To withstand the complex natural environment and ecological system in the ocean, adsorbents with high strength, rapid rate, and antifouling ability are urgently needed for uranium extraction. Herein, instead of the traditional poly(amidoxime) structures, we design an anti-adhesive adsorbent (Anti-LS/SA) by conjugating functional ligands of salicylaldoxime (SA) and hyaluronic acid (HA) on the porous biomass via a facile one-step process. The interconnected microchannels in the porous biomass can accelerate seawater transport, along with the micromolecular uranium-adsorbing ligand, endowing the Anti-LS/SA with a very fast uranium adsorption ability; the average adsorption rates reach up to 131 ± 1.8 mg g^-1 hour^-1 (in uranium spiked seawater with concentration of 8 ppm) and 0.1176 mg g^-1 day^-1 (in natural seawater) in the main adsorption stages, exceeding the currently used oxime-based adsorbents. Owing to the high hydration of HA, the adsorbents exhibit excellent hydrophilicity and anti-bacterial adhesion properties, as demonstrated by the bacteria adhesion testing and extraction experiments in bacteria-spiked seawater. Furthermore, the Anti-LS/SA displays a long service life and a very high tensile strength (62.63 MPa) to withstand strong ocean waves. Kinetics models and XPS data are used to analyze the extraction mechanisms. Considering its high efficiencies, structural advantages, as well as the facile and massive construction, we believe that the Anti-LS/SA will be a promising candidate for the large-scale uranium extraction from seawater.

为了承受海洋中复杂的自然环境和生态系统，迫切需要具有高强度，高速率和防污能力的吸附剂来进行铀提取。在此，我们通过一种简便的方法，通过将水杨醛肟（SA）和透明质酸（HA）的功能性配体缀合在多孔生物质上，代替了传统的聚（ami胺肟）结构，设计了一种防粘吸附剂（Anti-LS / SA）。步骤过程。多孔生物质中相互连接的微通道可以与微分子铀吸附配体一起促进海水运输，从而使Anti-LS / SA具有非常快速的铀吸附能力。平均吸附率达到131±1.8 mg g ^-1 hour ^-1（在浓度为8 ppm的掺铀的海水中）和0.1176 mg g^-1天^-1（在天然海水中）处于主要吸附阶段，超过了目前使用的肟基吸附剂。由于HA的高水合性，吸附剂表现出出色的亲水性和抗菌粘附性能，如细菌掺入海水中的细菌粘附力测试和提取实验所证明的。此外，Anti-LS / SA具有较长的使用寿命和很高的抗拉强度（62.63 MPa），可以承受强烈的海浪。动力学模型和XPS数据用于分析提取机理。考虑到它的高效率，结构优势以及便捷而庞大的结构，我们相信Anti-LS / SA将是从海水中大规模提取铀的有前途的候选者。