Fayyazi Mostafa, Solaimany Nazar Ali Reza, Farhadian Mehrdad, Tangestaninejad Shahram
Department of Chemical Engineering, Faculty of Engineering, University of Isfahan, Isfahan, Iran.
Department of Chemistry, University of Isfahan, Isfahan, Iran.
Environ Sci Pollut Res Int. 2022 Oct;29(46):69502-69516. doi: 10.1007/s11356-022-20703-2. Epub 2022 May 14.
The removal of ibuprofen (IBP) from the aqueous solution by metal-organic frameworks such as UiO-66, UiO-66-NH, and a binary MOF (UiO-66@5%HKUST-1) was studied. MOFs were synthesized by the solvothermal method. The synthesized MOFs were characterized by Fourier-transform infrared (FTIR) spectroscopy, X-ray diffraction (XRD), scanning electron microscopy (SEM), and N adsorption. BET results showed that binary MOF and UiO-66-NH had a smaller surface area and were mesoporous compared to UiO-66, while UiO-66 was microporous. Quantitative investigations were conducted to understand the effect of binary and functional UiO-66 in adsorbing IBP and compared to UiO-66. The results showed that UiO-66 with 213 mg/g had the highest adsorption in comparison to other adsorbents. UiO-66-NH showed the lowest adsorption (96 mg/g) due to a large decrease in the surface area. The binary MOF, despite a slight decrease in surface area (1277.6 m/g), had lower adsorption than UiO-66 (147 mg/g) due to the antagonistic effects between the adsorbent and IBP. Furthermore, the pH of the solution had a great effect on the adsorption of IBP, and the results showed that increasing the pH values above 4 reduced the adsorption of IBP.
研究了通过金属有机框架材料（如UiO-66、UiO-66-NH和二元金属有机框架材料UiO-66@5%HKUST-1）从水溶液中去除布洛芬（IBP）的情况。采用溶剂热法合成金属有机框架材料。通过傅里叶变换红外光谱（FTIR）、X射线衍射（XRD）、扫描电子显微镜（SEM）和N吸附对合成的金属有机框架材料进行表征。BET结果表明，与UiO-66相比，二元金属有机框架材料和UiO-66-NH的表面积较小，为介孔结构，而UiO-66为微孔结构。进行了定量研究，以了解二元和功能化UiO-66在吸附IBP方面的效果，并与UiO-66进行比较。结果表明，与其他吸附剂相比，吸附量为213 mg/g的UiO-66具有最高的吸附量。由于表面积大幅下降，UiO-66-NH的吸附量最低（96 mg/g）。二元金属有机框架材料尽管表面积略有下降（1277.6 m²/g），但由于吸附剂与IBP之间的拮抗作用，其吸附量低于UiO-66（147 mg/g）。此外，溶液的pH值对IBP的吸附有很大影响，结果表明，将pH值提高到4以上会降低IBP的吸附量。
