In this work, a new material containing chitosan(CS)-hexachlorocyclotriphosphazene (HP) composite was synthesized with polyphosphoric acid as the cross-linking agent for the effective removal of uranium(VI) from aqueous solution. The prepared material was characterized by FTIR, EDS, SEM, BET and XPS. According to batch experiments, its adsorption equilibrium (Q_e = 398.8 mg g⁻¹) was reached within 50 min at pH 6.0. The adsorption process could be well fitted to the pseudo-second-order model and the Langmuir model. The thermodynamic analysis indicated that the adsorption was an exothermic and spontaneous process. Furthermore, the CS-HP has superior absorption reusability. This study proved that CS-HP could be considered as the highly efficient and sustainable material for removal of uranium(VI) from aqueous solution.

在这项工作中，以多磷酸为交联剂合成了一种含有壳聚糖（CS）-六氯环三磷腈（HP）复合材料的新材料，以有效去除水溶液中的铀（VI）。制备的材料通过 FTIR、EDS、SEM、BET 和 XPS 进行表征。根据批量实验，其吸附平衡（Q _e  = 398.8 mg g ^-1) 在 50 分钟内达到 pH 值 6.0。吸附过程可以很好地拟合伪二阶模型和朗缪尔模型。热力学分析表明吸附是一个放热自发过程。此外，CS-HP 具有优异的吸收重复使用性。该研究证明 CS-HP 可以被认为是从水溶液中去除铀 (VI) 的高效且可持续的材料。