壳聚糖/埃洛石复合吸附剂的制备与吸附性能

Preparation of Chitosan / Halloysite Composite Adsorbent and Its Adsorption Properties

将埃洛石分散于壳聚糖的溶液中,利用戊二醛进行交联,制备埃洛石/壳聚糖复合吸附剂,通过红外光谱仪对复合吸附剂进行结构表征分析,进一步研究复合吸附剂对Cr(Ⅵ)离子的吸附性能,通过单因素条件的变化研究了Cr(Ⅵ)离子浓度、吸附剂用量、吸附时间、吸附温度、p H值对复合吸附剂吸附性能的影响,表明复合吸附剂对Cr(Ⅵ)离子的吸附性能比单一组分的埃洛石更加优越。

Halloysite was dispersed into chitosan solution and glutaraldehyde was intorduced as crosslinking agent to prepare the halloysite / chitosan composite adsorbent. The structure of composite adsorbent was analyzed and characterized by infrared spectrometer,and the adsorption property of composite adsorbent on chromium ions was studied. In addition,the effects of the concentration of chromium ions,amount of adsorbent,adsorption temperature and p H value on the adsorption property of composite adsorbent were also studied by single factors experiments. It was shown that the adsorption property of composite adsorbent on chromium ions was better than single halloysite.