以氯化钴、氯化镍、尿素和聚乙二醇为原料,通过水热反应合成钴酸镍前驱体材料,经过煅烧得到NiCo_2O_4样品。研究不同反应温度对样品形貌的影响,并采用X射线衍射仪(XRD)和扫描电子显微镜(SEM)检测样品的结构和形貌,结果表明:在300℃煅烧后,得到NiCo_2O_4纳米棒,纳米棒直径为100 nm,表面有多孔结构。以NiCo_2O_4纳米棒为催化剂,在紫外光照射下光催化降解罗丹明B(Rh B),在120 min后对Rh B的降解率达93.1%。 Using cobalt chloride, nickel chloride, urea and polyethylene glycol as raw materials, NiCo_2O_4 samples were prepared by hydrothermal reaction. The effects of different reaction temperatures on the morphology of the samples were investigated. The structure and morphology of the samples were characterized by X-ray diffraction (XRD) and scanning electron microscopy (SEM). The results showed that after calcination at 300 ℃, NiCo_2O_4 nanorods, Rod diameter of 100 nm, the surface of the porous structure. The photocatalytic degradation of rhodamine B (Rh B) by NiCo_2O_4 nanorods as a catalyst showed that the degradation rate of Rh B reached 93.1% after 120 min.