The removal and separate recovery of radioactive Cs⁺ and Sr²⁺ remains a challenge for the sustainable development of nuclear energy. A novel adsorbent (ZMPP-CFs) was prepared by in-situ synthesis of zirconium molybdopyrophosphate on collagen fibers to co-adsorb and recover Cs⁺ and Sr²⁺ from radioactive wastewater with good thermal stability and radiation resistance stability. ZMPP-CFs showed high adsorption capacities of 1.125 mmol g⁻¹ for Cs⁺ and 0.445 mmol g⁻¹ for Sr²⁺ in a wide pH range of 4–11. Furthermore, ZMPP-CFs column exhibited excellent simultaneous removal of Cs⁺ and Sr²⁺ with efficiency over 95%, followed by their perfect separation through gradient elution. Significantly, after four cycles of adsorption-desorption-regeneration experiments, ZMPP-CFs column still maintained superior removal rates and excellent separation performance, indicating high application potential. This work provides an effective method for the removal and recovery of radionuclides, which not only purifies nuclear wastewater, realizes the separation and recovery of Cs⁺ and Sr²⁺ for resource utilization, but also develops the application of renewable biomass of collagen fibers to reduce waste accumulation in various aspects.

^{放射性Cs +}和Sr ²⁺的去除和分离回收仍然是核能可持续发展的挑战。在胶原纤维上原位合成焦磷酸钼锆制备了一种新型吸附剂（ZMPP-CFs），用于共吸附回收放射性废水中的Cs ⁺和Sr ²⁺ ，具有良好的热稳定性和耐辐射稳定性。ZMPP-CFs在 4-11 的宽 pH 范围内表现出对 Cs ^+为1.125 mmol g ^-1和对 Sr ²⁺为0.445 mmol g ^{-1的高吸附容量。}此外，ZMPP-CFs 色谱柱表现出出色的同时去除 Cs ⁺和 Sr²⁺ ，效率超过95%，随后通过梯度洗脱将它们完美分离。值得注意的是，经过四次吸附-解吸-再生实验循环后，ZMPP-CFs 柱仍保持了较高的去除率和优异的分离性能，具有较高的应用潜力。^{该工作为放射性核素的去除和回收提供了一种有效的方法，不仅可以净化核废水，实现Cs +}和Sr ²⁺的分离回收，实现资源化利用，还可以开发胶原纤维再生生物质的应用，减少各方面的废物堆积。