摘要
以对叔丁基杯[4]芳烃为原料,用对氨基苯甲酸对其上沿进行修饰,获得了一种新型偶氮杯[4]芳烃羧基衍生物功能化材料5,11,17,23-四(4-羧基苯偶氮基)-25,26,27,28-四羟基杯[4]芳烃(p-TTPTA)。采用FT-IR、~1H NMR、SEM和EDS等方法对其进行结构表征,并探讨了吸附时间、溶液pH值、吸附材料用量、铀初始浓度及环境温度等对p-TTPTA吸附铀的影响。结果表明:所合成的p-TTPTA是一种构象稳定、表面粗糙、比表面积较大、能与铀离子配位的化合物;在溶液pH=5、铀初始浓度为20mg/L、p-TTPTA用量为20mg、吸附时间为8h、温度为30℃条件下,p-TTPTA对铀的吸附效果最佳,吸附率达93%,说明p-TTPTA对铀具有较好的吸附性能。
A novel functionalization material,5,11,17,23-4（4-hydroxyazobenzene）-25,26,27,28-calix[4]arene（p-TTPTA）,was synthesized.This material was based on thecalix[4]arene and decorated with p-aminobenzoic acid on the edege of the calix [4]arene.The p-TTPTA was characterized by FT-IR,~1H NMR,SEM and EDS.The effects of adsorption time,pH,dosage of p-TTPTA,initial uranium concentration and temperature on the adsorption of uranium by p-TTPTA were investigated.The results show that the p-TTPTA has stable conformation,rough surface,wide specific surface area and chemical compound with uranium.The optimal condition for the adsorption of uranium by p-TTPTA is pH=5,the initial uranium concentration of 20 mg/L,p-TTPTA dosage of 20 mg,time of 8 hand temperament of 30 ℃.According to above analysis,p-TTPTA can adsorb better uranium.
作者
杨柱
刘永
杨洋
彭国文
肖方竹
何鹏
王成
YANG Zhu1,2,LIU Yong1,2,YANG Yang3,PENG Guowen2,4,XIAO Fangzhu2,HE Peng1,2,WANG Cheng4(1. School of Environmental Protection and Safety Engineering, University of South China, Hengyang 421001, China , 2. Hunan Province Engineering Technology Research Center of Uranium Tailings Treatment, University of South China, Hengyang 421001, China , 3. School of Chemzistry and Chemzical Engineering, Central South University, Changsha 410083, China , 4. School of Chemzistry and Chemzical Engineering, University of South China, Hengyang 421001, Chin)
出处
《原子能科学技术》
EI
CAS
CSCD
北大核心
2018年第6期966-972,共7页
Atomic Energy Science and Technology
基金
国家自然科学基金资助项目(51574152
11705085)
环境保护部安全监管项目资助(1620
1721)
湖南省自然科学基金资助项目(2017JJ4009
2017JJ2232
2017JJ3262)
湖南省科技厅中央引导地方科技发展专项资金资助项目(2017CT5006)
湖南省研究生科研创新基金资助项目(CX2016B457)
