In this work, for the first time, a new magnetic cadmium-based MOFs (Fe₃O₄@Cd-MOF) was successfully synthesized in a green way and then modified with chitosan (CS) in the microsphere form (Fe₃O₄@Cd-MOF@CS). The obtained materials were fully characterized by several techniques. In the following, the efficiency of Fe₃O₄@Cd-MOF@CS was explored for the removal of amoxicillin (AMX). The outcome of the adsorption study showed that the removal efficiency is affected by CS and reaches its optimum at pH 8 and contact time of 240 min. Under optimized conditions, over 75% of AMX was removed. The kinetic and the isotherm of the adsorption were fit with the pseudo-second-order model and the Langmuir adsorption isotherm respectively. Eventually, the maximum adsorption capacity was obtained ~103.09 mg/g. Interestingly, these findings convince that the newly prepared Fe₃O₄@Cd-MOF@CS could be proposed as a promising magnetically separable adsorbent for antibiotic contaminants removal from the aqueous solution.

在这项工作中，首次以绿色方式成功合成了一种新型磁性镉基MOFs（Fe ₃ O ₄ @Cd-MOF），然后用微球形式的壳聚糖（CS）改性（Fe ₃ O ₄ @Cd-MOF@CS）。获得的材料通过多种技术进行了充分表征。下面，Fe ₃ O ₄的效率@Cd-MOF@CS 被用于去除阿莫西林 (AMX)。吸附研究结果表明，去除效率受 CS 影响，在 pH 8 和接触时间 240 分钟时达到最佳。在优化条件下，超过 75% 的 AMX 被去除。吸附动力学和吸附等温线分别符合拟二级模型和朗缪尔吸附等温线。最终，获得了最大吸附容量~103.09 mg/g。有趣的是，这些发现令人信服，新制备的 Fe ₃ O ₄ @Cd-MOF@CS 可以作为一种有前景的磁性可分离吸附剂，用于从水溶液中去除抗生素污染物。