In the current study, the methylene blue (MB) dye sorption performance of a new biomagnetic composite (MTNC) synthesized by modification with Fe₃O₄ nanoparticles of industrial tomato processing (Lycopersicon esculentum Mill.) processing solid waste (TW) was investigated. The XRD, BET, SEM, FT-IR and VSM analysis techniques were used in the characterization of MTNC. The specific surface area, total pore volume, micropore volume, mesopore volume, and mean pore diameter values of MTNC are 28.21 m²/g, 0.082 cm³/g, 0.003 cm³/g, 0.079 and 11.06 nm, respectively. Also, its saturation magnetization value was determined to be 24.80 emu/g. The maximum MB sorption capacity of the MTNC determined to be 90.09 mg/g under optimized conditions of the solution pH of 7.0, WPC dosage of 50 mg, contact time of 180 min, and solution temperature of 50 °C. The kinetics and isotherm data were well fitted to the pseudo-second order kinetic and Langmuir isotherm models, respectively. The thermodynamic parameters calculated for the MTNC-MB sorption system proved that the process was spontaneous and endothermic in nature.

在当前的研究中，研究了用工业番茄加工（Lycopersicon esculentum Mill。）的Fe ₃ O ₄纳米粒子改性合成的新型生物磁性复合物（MTNC）对亚甲基蓝（MB）染料的吸附性能。XRD，BET，SEM，FT-IR和VSM分析技术被用于MTNC的表征。MTNC的比表面积，总孔体积，微孔体积，中孔体积和平均孔径值分别为28.21 m ² /g、0.082 cm ³ /g、0.003 cm ³/g、0.079和11.06 nm。另外，其饱和磁化值确定为24.80emu / g。在优化的溶液pH值为7.0，WPC剂量为50 mg，接触时间为180分钟，溶液温度为50°C的最佳条件下，MTNC的最大MB吸附容量为90.09 mg / g。动力学和等温线数据分别很好地拟合了伪二级动力学模型和Langmuir等温线模型。计算得出的MTNC-MB吸附系统的热力学参数证明该过程是自然发生的并且是吸热的。