【摘要】 以壳聚糖和改性蒙脱土为原料,制备了改性蒙脱土与壳聚糖复合吸附剂。考察了复合吸附剂用量、显色剂双硫腙用量、溶液pH、反应温度及反应时间对 Cu²⁺吸附率的影响。结果表明,在复合吸附剂用量0.4 mL,吸附时间30 min,显色剂用量1.5 mL,溶液 pH 5.5～6.5,Cu²⁺浓度（0.1～0.5）×10^-3mg·mL^-1,反应温度60℃的条件下,复合吸附剂对 Cu²⁺的吸附率可达90%以上。更多还原

【Abstract】 Modified montmorillonite clay-chitosan compounded adsorbent was prepared from chitosan and modified montmorillonite clay as raw material and the effects of dosage of compounded absorbent and diphenyl- thiocarbazone as developer,pH of solution,reaction temperature,and reaction time on the absorbing behaviors towards Cu²⁺ were examined.The result showed that the adsorption rate of compounded absorbent towards Cu²⁺ was over 90% under the conditions as follows:adsorbent 0.4 mL,adsorption time 30 min,diphenylthiocarbazone 1.5 mL,pH 5.5-6.5,the concentration of Cu²⁺ （0.1-0.5）×10^-3 mg/mL,reaction temperature 60 ℃.更多还原