期刊论文

Extraction of uranium on botanic-organic composite in the salt lake water

中文

应用化工

1671-3206

2021

50

07

1843-1846+1849

10.16581/j.cnki.issn1671-3206.20210419.016

湖南省重点研发计划（2018SK2029）； 湖南省省级立项大学生研究性学习和创新性实验计划项目（356）； 湖南省教育厅科学研究项目（1818C0423）； 2020年湖南省研究生创新课题（CX20200913）；

本校为第一机构

制备一种新型植物有机复合铀吸附剂。用磷酸三丁酯对樟树叶进行改性,得到一种能有效吸附铀的植物有机吸附剂,通过ICP-MS对铀吸附和解吸实验后溶液进行检测得出吸附效率。结果表明,吸附剂用量为0.02 g,溶液pH 8.5,吸附时间为1 h,初始浓度为200μg/L纯溶液的吸附效率可达98.05%。在实验条件不变的条件下,在模拟盐湖水溶液中,吸附时间为12 h,再用0.25 mol/L HNO3解吸12 h,用ICP-MS检测吸附后及解吸后溶液的浓度,当溶液矿化度分别为400,200,100 g/L时,铀的提取率分别为74.25%,82.68%,93.53%。该吸附材料制备简单,成本低廉,在碱性、共存离子等复杂条件下可以有效提取盐湖水中铀,为铀提取提供了一种新...

To preparate a new plant organic composite uranium adsorbent.The camphor leaves were modified with tributyl phosphate to obtain a plant organic adsorbent that can effectively adsorb uranium.The adsorption efficiency of the solution after the uranium adsorption and desorption experiment was detected by ICP-MS.Results shows that when the amount of adsorbent is 0.02 g,the pH of the solution is 8.5,the sorption time is 1 h,and the initial concentration is 200 μg/L,the adsorption efficiency of pure solution can reach 98.05%.Under the fixed experime...