In this research, a novel magnetic cobalt ion imprinted adsorbent (Co(II)-MIIP) was synthesized by use of magnetic SBA-15 core-shell. It was functionalized by dithizone, and after identification by various techniques was used for removal of cobalt from aquatic systems. The uptake of cobalt proceeded very fast and achieved to equilibration within 5 min at which 74 mg g-1 of cobalt was adsorbed at pH = 8 with adsorbent dose of 0.15 g. The ion imprinted sorbent exhibited good selectivity towards cobalt ions. Separation and recovery of the used sorbent was carried out respectively by use of magnetic field and by use of HNO3 (0.1 M), and 85% of the initial capacity was obtained after seven 7 regeneration cycles. Different isotherm models, and error analysis were used to evaluate the experimental data. Thermodynamic, and kinetic evaluations showed that sorption process was endothermic, and described by second order kinetic model (R2 > 0.99). The equilibrium was established within five min.

中文翻译：

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基于功能化SBA-15的高选择性磁性钴离子印迹聚合物的制备，用于从水溶液中去除Co2 +。

在这项研究中，利用磁性SBA-15核壳合成了一种新型的磁性钴离子印迹吸附剂（Co（II）-MIIP）。它通过双硫th功能化，并在通过各种技术鉴定后用于从水生系统中去除钴。钴的吸收进行得非常快，并在5分钟内达到平衡，此时在pH = 8的条件下以0.15 g的吸附剂吸附了74 mg g-1的钴。离子印迹吸附剂对钴离子表现出良好的选择性。通过使用磁场和使用HNO3（0.1 M）分别进行使用过的吸附剂的分离和回收，经过7个7次再生循环后，初始容量达到了85％。使用不同的等温线模型和误差分析来评估实验数据。热力学 动力学评价表明吸附过程是吸热的，并用二阶动力学模型描述（R2> 0.99）。在五分钟内建立平衡。