Uranium(VI) is an important strategic resource in the development of nuclear energy with 4.5 billion tons in the seawater. However, because of the low concentration of U(VI) and the presence of multiple competing ions in seawater. It is a significant challenge for extracting U(VI) from seawater. In this study, a series of multi-branched HF-PAA-AO_{n(n =1,2,3,4,5)} adsorption materials were prepared for the extraction of U(VI) from solution, and the adsorption properties of the adsorbents were investigated by batch experiments. The experimental results indicated that the HF-PAA-AO₅ material exhibits an excellent removal rate and the maximum adsorption capacity of HF-PAA-AO₅ is of 550.28 mg/g. Moreover, the adsorbent still maintains a high adsorption efficiency after five adsorption-desorption recycles. Meanwhile, the adsorbent showed superior selectivity and adsorption properties (removal rate > 89%) in modified artificial seawater. Therefore, the HF-PAA-AO₅ composite is considered to be a favorable potential adsorbent for capturing U(VI) from seawater.

铀（VI）是发展核能的重要战略资源，海水中的铀含量为45亿吨。但是，由于U（VI）的浓度低，并且海水中存在多个竞争离子。从海水中提取U（VI）是一项重大挑战。在这项研究中，制备了一系列多支HF-PAA-AO _{n（n  = 1,2,3,4,5）}吸附材料，用于从溶液中萃取U（VI），以及该吸附剂的吸附性能。通过分批实验研究吸附剂。实验结果表明，HF-PAA-AO ₅材料表现出优异的去除速率和HF-PAA-AO的最大吸附容量₅是550.28 mg / g。而且，在五个吸附-解吸循环之后，吸附剂仍保持高吸附效率。同时，该吸附剂在改性人工海水中表现出优异的选择性和吸附性能（去除率> 89％）。因此，HF-PAA-AO ₅复合材料被认为是从海水中捕获U（VI）的有利潜在吸附剂。