Magnetic nanoparticles owing to their superparamagnetic behaviour and specific reactive sites are facilitated to regenerate and reuse. Our present study determines the cointegration of the plant extracts of Cynodon dactylon and Muraya koenigii with the magnetic nanoparticle coated with silica layer and surface engineered with a specific amine group. The cointegrated magnetic nano adsorbent is characterized for its analytical feature and batch studies are performed to remove zinc (Zn²⁺) copper (Cu²⁺) metal ions. Fourier transform infrared spectroscopy reveals the presence of functional entities such as NH₂, Si-O-Si, C=C. The size of the cointegrated nano adsorbent (12–30 nm) was confirmed by field emission scanning electron microscopy whereas, a high-resolution transmission electron microscope affirms the nanosize of the particle constituted around 20 nm. Energy dispersive x-ray analysis confirms the presence of elements like Fe, N, Si and was confirmed by X-ray diffraction analysis and vibrating sample magnetometer affirms the superparamagnetic nature with the high magnetic saturation value (M_s – 30 emug⁻¹). The cointegrated nano adsorbent reveals the maximum adsorption capacity of Zn²⁺ as 78.24 mg.g⁻¹ and Cu²⁺ as 81.76 mg.g⁻¹ of the adsorbent under the optimized conditions of contact time 45 min, pH 6.0 and temperature 35 °C. Kinetics such as pseudo-first-order, pseudo-second-order, Elovich, intraparticle diffusion and isotherm studies like Langmuir, Freundlich, Dubinin-Radushkevich and Temkin were performed to understand the mechanism of interaction between the nanoadsorbent and metal ions. The reaction system follows the pseudo-second-order kinetics and Langmuir isotherm model for both the Cu²⁺ and Zn²⁺ metal ions. To determine the reusing capacity of the cointegrated nanoadsorbent, the adsorption efficiency was studied for continuous twelve cycles with 80% recovery after subsequent acid treatment.

磁性纳米粒子由于它们的超顺磁性行为和特定的反应位点有利于再生和再利用。我们目前的研究确定了狗牙根和Muraya koenigii的植物提取物与涂有二氧化硅层和表面设计有特定胺基的磁性纳米颗粒的协整性。协整磁性纳米吸附剂以其分析特性为特征，并进行了批量研究以去除锌（Zn ²⁺）铜（Cu ²⁺）金属离子。_{傅里叶变换红外光谱揭示了 NH 2}等功能实体的存在, Si-O-Si, C=C。通过场发射扫描电子显微镜证实了共集成纳米吸附剂的尺寸（12-30 nm），而高分辨率透射电子显微镜证实了粒子的纳米尺寸约为 20 nm。能量色散 X 射线分析证实了 Fe、N、Si 等元素的存在，并通过 X 射线衍射分析证实，振动样品磁力计证实了具有高磁饱和值 (M _s – 30 emug ^-1 ) 的超顺磁性。协整型纳米吸附剂显示Zn ²⁺的最大吸附容量为78.24 mg.g ^-1和Cu ²⁺的最大吸附容量为81.76 mg.g ^-1在接触时间 45 min、pH 6.0 和温度 35 °C 的优化条件下吸附剂的性能。进行了诸如伪一级、伪二级、Elovich、粒子内扩散和等温线研究（如 Langmuir、Freundlich、Dubinin-Radushkevich 和 Temkin）等动力学，以了解纳米吸附剂和金属离子之间的相互作用机制。^{反应体系遵循Cu 2+}和Zn ²⁺金属离子的准二级动力学和Langmuir等温线模型。为了确定共集成纳米吸附剂的再利用能力，研究了连续十二个循环的吸附效率，在随后的酸处理后回收率为 80%。