a cui-fe 3 o 4 Preparation method of magnetic nanocomposite

Abstract

The invention discloses a preparation method of a CuI-Fe3O4 magnetic nano-composite. According to the preparation method, under the room temperature condition, iodine, copper sulfate, acetone, water, ethyl alcohol and magnetic Fe3O4 nano-powder are mixed in one pot, and a stirring reaction is performed; then the obtained reaction product is subjected to centrifugal separation, distilled water washing and vacuum drying to obtain a target product. The preparation method disclosed by the invention adopts a reaction raw material one-pot preparation technology, is simple in preparation process and low in reaction temperature, and has the advantages of energy saving, environmental protection, high efficiency and safety.

Description

technical field [0001] The invention belongs to the field of nanomaterials and their preparation, in particular to a CuI-Fe 3 o 4 Preparation methods of magnetic nanocomposites. Background technique [0002] CuI is a very versatile substance that can be used as a catalyst for organic synthesis, a resin modifier, an artificial rainfall agent, and a source of iodine in iodized salt. Among them, CuI, as a catalyst, can catalyze a series of coupling reactions involving halogenated hydrocarbons, such as Heck reaction, Suzuki reaction and Ullmann reaction. At present, there are many preparation methods of CuI. For example: element direct reaction method (Yaqing Liu, et.al.Synthesis of nano-CuI and its catalytic activity in the thermal decomposition of ammonium perchlorate, Res. Chem. Intermed., 2015, 41:3885–3892), electrodeposition method ( Takeshi Takeda, et.al. Copper (I)iodide-catalyzed regioselective allylation ofα-(2-pyridylthio)allylstannanes. A new route toδ,ε-unsatura...

AI Technical Summary

Problems solved by technology

Although the existing preparation methods can prepare CuI, there are still some deficiencies, such as: in the preparation process, some need to use complex and expensive equipment, some need to use additives, some need high temperature conditions, and some have relatively high toxicity. Large by-products, or some obtained products have a wide range of particle size distribution

[0003] In addition, due to the small particle size of nano-catalytic materials, it is difficult to recycle in the actual use process, which leads to difficulties in the recycling and reuse of catalysts, thus increasing the amount of catalysts and production costs.

At the same time, the direct discharge of the catalyst also causes environmental pollution.

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