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第 10 期 林 壮，等: β-环糊精交联树脂的合成及其对双酚酸的吸附 ·1723·

水作用控制着吸附速率。pH≥4.3 时 β-CDP 吸附性 响，控制着整个反应的速率。β-CDP 再生性能优异，
能下降进一步证实了这一点，因为 pH 过高加剧了 使用甲醇进行解吸具有约 90%的解吸能力。虽然
DPA 的电离程度，破坏了吸附过程中氢键的形成。 β-CDP 对 DPA 具有良好的吸附性能，但再生过程中

过滤分离存在过滤速度慢的问题。如果将磁性材料
与 β-CDP 复合，制备具有磁性的吸附材料，使用磁
场分离技术则会使再生过程效率得以提高。采用磁
场将吸附剂悬浮在固定床中使吸附和再生过程更加
高效，会使 β-CDP 在实际应用中更加具有潜力。

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