双金属与多金属复合吸附剂去除水体氟化物的研究进展
Research Progress on Bimetallic and Multimetallic Composite Adsorbents for Fluoride Removal from Aqueous Solutions
DOI: 10.12677/ms.2026.164087, PDF,   
作者: 李云飞, 孙同飞:武汉工程大学化学与环境工程学院,湖北 武汉;曾思恬:武汉工程大学兴发矿业学院资源与安全工程学院,湖北 武汉
关键词: 多金属吸附剂层状双氢氧化物金属有机框架Multimetallic Adsorbents Layered Double Hydroxides Metal-Organic Frameworks Fluoride
摘要: 氟化物作为水体常见污染物,过量排放导致严重环境与健康问题,如氟斑牙和骨氟中毒。本文综述了双金属及多金属复合吸附剂在水体氟去除中的研究进展,聚焦吸附法作为高效、低成本处理技术的优势。常见的双金属体系包括Fe-Al、Fe-Zr、Mg-Al等氧化物/氢氧化物,以及LDH层状结构;多金属组合如Mg-La-Fe、Mg-Ce-Mn等通过协同效应提升吸附容量和选择性;此外,金属–非金属复合(如Al-Zr改性生物炭)和MOF-on-MOF异质结构(如Ce/Zr-MOF)展现出高比表面积和抗干扰能力。吸附机理主要涉及离子交换、静电吸引、内球络合和表面沉淀,多金属位点互补显著提高性能,这些材料均表现出良好的选择性和较好的吸附性能,克服单一金属的pH敏感性,适用于复杂水体。未来研究应注重绿色合成、低成本原料和工业应用,推动氟资源回收与可持续治理。
Abstract: Fluoride, as a common pollutant in water bodies, poses severe environmental and health risks due to excessive discharge, such as dental fluorosis and skeletal fluorosis. This review summarizes the research progress on bimetallic and multimetallic composite adsorbents for fluoride removal from water, focusing on the advantages of adsorption as an efficient and low-cost treatment technology. Common bimetallic systems include Fe-Al, Fe-Zr, and Mg-Al oxides/hydroxides, as well as LDH layered structures; multimetallic combinations, such as Mg-La-Fe and Mg-Ce-Mn, enhance adsorption capacity and selectivity through synergistic effects; additionally, metal-nonmetal composites (e.g., Al-Zr modified biochar) and MOF-on-MOF heterostructures (e.g., Ce/Zr-MOF) exhibit high specific surface areas and strong anti-interference capabilities. The adsorption mechanisms primarily involve ion exchange, electrostatic attraction, inner-sphere complexation, and surface precipitation. The complementarity of multimetallic sites significantly improves performance, demonstrating good selectivity and adsorption efficiency, overcoming the pH sensitivity of single-metal materials, and suitability for complex water matrices. Future research should prioritize green synthesis, low-cost raw materials, and industrial applications to promote fluoride resource recovery and sustainable management.
文章引用:李云飞, 孙同飞, 曾思恬. 双金属与多金属复合吸附剂去除水体氟化物的研究进展[J]. 材料科学, 2026, 16(4): 213-221. https://doi.org/10.12677/ms.2026.164087

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