以氯化钴、氯化镍和六次亚甲基四胺为原料，通过水热反应合成Co3 O4／NiO前驱体材料，经过煅烧得到Co3 O4／NiO样品。研究不同煅烧温度对样品形貌的影响，并采用X射线衍射仪（ XRD）和场发射扫描电子显微镜（FESEM）检测样品的结构和形貌，结果表明：在400℃煅烧后，得到纳米花瓣状结构Co3O4／NiO，花瓣厚度为50 nm，表面有多孔结构。对比纳米花瓣状Co3 O4／NiO、Co3 O4、NiO和无催化剂条件下对吡啰红B （ PB）的紫外光降解效率，纳米花瓣状Co3 O4／NiO表现了最好的光催化活性，在180 min后对PB的降解率达95％。
The Co3 O4/NiO precursor sample was synthesized by hydrothermal method using CoCl 2 · 6H2 O, NiCl2 · 6H2 O and hexamethylene tetramine as raw materials .After the heat treatment , the Co3O4/NiO sample was obtained.The Co3O4/NiO sample with different morphologies was prepared by changing calcination temperature . The structures and morphologies of nano-petal Co3 O4/NiO were investigated by X-ray diffraction (XRD) and field emission scanning electron microscopy (FESEM).The results indicate after the heat treatment at 400 ℃, the asobtained nano-petal Co 3 O4/NiO have porous surfaces with a thickness of about 50 nm.Comparing the degradation efficiency of PB under UV irradiation with nano-petal Co3 O4/NiO, Co3 O4 , NiO and without any catalyst , nano-petal Co3 O4/NiO photocatalysts possess higher photocatalytic efficiency .The results show that after 180 minutes under UV irradiation, the degradation rate of PB is close to 95%.
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