结果表明，在pH=6时，N,O-磁性羧甲基壳聚糖吸附效果最好；该吸附剂

结果表明，在pH = 6时，N，O-磁性甲基甲基壳吸附吸附效果最好；该吸附剂随温度的升高，吸附量增大，说明该吸附过程为吸热过程；该吸附剂吸收离子浓度的增大，吸收效果变差；在其他条件一定时，该吸附剂投加量在0.05克时吸收效果最好。

结果表明，在pH=6时，N,O-磁性羧甲基壳聚糖吸附效果最好；该吸附剂随温度的升高，吸附量增大，说明该吸附过程为吸热过程；该吸附剂随着离子浓度的增大，吸附效果变差；在其他条件一定时，该吸附剂投加量在0.05克时吸附效果最好。

The results showed that the adsorption effect of N, o-magnetic carboxymethyl chitosan was the best at pH = 6; the adsorption capacity of the adsorbent increased with the increase of temperature, indicating that the adsorption process was endothermic; the adsorption effect of the adsorbent became worse with the increase of ion concentration; when other conditions were fixed, the adsorption effect was the best when the dosage of the adsorbent was 0.05 G.<br>