Magnetic Co_0.5Zn_0.5Fe₂O₄ nanoparticles were prepared by the nitrate-alcohol-solution combustion and calcination technique. The morphology and composition of Co_0.5Zn_0.5Fe₂O₄ nanoparticles were characterized by the scanning electron microscopy (SEM), the transmission electron microscopy (TEM), the X-ray diffraction (XRD), the energy-dispersive spectroscopy (EDS), the vibrating sample magnetometer (VSM), the Fourier transform infrared spectrometer (FTIR), and the Brunauer-Emmett-Teller measurement (BET). The concentration of the ferric nitrate and the calcination temperature were the two key factors to the property of Co_0.5Zn_0.5Fe₂O₄ nanoparticles. To achieve greater adsorption capacity and durability of materials, magnetic Co_0.5Zn_0.5Fe₂O₄ nanoparticles calcined at 400 °C with ferric nitrate concentration of 0.84 M were employed to remove reactive red 2BF (RR-2BF). The pseudo-second-order kinetic model could be applied to describe the adsorption process of RR-2BF onto Co_0.5Zn_0.5Fe₂O₄ nanoparticles in the initial RR-2BF concentrations of 100–400 mg L⁻¹, and the adsorption process could be fitted well by Langmuir model. The above adsorption experiments results suggested that the adsorption of RR-2BF onto Co_0.5Zn_0.5Fe₂O₄ nanoparticles was the monolayer adsorption mechanism. The effect of the dye solution pH on the adsorption process had been explored. At the same time, the removal efficiency for RR-2BF onto Co_0.5Zn_0.5Fe₂O₄ nanoparticles could maintain more than 72% after 10 cycles.

Magnetic Co_0.5Zn_0.5Fe₂O₄ nanoparticles were prepared by the novel nitrate-alcohol-solution combustion and calcination technique, and they were employed to remove reactive red 2BF (RR-2BF) from aqueous solution. The adsorption mechanism of RR-2BF onto Co_0.5Zn_0.5Fe₂O₄ nanoparticles was investigated, the pseudo-second-order kinetic model and the Langmuir isotherm model fitted well with the experimental data, and Co_0.5Zn_0.5Fe₂O₄ nanoparticles revealed favorable recycling performance.

通过硝酸乙醇溶液燃烧煅烧技术制备了磁性Co _0.5 Zn _0.5 Fe ₂ O ₄纳米颗粒。通过扫描电子显微镜（SEM），透射电子显微镜（TEM），X射线衍射（XRD），能量色散谱（EDS）表征了Co _0.5 Zn _0.5 Fe ₂ O ₄纳米颗粒的形貌和组成。，振动样品磁力计（VSM），傅立叶变换红外光谱仪（FTIR）和Brunauer-Emmett-Teller测量（BET）。硝酸铁的浓度和煅烧温度是影响钴性能的两个关键因素。_0.5 Zn _0.5 Fe ₂ O ₄纳米颗粒。为了获得更大的吸附能力和材料耐久性，采用在400°C下煅烧的硝酸铁浓度为0.84 M的磁性Co _0.5 Zn _0.5 Fe ₂ O ₄纳米颗粒去除活性红2BF（RR-2BF）。伪二级动力学模型可用于描述RR-2BF在初始RR-2BF浓度为100-400 mg L ^-1时对Co _0.5 Zn _0.5 Fe ₂ O ₄纳米颗粒的吸附过程。，吸附过程可以很好地拟合Langmuir模型。上述吸附实验结果表明，RR-2BF在Co _0.5 Zn _0.5 Fe ₂ O ₄纳米颗粒上的吸附是单层吸附机理。研究了染料溶液pH值对吸附过程的影响。同时，RR-2BF在Co _0.5 Zn _0.5 Fe ₂ O ₄纳米颗粒上的去除率在10个循环后可以保持72％以上。

通过新型的硝酸乙醇溶液燃烧和煅烧技术制备了磁性Co _0.5 Zn _0.5 Fe ₂ O ₄纳米粒子，并将其用于去除水溶液中的活性红2BF（RR-2BF）。研究了RR-2BF在Co _0.5 Zn _0.5 Fe ₂ O ₄纳米颗粒上的吸附机理，拟二阶动力学模型和Langmuir等温模型与实验数据吻合，Co _0.5 Zn _0.5 Fe ₂ O ₄纳米颗粒显示出良好的回收性能。