Jin Hua, Xu Xinyuan, Yu Xiaoyang, Yu Shihua, Wang Shanshan, Qu Xiaoshu
Jilin Institute of Chemical Technology, 45 Chengde Street, Jilin 132073, China.
Gels. 2024 Mar 19;10(3):208. doi: 10.3390/gels10030208.
A bimetallic organic gel (MOG-Fe/Al) was synthesized through the solvothermal method. The gel state of the product obtained under optimized gel formation conditions is sufficient to carry 2 g of weight for a long time. Scanning electron microscopy (SEM), X-ray diffraction (XRD), Fourier transform infrared (FT-IR) spectroscopy, Brunauer-Emmett-Teller (BET) technique, and X-ray photoelectron spectroscopy (XPS) analysis confirmed the structures and morphologies of the synthesized materials. MOG-Fe/Al, with good stability, excellent durability, and wide applicability, exhibited efficient MO adsorption capacity as high as 335.88 mg/g at 25 °C. Adsorption-influencing factors including solution pH, contact time, and temperature were investigated. The adsorption performance of the bimetallic organic gel was better than that of the monometallic organic gels (MOG-Fe and MOG-Al), and its adsorption processes were in accordance with the pseudo-second-order kinetic and Langmuir isothermal models. The excellent adsorption capacity of the MOG-Fe/Al is due to its surface structure, pore volume, π-π interactions, hydrogen bonds, and electrostatic interactions.
通过溶剂热法合成了一种双金属有机凝胶（MOG-Fe/Al）。在优化的凝胶形成条件下获得的产物的凝胶状态足以长时间承载2克重量。扫描电子显微镜（SEM）、X射线衍射（XRD）、傅里叶变换红外（FT-IR）光谱、布鲁诺尔-埃米特-泰勒（BET）技术和X射线光电子能谱（XPS）分析证实了合成材料的结构和形态。MOG-Fe/Al具有良好的稳定性、优异的耐久性和广泛的适用性，在25℃时表现出高达335.88mg/g的高效MO吸附容量。研究了包括溶液pH值、接触时间和温度在内的吸附影响因素。双金属有机凝胶的吸附性能优于单金属有机凝胶（MOG-Fe和MOG-Al），其吸附过程符合准二级动力学和朗缪尔等温模型。MOG-Fe/Al优异的吸附容量归因于其表面结构、孔体积、π-π相互作用、氢键和静电相互作用。
