Department of Chemistry and Engineering, Heze University, Heze 274500, China.
CAS Key Laboratory of Photovoltaic and Energy Conservation Materials, Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China.
Molecules. 2022 Oct 11;27(20):6812. doi: 10.3390/molecules27206812.
In this paper, a simple and environmentally friendly method was developed for the preparation of highly stable C@FeO composites with controllable morphologies using sodium alginate as the carbon source and the easily obtained α-FeO as the precursors. The morphologies of the as-prepared C@FeO composites, inherited from their corresponding precursors of α-FeO, survived from the annealing treatments, were characterized by the field-emission scanning electron microscopy (FESEM), transmission electron microscopy (TEM), X-ray diffraction (XRD) and inductively coupled plasma-atomic emission spectroscopy (ICP-AES). The C@FeO composites resisted to oxidation, acidification and aggregation, exhibiting porous structures and ferromagnetic properties at room temperature. Moreover, the adsorption performance of the C@FeO composites was evaluated by absorbing MB (methylene blue) in liquid environment. Experiments indicated that the C@FeO composites exhibited highly enhanced adsorption capacities and efficiencies as compared with their corresponding precursors of α-FeO. This generalized method for the synthesis of C@FeO composites provides promising applications for the highly efficient removal of MB from industrial effluents.
本文开发了一种简单且环保的方法，使用海藻酸钠作为碳源，通过容易获得的α-FeO 作为前体制备具有可控形态的高稳定性 C@FeO 复合材料。所制备的 C@FeO 复合材料的形态继承了其相应的α-FeO 前体的形态，在退火处理过程中得以保留，通过场发射扫描电子显微镜（FESEM）、透射电子显微镜（TEM）、X 射线衍射（XRD）和电感耦合等离子体原子发射光谱（ICP-AES）进行了表征。C@FeO 复合材料在室温下具有抗氧化、抗酸化和抗聚集的能力，呈现出多孔结构和铁磁性。此外，还通过在液相环境中吸附 MB（亚甲基蓝）评估了 C@FeO 复合材料的吸附性能。实验表明，与相应的α-FeO 前体相比，C@FeO 复合材料表现出更高的吸附容量和效率。这种合成 C@FeO 复合材料的通用方法为从工业废水中高效去除 MB 提供了有前途的应用。
