Biomass materials have gained considerable attention as sustainable and renewable resources for the production of adsorbents. However, there remain significant challenges to their application scale-up, such as complex production or processing methods, poor stability, high cost, and low adsorption capacity. Herein, we report an environmentally friendly protein-polysaccharide complex that exhibits excellent removal efficiency of toxic metal ions. Through amyloid-mediated coacervation, the bovine serum albumin (BSA) and sodium carboxymethyl cellulose (CMC) complex, which can be formed within 1 min. The adsorbent is effective for the simultaneous removal of multiple toxic metal ions species (Hg²⁺, Cr³⁺, Pb²⁺, Cd²⁺, As³⁺, Ni²⁺, and Co²⁺) and radioactive elements (uranium) from tap water (at <1 ppm) in 10 min, meeting World Health Organization limits. Moreover, the biomass adsorbent can efficiently capture uranium ions (188.2 mg/g) from simulated seawater, which is 4.5 times higher than that achievable with pristine activated carbon, at a 13- to 360-fold cost reduction.

作为生产吸附剂的可持续和可再生资源，生物质材料已受到相当多的关注。但是，它们的应用规模扩大仍然面临重大挑战，例如复杂的生产或加工方法，稳定性差，成本高和吸附能力低。在本文中，我们报告了一种环保蛋白-多糖复合物，该复合物具有出色的去除有毒金属离子的效率。通过淀粉样蛋白介导的凝聚，可以在1分钟内形成牛血清白蛋白（BSA）和羧甲基纤维素钠（CMC）复合物。该吸附剂对于同时去除多种有毒金属离子（Hg 2 ⁺，Cr ³⁺，Pb 2 ⁺，Cd 2 ⁺，As ³⁺，世界^{最高水平的}自来水（<1 ppm）中的放射性元素（铀，Ni ²⁺和Co ²⁺），铀（Ni ²⁺和Co ²⁺）达到了限值。此外，生物质吸附剂可以从模拟海水中有效捕获铀离子（188.2 mg / g），这比使用原始活性炭可获得的铀离子高4.5倍，而成本却降低了13到360倍。