Herein, magnetic metal-organic framework nanocomposite ([email protected]₂@MnFe₂O₄) was synthesized. The ultrasound-assisted simultaneous adsorption of Malachite Green (MG) and Methyl Orange (MO) as cationic and anionic dyes onto [email protected]₂@MnFe₂O₄ magnetic microporous nanocomposite (MMNC) as a novel adsorbent was investigated. The FTIR, FESEM, TEM, XRD, BET and VSM were used to characterize the prepared adsorbent. The analysis of dyes concentration in a binary mixture was investigated using zero-order and first order derivative spectrophotometry. The individual effects and possible interactions between the various parameters were investigated by response surface methodology (RSM). The optimized values of sonication time, adsorbent mass, MG and MO concentrations were found to be 15 min, 0.005 g, 13 and 10 mg L⁻¹, respectively. The removal percentages for MG and MO were predicted to be 92.5% and 5.9%, respectively. The data matched well with pseudo-second order kinetic model and Langmuir isotherm models. The maximum adsorption capacities were obtained 1010.2 and 78.12 mg g⁻¹ for MG and MO dyes, respectively. Moreover, the magnetic nanocomposite showed that it could selectively adsorbed cationic MG dye from the MG/MO mixture. After reaction, the magnetic adsorbent can be easily separated from the mixture via an external magnetic field and can be effectively regenerated.

在此，合成了磁性金属-有机骨架纳米复合材料（[电子邮件保护] ₂ @MnFe ₂ O ₄）。超声辅助将孔雀石绿（MG）和甲基橙（MO）作为阳离子和阴离子染料同时吸附到[受电子邮件保护] ₂ @MnFe ₂ O _4上磁性微孔纳米复合材料（MMNC）作为新型吸附剂的研究。FTIR，FESEM，TEM，XRD，BET和VSM用于表征所制备的吸附剂。使用零阶和一阶导数分光光度法研究了二元混合物中的染料浓度分析。通过响应面方法（RSM）研究了各个参数之间的个体影响和可能的相互作用。发现超声处理时间，吸附剂质量，MG和MO浓度的最佳值为15分钟，0.005 g，13和10 mg L ^-1， 分别。MG和MO的去除率预计分别为92.5％和5.9％。数据与伪二阶动力学模型和Langmuir等温线模型很好地匹配。MG和MO染料的最大吸附容量分别为1010.2和78.12 mg g ^-1。此外，磁性纳米复合材料表明它可以从MG / MO混合物中选择性吸附阳离子MG染料。反应后，磁性吸附剂可以通过外部磁场容易地从混合物中分离出来，并且可以有效地再生。