期刊论文

Magnetic Functionalized Modified Amine Oxime Derivative of Calix[4] Arene and Its Adsorption Property for Uranium

中文

原子能科学技术

1000-6931

2017

51

5

783-789

10.7538/yzk.2017.51.05.0783

51574152:国家自然科学基金 11205084:国家自然科学基金 :湖南省环境保护厅科研项目 CX2016B438:湖南省研究生创新科研项目

本校为第一机构

以氨基化改性磁性纳米Fe_3O_4粒子为载体,将杯[4]芳烃胺肟衍生物进行磁性功能化改性,制备得到立体构象稳定、与UO~(2+)2空间配位构型匹配的杯[4]芳烃胺肟衍生物磁性功能材料(MFM-AOCA)。并采用红外光谱、扫描电镜进行了结构表征。考察了溶液pH值、铀初始浓度、MFM-AOCA用量和吸附时间等因素对吸附的影响。结果表明:杯[4]芳烃胺肟衍生物磁性功能修饰后,具有较大的比表面积,其吸附铀的最佳条件是pH值为3.5、铀初始浓度为40 mg/L、吸附剂用量为40 mg和吸附时间为3.5 h。吸附动力学模型和吸附等温模型研究表明,MFM-AOCA对铀的吸附动力学过程符合准二级动力学模型,所得到的相关系数大于0.99;吸附等温...

Using amino modified magnetic Fe3O4nanoparticles as carrier, a novel magnetic functionalization material (MFM-AOCA) with very stable three-dimensional conformation and matching with UO22+space configuration was obtained through magnetic functionalized modified amine oxime derivatives of calix[4] arene. The structure of MFM-AOCA was characterized by FT-IR and SEM. The effects of pH, initial concentration of uranium, MFM-AOCA dosage and adsorption time on the adsorption of uranium on MFM-AOCA were investigated. The results show that the amine oxime derivatives of calix[4] arene is magnetic funct...