CeO₂, NiO and their nanocomposite were synthesized using facile sonochemical technique. XRD assure single phase CeO₂ and NiO while the nanocomposite consists of the two phases only. CeO₂ nanoparticles possess cubic shape, NiO was formed in nanorods, and CeO₂ decorated the NiO nanorods in the nanocomposite. The magnetic behavior of the nanocomposite lies between those of the two parents with a ferromagnetic tendency. Metal oxide nanoparticles acted as catalyst in the formation of carbon nanofibers (CNFs), while the nanocomposite leads to the production of carbon nanotubes. The photocatalyst (CeO₂-NiO) achieved complete dye degradation (100%) in light for the tested dye at 50 min. The decay products were analyzed using GC mass confirming mineralization of Bb red dye.

采用简便的声化学技术合成了CeO ₂，NiO及其纳米复合材料。XRD确保了单相CeO ₂和NiO，而纳米复合材料仅由两相组成。CeO ₂纳米颗粒具有立方体形状，在纳米棒中形成NiO，并且CeO ₂在纳米复合材料中修饰NiO纳米棒。纳米复合材料的磁行为介于两个具有铁磁趋势的母体之间。金属氧化物纳米颗粒在形成碳纳米纤维（CNF）时起催化剂的作用，而纳米复合材料则导致碳纳米管的生产。光催化剂（CeO ₂-NiO）在50分钟的光照下实现了染料的完全降解（100％）。使用GC质量分析衰变产物，确认Bb红色染料的矿化。