A multi-functionalized Na-Y/ZnO/NH₂/SH composite adsorbent was synthesized for Pb²⁺ and Ni²⁺ removal from single and binary aqueous systems. The prepared composites were characterized by FTIR, FESEM, XRD, BET, and N₂ adsorption–desorption techniques. The effect of ZnO nanoparticles, amine, and thiol functional groups on the adsorption performance was studied in a batch system. The adsorption behavior of Pb²⁺ and Ni²⁺ ions was evaluated as a function of initial metal concentration, contact time, pH, and temperature. The adsorption process of both Pb²⁺ and Ni²⁺ ions followed the double-exponential kinetics model. Also, the investigation of isotherm models exhibited a monolayer adsorption onto the synthesized composite. The maximum adsorption capacity of Na-Y/ZnO/NH₂/SH composite was found to be 177.9 mg/g for Ni²⁺ ions and 295.4 mg/g for Pb²⁺ ions. The synthesized Na-Y/ZnO/NH₂/SH composite was regenerated multiple times showing a promising adsorbent with high regeneration efficiency. In a binary system, the inhibitory influence of Pb²⁺ ions on the Ni²⁺ adsorption was greater than the inhibitory influence of Ni²⁺ ions on the Pb²⁺ adsorption.

合成了一种多功能的Na-Y / ZnO / NH ₂ / SH复合吸附剂，用于从单一和二元水溶液体系中去除Pb ²⁺和Ni ²⁺。通过FTIR，FESEM，XRD，BET和N ₂吸附-解吸技术对制备的复合材料进行了表征。在间歇系统中研究了ZnO纳米颗粒，胺和硫醇官能团对吸附性能的影响。根据初始金属浓度，接触时间，pH和温度，评估了Pb ²⁺和Ni ²⁺离子的吸附行为。Pb ²⁺和Ni ²⁺的吸附过程离子遵循双指数动力学模型。同样，等温模型的研究表明在合成的复合材料上有单层吸附。发现Na-Y / ZnO / NH ₂ / SH复合材料的最大吸附容量对Ni ²⁺离子为177.9 mg / g，对Pb ²⁺离子为295.4 mg / g 。合成的Na-Y / ZnO / NH ₂ / SH复合材料可再生多次，显示出前景广阔的吸附剂，再生效率高。在二元系统中，Pb ²⁺离子对Ni ²⁺吸附的抑制作用大于Ni ²⁺离子对Pb ²⁺吸附的抑制作用。