CoFe₂O₄ nanoparticles with band gap of 1.5 eV have excellent magnetic properties but poor catalytic degradation of Acid Blue (AB113) under ambient conditions due to the rapid recombination of electronic charges. To prevent the rapid recombination of electronic charges and to preserve magnetic properties exhibited by CoFe₂O₄ nanoparticles, in this study a non-magnetic counterpart (TiO₂) was engineered by low-frequency ultrasound (40 kHz) assisted processes. Properties of the materials were characterized using XRD, Raman, STEM-HAADF, VSM, and DR-UV-Vis analyses which confirms the lattice substitution of Ti⁴⁺ by Co²⁺ and Fe³⁺ in the anatase crystal structure. TEM analysis reveals the enhanced d-spacing values for anatase (1 0 1) crystal plane when the value are compared for TiO₂ (0.35 nm) and CoFe₂O₄/TiO₂ (0.38 nm) which confirms the lattice substitution of Co²⁺ and Fe³⁺ and/or CoFe₂O₄ nanocatalysts. The optical band gap was increased from 1.5 eV (CoFe₂O₄) to 2.63 eV (CoFe₂O₄/TiO₂). The magnetic nanocomposites demonstrated enhanced sonocatalytic rate {(CoFe₂O₄/TiO₂ = 6.026 × 10^-4 s^-1) and (TiO₂ = 2.135 × 10^-4 s^-1)} and magnetic properties. Heterogeneous sonocatalytic activation of peroxomonosulphate (PMS) validated ∼ 1.6-fold enhanced rate of mineralization of AB113 in the presence of CoFe₂O₄/TiO₂ nanocatalysts. Besides, CoFe₂O₄/TiO₂ nanocatalysts were found to be more stable during the re-utilization up to six consecutive cycles in the sonocatalytic processes. A suitable mechanism was proposed for sonocatalytic degradation of AB 113 in the presence of CoFe₂O₄/TiO₂ magnetic nanocomposites.

带隙为1.5 eV的CoFe ₂ O ₄纳米粒子具有优异的磁性，但由于电荷的快速重组，在环境条件下对酸性蓝（AB113）的催化降解不佳。为了防止电荷的快速复合并保持CoFe ₂ O ₄纳米颗粒表现出的磁性，在本研究中，通过低频超声（40 kHz）辅助工艺设计了非磁性对应物（TiO ₂）。使用XRD，拉曼，STEM-HAADF，VSM和DR-UV-Vis分析表征了材料的性能，这证实了Ti ⁴⁺被Co ²⁺和Fe ³⁺晶格取代。在锐钛矿晶体结构中。TEM分析显示，当比较TiO ₂（0.35 nm）和CoFe ₂ O ₄ / TiO ₂（0.38 nm）的值时，锐钛矿（1 0 1）晶面的d间距值提高，这证实了Co ²的晶格取代⁺和Fe ³⁺和/或CoFe ₂ O ₄纳米催化剂。光学带隙从1.5eV（CoFe ₂ O ₄）增加到2.63eV（CoFe ₂ O ₄ / TiO ₂）。磁性纳米复合材料表现出增强的声催化速率{（CoFe ₂ O ₄ / TiO₂  = 6.026×10 ^-4 s ^-1）和（TiO ₂  = 2.135×10 ^-4 s ^-1）}和磁性。在CoFe ₂ O ₄ / TiO ₂纳米催化剂存在下，过氧单硫酸盐（PMS）的异质声催化活化证明AB113的矿化速率提高了约1.6倍。此外，发现CoFe ₂ O ₄ / TiO ₂纳米催化剂在声催化过程中的再利用过程中可稳定多达六个连续循环。提出了一种在CoFe ₂ O ₄存在下声催化降解AB 113的合适机理。/ TiO ₂磁性纳米复合材料。