是，所制备的 Cu/BS@Ag、Fe/BS@Ag、Ni/BS@Ag、Co/BS@Ag 和 Mn/BS@Ag 核壳纳米粒子的催化活性为 33.3%, 39.1 %、62.9%、96.2% 和 99.1%。此外，与没有银涂层的催化剂相比，活性最高的核壳纳米颗粒表现出更高的稳定性。