3D tower-like Ag-Sm(OH)₃-ZnO morphologies were successfully synthesized via a facile in situ method by utilizing Sm(OH)₃-ZnO as the precursor. The scanning electron microscopy (SEM) images reveal that the 3D tower-like Sm(OH)₃-ZnO samples were grown to a 3D tower-shape. Additionally, silver nanoparticles were uniformly dispersed on the surface of Sm(OH)₃-ZnO. The photo catalytic performances of the as-prepared Ag-Sm(OH)₃-ZnO samples were evaluated towards the removal of Rhodamine B (RhB) upon visible-light irradiation. Compared with 70% degradation efficiency of RhB solution over Sm(OH)₃-ZnO under visible-light irradiation for 120 min, the 3D tower-like Ag-Sm(OH)₃-ZnO hybrid could reach 98% under the same conditions. This superior performance could be attributed to the surface plasmon resonance (SPR) and Heterojunction effect induced through the addition of Ag.

以Sm（OH）₃ -ZnO为前驱体，通过简便的原位方法成功合成了3D塔状Ag-Sm（OH）₃ -ZnO形态。扫描电子显微镜（SEM）图像显示，将3D塔状Sm（OH）₃ -ZnO样品生长为3D塔状。另外，银纳米颗粒均匀地分散在Sm（OH）₃ -ZnO的表面上。评估了制备的Ag-Sm（OH）₃ -ZnO样品在可见光照射下对若丹明B（RhB）去除的光催化性能。与RhB溶液对Sm（OH）_3的70％降解效率相比-ZnO在可见光照射120分钟后，在相同条件下3D塔状Ag-Sm（OH）₃ -ZnO杂化物可达到98％。这种优异的性能可以归因于通过加入Ag诱导的表面等离子体共振（SPR）和异质结效应。