To guarantee the sustainable development of the nuclear industry, it is vital to have a low-cost, green, and scalable route developed to synthesize efficient adsorbents for rapid and effective remediation of nuclide-contaminated water. In this study, a natural catechol derivative with unsaturated alkyl chain, urushiol, was aminated by mildly thiol-ene click with cysteamine to form a dopamine analogue, which can self-polymerize and trigger the formation of silicate plates into hydrogel framework and in-situ immobilize the potassium copper hexacyanoferrate, an efficient adsorbent, when hexacyanoferrate and excess Cu²⁺ were present in the silicate suspension. The chelation between Cu²⁺, poly-urushiol and hexacyanoferrate that assemble the hybrid hydrogel was confirmed by SEM and XPS and the performance of this hydrogel was evaluated in terms of adsorption capacity (214 mg g^-1), selectivity (K_d>10⁶ mg L^-1), kinetics and reversible self-healing behavior with pleasing results obtained. The economic and nature-sourced property of the urushiol offers a green and novel concept to develop a satisfying adsorbing system for Cs⁺ removal.

为保证核工业的可持续发展，开发低成本、绿色、可扩展的路线来合成高效吸附剂以快速有效地修复核素污染水体至关重要。在这项研究中，具有不饱和烷基链的天然儿茶酚衍生物漆酚通过温和的硫醇烯点击与半胱胺形成多巴胺类似物，该类似物可以自聚合并引发硅酸盐板形成水凝胶框架和原位当硅酸盐悬浮液中存在六氰基铁酸盐和过量的 Cu ²⁺时，固定六氰基铁酸铜钾，一种有效的吸附剂。Cu ²⁺之间的螯合，组装混合水凝胶的聚漆酚和六氰基铁酸酯通过 SEM 和 XPS 确认，并在吸附容量（214  mg  g ^-1）、选择性（K _d >10 ⁶ mg L ^-1）方面评估了该水凝胶的性能，动力学和可逆的自愈行为，获得了令人满意的结果。漆酚的经济和自然来源的特性为开发令人满意的 Cs ⁺去除吸附系统提供了一个绿色和新颖的概念。