Researchers have developed a new layered sulfide material, InSnS-1, that efficiently and selectively captures radioactive cesium even from strongly acidic solutions, potentially useful for nuclear waste treatment. The material showed high capacity, fast kinetics, and maintained its performance under irradiation, demonstrating promise for real-world applications.

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This study presents a novel layered sulfide material, InSnS-1, demonstrating highly effective and selective cesium capture even in strongly acidic conditions, relevant for nuclear waste treatment. The robust material exhibits excellent acid and radiation resistance, rapid adsorption kinetics, and high capacity. The study also provides valuable insights into the Cs+ removal mechanism through single-crystal structure analysis. While further research on long-term stability, competitive adsorption in complex mixtures, and economic feasibility is needed, the initial findings are promising and warrant a strong rating.