Metal-organic frameworks (MOFs) based on amino acids and their derivatives are biocompatible and environmentally friendly and have excellent practical application value in wastewater treatment. In this work, four MOFs based on aspartic acid derivatives were synthesized using Zr(IV) as the central ions and aspartic acid, succinic acid, fumaric acid, and malic acid as organic ligands. These were used for the simultaneous removal of phosphorus and arsenic from wastewater. The results showed that the maximum adsorption capacities of the aspartic acid-based Zr-asp MOF for phosphorus and arsenic(V) were 88.30 mg P g⁻¹, 109.75 mg As g⁻¹, respectively, in a single system, and 32.00 mg P g⁻¹ and 59.75 mg As g⁻¹, respectively, in a binary system of coexisting phosphorus and arsenic; these capacities were over a broad pH range of 5.0–9.0. Also, Zr-asp can be recycled at least 4 times. The Langmuir isothermal adsorption model and pseudo-second-order model can be employed to describe the adsorption behavior of phosphorus and arsenic(V) well on the MOFs based on aspartic acid derivatives in both the single-pollutant and two-pollutant systems. The mechanism of phosphorus and arsenic(V) reaction on MOFs was mainly electrostatic attraction and coordination reaction accompanied by ligand exchange, and the hydroxyl group on the surface of the material plays a key role. All the results indicated that the synthesized MOFs based on aspartic acid derivatives are ideal eco-friendly candidates for phosphorus and arsenic(V) removal in complex actual bodies of water.

基于氨基酸及其衍生物的金属有机框架（MOFs）具有生物相容性和环境友好性，在废水处理中具有优异的实际应用价值。在这项工作中，以 Zr(IV) 为中心离子，以天冬氨酸、琥珀酸、富马酸和苹果酸为有机配体，合成了四种基于天冬氨酸衍生物的 MOF。这些用于同时去除废水中的磷和砷。结果表明，基于天冬氨酸的 Zr-asp MOF在单一体系中对磷和砷 (V) 的最大吸附容量分别为 88.30 mg P g ^-1、109.75 mg As g ^-1和 32.00 mg P g ^-1和 59.75 mg As g ^-1，分别在磷和砷共存的二元系统中；这些容量在 5.0–9.0 的宽 pH 范围内。此外，Zr-asp 至少可以循环使用 4 次。Langmuir 等温吸附模型和伪二级模型可以很好地描述单污染物和双污染物系统中磷和砷（V）在基于天冬氨酸衍生物的 MOFs 上的吸附行为。磷和砷(V)在MOFs上的反应机理主要是伴随着配体交换的静电吸引和配位反应，材料表面的羟基起着关键作用。所有结果表明，基于天冬氨酸衍生物合成的 MOF 是在复杂的实际水体中去除磷和砷 (V) 的理想环保候选物。