School of Chemistry and Materials Science, Ludong University, Yantai 264025, China.
School of Chemistry and Materials Science, Ludong University, Yantai 264025, China.
Ecotoxicol Environ Saf. 2024 Oct 1;284:116926. doi: 10.1016/j.ecoenv.2024.116926. Epub 2024 Aug 27.
Metal-organic frameworks (MOFs) exhibit high chemical stability and porosity, and have been widely applied in various fields including selective adsorption and separation, sensors, and catalysis. When combined with FeO, they effectively address issues such as aggregation of FeO particles and the difficulty in recovering MOFs as catalysts. Therefore, in this study, we used a simple solvothermal method as a catalyst to synthesize a high specific surface area magnetic composite FeO@MOF-74, which was used to catalyze the degradation of bisphenol A (BPA) and amino black 10B in wastewater. We activated NaSO to generate radicals for oxidizing and degrading BPA and amino black 10B. Experimental results showed that at 35 °C, with FeO@MOF-74 (FeO: MOF-74=1:1) concentration of 0.2 g/L and NaSO concentration of 2 g/L, the catalytic effect is efficient and economical. Meanwhile, removal rates of BPA and amino black 10B exceeded 95.58 % over a broad pH range (pH 3-9). Furthermore, even after multiple cycles of use, FeO@MOF-74 maintained catalytic degradation rates of BPA and amino black 10B above 93.24 % and 95.01 %, respectively. Additionally, in water samples, removal rates of BPA and amino black 10B exceeded 91.55 %. This study provides a new and efficient catalyst material for wastewater treatment, which is expected to play an important role in environmental remediation.
金属有机骨架（MOFs）具有高化学稳定性和孔隙率，已广泛应用于选择性吸附和分离、传感器和催化等领域。当与 FeO 结合时，它们有效地解决了 FeO 颗粒聚集和 MOFs 作为催化剂难以回收的问题。因此，在这项研究中，我们使用简单的溶剂热法作为催化剂，合成了高比表面积的磁性复合 FeO@MOF-74，用于催化废水中双酚 A（BPA）和氨基黑 10B 的降解。我们激活了 NaSO 以生成自由基，用于氧化和降解 BPA 和氨基黑 10B。实验结果表明，在 35°C 时，当 FeO@MOF-74（FeO: MOF-74=1:1）浓度为 0.2 g/L，NaSO 浓度为 2 g/L 时，具有高效且经济的催化效果。同时，在广泛的 pH 范围内（pH 3-9），BPA 和氨基黑 10B 的去除率均超过 95.58%。此外，即使经过多次循环使用，FeO@MOF-74 仍能保持 BPA 和氨基黑 10B 的催化降解率分别超过 93.24%和 95.01%。此外，在水样中，BPA 和氨基黑 10B 的去除率均超过 91.55%。本研究为废水处理提供了一种新的高效催化剂材料，有望在环境修复中发挥重要作用。
