Cuprous oxide-metal organic frame composite material and preparation method thereof

A technology of metal-organic framework and cuprous oxide, which is applied in the field of Cu2O-MOFs composite materials and its preparation, can solve the problems of limiting large-scale industrial application and lack of stability, and achieves low production cost, environmentally friendly preparation process and excellent preparation process. simple effect

Inactive Publication Date: 2018-08-17
NANKAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, its lack of sufficient stability

Method used

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  • Cuprous oxide-metal organic frame composite material and preparation method thereof
  • Cuprous oxide-metal organic frame composite material and preparation method thereof
  • Cuprous oxide-metal organic frame composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A Cuprous Oxide-Metal Organic Framework Cu 2 The preparation method of O@ZIF-8 composite material specifically includes the following steps:

[0026] (1), preparation of cuprous oxide nanoparticles (Cu 2 O);

[0027] Mix 5mL of copper chloride aqueous solution with a concentration of 0.08mol / L and 87mL of sodium lauryl sulfate solution with a concentration of 0.027mol / L, place the container in a water bath at 30-35°C for 20min, and under ultrasonic conditions Next, add 16.5 mL of NaOH solution with a concentration of 0.08 mol / L to the mixed solution, continue to sonicate for 10 minutes, add 3.5 mL of hydroxylamine hydrochloride solution with a concentration of 0.08 mol / L to the above mixed solution within 20 seconds, and continue to sonicate for 1 hour; The resulting reaction solution was centrifuged to remove the supernatant, and washed several times with water / absolute ethanol solution and absolute ethanol with a volume ratio of 1:1, and finally obtained a mass conc...

Embodiment 2

[0035] A Cuprous Oxide-Metal Organic Framework Cu 2 The preparation method of O@ZIF-8 composite material specifically includes the following steps:

[0036] (1), preparation of cuprous oxide nanoparticles (Cu 2 O);

[0037] Mix 8mL of copper chloride aqueous solution with a concentration of 0.08mol / L and 110mL of sodium lauryl sulfate solution with a concentration of 0.035mol / L, and place the container in a water bath at 30-35°C for 20 minutes to sonicate. Next, add 23mL of NaOH solution with a concentration of 0.1mol / L to the mixed solution, continue to sonicate for 10min, add 5.1mL of hydroxylamine hydrochloride solution with a concentration of 0.08mol / L to the above mixed solution within 20s, and continue to sonicate for 1 hour; The resulting reaction solution was centrifuged to remove the supernatant, and washed several times with water / dehydrated ethanol solution and absolute ethanol with a volume ratio of 1:1, and finally obtained a mass concentration of 8 mL and a con...

Embodiment 3

[0045] A Cuprous Oxide-Metal Organic Framework Cu 2 The preparation method of O@ZIF-8 composite material specifically includes the following steps:

[0046] (1), preparation of cuprous oxide nanoparticles (Cu 2 O);

[0047] Mix 10mL of copper chloride aqueous solution with a concentration of 0.1mol / L and 153mL of sodium lauryl sulfate solution with a concentration of 0.04mol / L, and place the container in a water bath at 30-35°C for 20 minutes to sonicate. Next, add 32.5 mL of NaOH solution with a concentration of 0.12 mol / L to the mixed solution, continue to sonicate for 10 minutes, add 7.5 mL of hydroxylamine hydrochloride solution with a concentration of 0.12 mol / L to the above mixed solution within 20 seconds, and continue to sonicate for 1 hour; The resulting reaction solution was centrifuged to remove the supernatant, and washed several times with water / absolute ethanol solution and absolute ethanol with a volume ratio of 1:1, and finally obtained a mass concentration o...

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Abstract

The invention discloses a cuprous oxide (Cu20)-metal organic frame (MOFs) composite material and a preparation method thereof. The preparation method of the cuprous oxide-mental organic frame composite material includes the steps of coating silicon dioxide (SiO2) on the surface of the cuprous oxide nanoparticles to protect the same, then coating the CU-20 and the SiO2 inside a ZIF-8 (zeolitic imidazolate framework) crystal, and finally selectively etching to remove the SiO2 so as to obtain the Cu20 and ZIF-8 in a sodium hydroxide solution. The cuprous oxide-metal organic frame composite material and the preparation method thereof have the advantages that with a simple chemical synthesis process to wrapping the unstable cuprous oxide nanoparticles into the MOFs crystal and obtain a sample of the Cu20 and ZIF-8 composite material, oxidation resistance of the material is significantly improved compared with the cuprous oxide nanoparticles, and the composite material can be applied to suchfield as catalysis; the preparation method thereof has the advantages of being simple and controllable, mild in conditions, environment-friendly, low in energy consumption and cost, and suitable forindustrial production.

Description

technical field [0001] The invention belongs to the field of preparation of MOFs-based composite materials, in particular to a Cu 2 O-MOFs composite material and its preparation method. Background technique [0002] Metal-organic frameworks (MOFs), also called porous coordination polymers (PCPs), are a class of periodic polymers formed by self-assembly of metal ions or metal cluster units and organic ligands through coordination. Porous crystalline material with multidimensional network structure. As an emerging porous material, it not only has a highly developed pore structure and super high specific surface area, but also has structural diversity and flexibility in synthesis. Therefore, it is widely used in gas adsorption, storage and separation, optoelectronic materials, catalysis and other fields. [0003] At present, there are many methods for the preparation of composite materials of metal nanoparticles or metal oxide nanoparticles and MOFs, but the preparation meth...

Claims

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Application Information

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IPC IPC(8): C08G83/00
CPCC08G83/008
Inventor 程鹏李博马建功
Owner NANKAI UNIV
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