Fe₃O₄@MOF Magnetic Nanocomposites: Synthesis and Applications

Abstract

In this review, we gather a great deal of information about magnetic nanocomposites, which are made from the combination of Fe 3 O 4 magnetic nanoparticles (MNPs) and metal-organic frameworks (MOFs). Due to the high saturation magnetization, biocompatibility, low toxicity, stability, and costeffectiveness, MNPs have attracted a lot of interest in recent years. Furthermore, MOFs, which are porous materials, formed by the connection between organic linkers and metal ions. The combination of MNPs and MOFs results in the formation of magnetic framework composites (MFCs). The information about the MFCs is classified according to their applications and we

Multimode Electron Tomography Sheds Light on Synthesis, Structure, and Properties of Complex Metal‐Based Nanoparticles

“…[3,59,60] As an example, the combination of inorganic metal cores such as plasmonic Au or magnetic Fe 2 O 3 NPs coated with porous and biocompatible surfaces such as silica or metal-organic framework (MOF) structures have been used for controlled photothermal or magnetic-hyperthermal drug delivery devices. [61][62][63] The emerging field of complex hard-soft composite nanomaterials such as "high atomic number" metal nanoparticles encapsulated within "low atomic number" silica or MOF shells, represents a considerable challenge for reliable TEM characterization. As the intensity of HAADF signals is strongly dependent upon atomic number (Z 2 ), a large difference in Z results in an enhanced difference in the collected signal intensity.…”

Preparation of Magnetic Material and Its Application in Wastewater Treatment: A Comprehensive Experiment Based on Blended Teaching

“…(1) 了解水热法制备原理，采用水热法制备Fe3O4@C复合材料； (2) 了解磁性无机纳米复合材料磁性能和晶相表征方法，学习Jade和Origin软件的使用，学习数 据分析； [1] 。 水热反应的原理如下：在特制的密闭反应容器(水热釜)中，以水溶液为反应介质，通过对反应容 器加热，从而在反应容器内部创造一个高温、高压的反应环境，使得在常规条件下难溶或不溶于水 的物质溶解、反应并重结晶，从而得到理想的产物 [2] 。 由材料制备流程示意图(图1)可知，本实验中三氯化铁提供铁源，NaAc水解形成氢氧根离子，氢 氧根与铁配位，产生铁的沉淀，而后配体分解同时NaAc提供静电稳定作用，以达到防止颗粒聚集的 目的，同时有助于乙二醇介导的氯化铁还原为四氧化三铁，进行形貌控制 [3]…”

Synthesis of Magnetic Metal-Organic Frame Material and Its Application in Food Sample Preparation

“…These properties make MMOFs very suitable for the pretreatment and purification of food matrices [55][56][57][58]. At present, various MMOFs composites with different properties have been synthesized using different strategies for food analysis [59][60][61] (Table 1). procedures [62][63][64].…”