Chemometric experimental design methods were used to optimize the adsorption of Zr(IV) ions from an aqueous solution. Tributyl phosphate functionalized magnetic nanoparticles (TBPFMNPs) were used as a novel adsorbent for the adsorption of Zr(IV) ions. The effect exerted on the adsorption process by the adsorbent amount (mg), TBP/MNP ratio (w/w, %), and concentration of Zr(IV) in aqueous solutions (mg/L) was studied. Two-level factorial design was used, with the other parameters kept constant in the batch experiments. The initial Zr concentration was varied from 3.5 to 70 ppm with 9 mg of the adsorbent. The maximum uptake, 93%, was reached at the initial zirconium concentration of 35 ppm. The maximum distribution coefficient under these conditions reached 15140 mL/g.

中文翻译：

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水溶液中Zr（IV）离子作为新型吸附剂在TBP-表面改性的磁性Fe 3 O 4纳米颗粒上的吸附化学计量研究

化学计量学实验设计方法用于优化Zr（IV）离子从水溶液中的吸附。磷酸三丁酯官能化的磁性纳米颗粒（TBPFMNPs）被用作吸附Zr（IV）离子的新型吸附剂。研究了吸附量（mg），TBP / MNP比（w / w，％）和水溶液中Zr（IV）的浓度（mg / L）对吸附过程的影响。使用两级因子设计，在批处理实验中其他参数保持不变。Zr的初始浓度从9吸附剂的3.5 ppm更改为70 ppm。在锆的初始浓度为35 ppm时达到最大吸收量93％。在这些条件下的最大分配系数达到15140 mL / g。