以CuSO4.5H2O和NH4VO3为原料,采用水热法制备了Cu3V2O7(OH)2.2H2O纳米线。采用X射线衍射(XRD)和场发射扫描电子显微镜(FE-SEM)对样品的组成和表面形貌进行了表征,结果显示:Cu3V2O7(OH)2.2H2O纳米线直径约80 nm,长度达到几个微米。对纳米线形成机理研究表明:该纳米线的形成主要取决于反应温度和反应体系pH值等因素。紫外-可见光吸收测试显示Cu3V2O7(OH)2.2H2O纳米线具有较宽的紫外-可见光吸收范围,计算其带隙宽度为1.94 eV。 Using CuSO4.5H2O and NH4VO3 as raw materials, Cu3V2O7 (OH) 2.2H2O nanowires were prepared by hydrothermal method. The composition and surface morphology of the samples were characterized by X-ray diffraction (XRD) and field emission scanning electron microscopy (FE-SEM). The results show that the diameter of Cu3V2O7 (OH) 2.2H2O nanowires is about 80 nm, Micron. The formation mechanism of nanowires shows that the formation of nanowires mainly depends on the reaction temperature and the pH of the reaction system. UV-Vis absorption test showed that the Cu3V2O7 (OH) 2.2H2O nanowire has a wide range of UV-Vis absorption and the bandgap width was calculated to be 1.94 eV.