A magnetic multi-amine decorated resin (MmAR-G) was prepared via polymerization, post-crosslinking, and amination reactions for adsorption and coadsorption of tetracycline (TC) and copper (Cu). The results showed that MmAR-G had relatively higher specific surface area, larger pore size, and abundant chelating groups (amino, carbonyl, and hydroxyl groups). Compare with other multi-amine resins, MmAR-G showed maximum uptake for both TC (0.104 mmol/g) and Cu²⁺ (0.385 mmol/g). The higher specific surface area and protonated amine led to higher TC adsorption capacity. The extra hydroxyl introduced by epoxide-opening reaction when amination, carboxyl, neutral and protonated amines can chelate with Cu²⁺ and enhance the adsorption, which was demonstrated by the XPS characterization. In the presence of NaCl, the competing adsorption of Cl⁻decreased the TC adsorption remarkably, and the restrain of the hydrogen bond formation provided more chelation groups and facilitated Cu²⁺ removal. In binary solutes systems, the formation of Cu-TC complexes decreased TC and Cu²⁺ adsorption onto MmAR-G by reducing the affinity. Still, the cumulative adsorption amount for TC and Cu²⁺ onto MmAR-G was highest (0.376 mmol/g). The results showed that MmAR-G was a promising adsorbent for remove and coremove organics and heavy metals in wastewater.

通过聚合，后交联和胺化反应制备四环素（TC）和铜（Cu）的磁性多胺修饰树脂（MmAR-G）。结果表明，MmAR-G具有相对较高的比表面积，较大的孔径和丰富的螯合基团（氨基，羰基和羟基）。与其他多胺树脂相比，MmAR-G对TC（0.104 mmol / g）和Cu ²⁺（0.385 mmol / g）均显示最大吸收。较高的比表面积和质子化胺导致较高的TC吸附能力。胺，羧基，中性和质子化胺发生胺化反应时，通过环氧化物开环反应引入的多余羟基会与Cu ²⁺螯合并通过XPS表征证明了增强的吸附作用。在NaCl，Cl组成的竞争吸附的存在^-显着降低的TC吸附，并且提供了更多的螯合基团，并促进铜的氢键形成的抑制²⁺去除。在二元溶质系统中，Cu-TC络合物的形成通过降低亲和力而降低了TC和Cu ²⁺在MmAR-G上的吸附。尽管如此，TC和Cu ²⁺在MmAR-G上的累积吸附量最高（0.376 mmol / g）。结果表明，MmAR-G是一种有希望的吸附剂，用于去除和共迁移废水中的有机物和重金属。