A novel Pd(II) ion-imprinted polymer (Pd(II)-AAP-IIP@VMWCNTs) was constructed by using 2-(N-allyl)aminopyridine (AAP), vinyl functionalized multi-walled carbon nanotubes (VMWCNTs), ethylene glycol dimethacrylate (EGDMA) and Na₂PdCl₄ as functional monomer, carrier, cross-linker and template ions, respectively. The structure, morphology, adsorption property and applicability as adsorbent in solid phase extraction were characterized by Fourier transform infrared (FTIR) spectroscopy, transmission electron microscopy (TEM), scanning electron microscopy (SEM), binding experiment and solid phase extraction (SPE) experiment, respectively. The equilibrium adsorption capacity and imprinting factor of Pd(II)-AAP-IIP@VMWCNTs for Pd(II) were found to be 9.053 mg/g and 3.46, respectively. The SPE column packed with Pd(II)-AAP-IIP@VMWCNTs displayed good adsorption selectivity to Pd(II). The adsorption rate and extraction rate of this column to Pd(II) were more than 90% and 74%, but below 40% and 15% to the other coexisting ions under the optimized SPE conditions. The obtained Pd(II)-AAP- IIP@VMWCNTs-based SPE method could be combined with inductively coupled plasma optical emission spectroscopy (ICP-OES) for determination of Pd(II) in environmental water. The recoveries were in the range of 87.2%–91.6% with the relative standard deviations of 2.5%–6.8%.

使用2-( N-烯丙基)氨基吡啶(AAP)、乙烯基功能化多壁碳纳米管(VMWCNTs)、乙烯构建了一种新型的Pd(II)离子印迹聚合物(Pd(II)-AAP-IIP@VMWCNTs)二甲基丙烯酸乙二醇酯 (EGDMA) 和 Na ₂ PdCl ₄分别作为功能单体、载体、交联剂和模板离子。通过傅里叶变换红外（FTIR）光谱、透射电子显微镜（TEM）、扫描电子显微镜（SEM）、结合实验和固相萃取（SPE）实验对结构、形貌、吸附性能和作为吸附剂在固相萃取中的适用性进行了表征。 ， 分别。发现 Pd(II)-AAP-IIP@VMWCNTs 对 Pd(II) 的平衡吸附容量和印记因子分别为 9.053 mg/g 和 3.46。填充 Pd(II)-AAP-IIP@VMWCNTs 的 SPE 柱对 Pd(II) 显示出良好的吸附选择性。在优化的SPE条件下，该柱对Pd(II)的吸附率和萃取率分别大于90%和74%，而对其他共存离子的吸附率和萃取率分别低于40%和15%。所获得的基于 Pd(II)-AAP-IIP@VMWCNTs 的 SPE 方法可以结合电感耦合等离子体发射光谱 (ICP-OES) 来测定环境水中的 Pd(II)。回收率范围为 87.2%–91.6%，相对标准偏差为 2.5%–6.8%。