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通过使用离子交换法和水热法,简单制备了一系列不同含量的Co2+和Ni2+共掺杂锐钛矿型TiO2纳米带。使用X射线衍射(XRD)、扫描电镜(SEM)、透射电镜(TEM)、X射线光电子能谱(XPS)、傅里叶红外(FTIR)和振动样品磁强计(VSM)等各种测试技术对这些样品进行了表征。结果表明,Co2+和Ni2+皆掺入TiO2晶格中,没有发现任何钴或镍金属簇或金属纳米粒子存在,也未发现有它们的氧化物第二相存在。磁性测试结果证实,所有掺杂样品皆有室温铁磁性,但所表现的磁性行为很复杂,同时具有铁磁性和顺磁性。
A series of Co2 + and Ni2 + co-doped anatase TiO2 nanoribbons with different contents were prepared simply by using ion exchange method and hydrothermal method. Various testing techniques such as X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), Fourier transform infrared spectroscopy (FTIR) and vibrating sample magnetometer (VSM) These samples were characterized. The results show that both Co2 + and Ni2 + are incorporated into the TiO2 lattice. No cobalt or nickel metal clusters or metal nanoparticles are found, and no second phase of their oxides is found. Magnetic test results confirmed that all doped samples have room temperature ferromagnetism, but the performance of the magnetic behavior is very complex, with both ferromagnetic and paramagnetic.