中文摘要：

羟丙基-β-环糊精（HP-β-CD）与羧基化多壁碳纳米管（COOH-MWNTs）经过聚合反应,形成β-环糊精-碳纳米管（β-CDMWNTs）交聚复合材料。探究了在不同p H、反应时间、铀的初始浓度和吸附剂投加量条件下对铀的吸附能力。结果表明,p H为5、铀浓度为10 mg/L、β-CD-MWNTs吸附60 min后基本处于平衡状态,吸附容量高达18.36 mg/g。准二级动力学模型（R~2〉0.999）和Langmuir等温模型（R2〉0.996）均可拟合其对铀的吸附过程,饱和吸附容量为83.33 mg/g。采用TEM、SEM、EDS和FTIR分析表明,HP-β-CD已被接枝到MWNTs上,而在对铀的吸附过程中,—C=O、—C—O和—OH等基团发挥着重要的作用。

英文摘要：

MWNTs are reacted with HP-β-CD to obtain β-CD-MWNTs with great dispersivity. The effects of p H,initial concentration of uranium,contact time and adsorbent dosage on the adsorption behavior were investigated. The results show that pH = 5,the initial concentration of uranium was 10 mg/L,the adsorption of uranium onβ-CD-MWNTs after 90 min,and the adsorption capacity is 18. 36 mg/g at 25 ℃.Kinetics and isothermal were better fitted by Langmuir isotherm model and pseudo-second-order kinetic model,and the maximum adsorption capacity was 83. 33 mg/g. The composites had been antegrallty made,the —C=O,—C—O and —OH played irreplaceable role by TEM,SEM,EDS and FTIR.