放射性核素的界面吸附是环境放射化学、地球化学、资源回收等多个研究方向共同关注的重要科学问题。尽管该领域已经有丰富的实验研究，但目前人们对来自不同文献的数据进行横向比较时缺乏对水化学条件以及表面化学物种热力学标准态等关键问题的分析。这对进一步开发或优化吸附材料造成了困扰，也对文献和数据的共享和参考价值提出了挑战。本项目拟对以铀为代表的放射性核素的界面吸附研究进行系统梳理，深度挖掘其元数据，以此对每一种天然或人工材料建立统一的表面络合模型，并选取有代表性的材料进行实验验证。所有汇总的数据和新建立的模型将发布在一个公开、在线且易用的数据库和计算平台，实现对各种吸附材料的客观比较和评价，排除不同的吸附剂、放射性核素浓度，pH，离子强度，络合物浓度以及比表面积等因素的复杂影响。该项目的成果有望为未来的放射性核素污染治理和资源回收的技术研发提供长期的科学指导。

Interfacial adsorption of radionuclides is an important research topic where the interests of environmental radiochemistry, geochemistry and resource recovery converge. While this topic has been heavily dominated by experimental research, the adsorption data from different literature are often unthoughtfully compared without acknowledging the variations of water chemistry conditions and the thermodynamic standard states of surface species. This issue obscures the transparency of the literature and may confuse future endeavors of sorbent material developments. We propose to perform a systematic compilation of the metadata of radionuclide adsorption to various natural or artificial materials in the existing literature. Based on those metadata, we will develop a unified set of surface complexation models, some of which for representative sorbents will be recalibrated with independent experiments. All the normalized and highly organized metadata as well as the newly developed models will be published in an open-access, online and interactive database and simulation platform. Applying our modeling database will enable unbiased evaluation and comparison of various materials, accounting for the complex impacts from the difference in sorbent/sorbate and ligand concentrations, pH, ionic strength and specific surface areas. The product of the project is expected to provide long-lasting insights to the future developments of radionuclide contaminant remediation and resource recovery technologies.