吸附——氧化协同去除铊的材料研究进展

傅 一丁
湖南工业大学

摘要


铊（Tl）具有极高毒性且以迁移性强的Tl（I）为主，使传统水处理难以实现深度去除。“吸附—氧化协同机制”通过吸附富集Tl（I）并在界面上将其部分氧化为更易固定的Tl（III），成为当前最具潜力的技术路径。本文综述了锰氧化物、硫化锰、碳基材料及金属有机框架（MOFs）在协同去除Tl（I）方面的研究进展。锰氧化物依托隧道结构、氧空位与价态循环实现“嵌入—配位—氧化”协同；硫化锰材料通过Tl2S沉淀、Mn0还原与络合实现多机制耦合；碳基材料凭借多级孔结构与含氧官能团完成“富集—配位—部分氧化”；MnO2@HKUST-1则兼具微孔限域与异质界面氧化优势。最后讨论了协同体系的反应驱动力与工程化挑战，并提出面向缺陷调控和界面构建的材料设计方向。

关键词


铊；吸附——氧化协同；硫化锰；金属有机框架材料；氧空位；复合材料

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DOI: http://dx.doi.org/10.12361/2661-3506-08-02-154815

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