A method for fabricating a metal-organic framework (MOF) adsorption-catalysis reactor and its uses

Abstract

This invention relates to a method for fabricating a metal-organic framework (MOF) adsorption catalytic reactor and its applications. The method utilizes a printing paste containing specific metal elements (photocurable 3D printing) to prepare a preform with a three-dimensional structure. This preform is then immersed in a precursor solution containing organic ligands, allowing the MOF material to be generated in situ on the surface of the preform, forming a functionalized structure with high binding stability. The resulting MOF adsorption catalytic reactor possesses high specific surface area, selectivity, and structural design flexibility, and can be widely used for adsorbing organic pollutants, heavy metal ions, and gaseous pollutants. It can also be extended to heterogeneous catalytic reaction systems. This invention provides an innovative and promising MOF process platform with high application value for micro-pollution control and the development of functional reaction beds.

Claims

1. A method for fabricating a metal-organic framework (MOF) adsorption catalytic reactor, comprising the following steps: mixing a resin and a metal oxide powder in a solid content ratio using a stirring process to form a printing paste; adjusting a pixel size, a light source wavelength, and a light output power in a photocuring process, placing the printing paste in a paste tank of a photocuring printing apparatus, and performing the photocuring process by scanning the paste tank through a light source of the photocuring printing apparatus, and curing layer by layer to form a preform; placing the preform in a precursor solution for an in-situ generation reaction, through which the metal oxide powder in the preform reacts with the precursor solution on the surface of the preform to generate a metal-organic framework compound, and reacting to form a reactor preform; and subjecting the reactor preform to a drying process in an oven at a temperature of 80°C to 120°C to form a metal-organic framework adsorption catalytic reactor; wherein... The solid content ratio is between 1% and 80%, and the metal oxide powder is selected from one or a combination of the group consisting of 1-nanometer zinc oxide particles, 1-nanometer copper oxide particles, 1-nanometer cobalt oxide particles, 1-nanometer nickel oxide particles, 1-nanometer iron oxide particles, 1-nanometer chromium oxide particles, 1-nanometer aluminum oxide particles, 1-nanometer zirconium oxide particles, 1-nanometer titanium oxide particles and 1-nanometer magnesium oxide particles.

2. The manufacturing method as described in claim 1, wherein in the step of taking a resin and a metal oxide powder and performing a stirring process in a solid content ratio, the resin comprises 1,6-hexanediol diacrylate, isobornyl acrylate, diphenyl(2,4,6-trimethylbenzoyl)phosphine oxide, polyethylene glycol 200 and a dispersant.

3. The manufacturing method as described in claim 1, wherein in the step of placing the preform in a precursor solution to carry out an in-situ generation reaction, through which the metal oxide powder of the preform reacts with the precursor solution on the surface of the preform to generate a metal-organic framework compound, when the metal oxide powder is the nano zinc oxide particles, the precursor solution is a 2-methylimidazole / methanol solution, and the metal-organic framework compound is zeolite imidazole ester framework material-8.

4. A method for fabricating a metal-organic framework (MOF) adsorption catalytic reactor, comprising the following steps: mixing a resin and a metal powder in a solid content ratio using a stirring process to form a printing paste; adjusting a pixel size, a light source wavelength, and a light output power in a photocuring process, placing the printing paste in a paste tank of a photocuring printing apparatus, and performing the photocuring process by scanning the paste tank through a light source of the photocuring printing apparatus, and curing layer by layer to form a preform; placing the preform in a precursor solution for an in-situ generation reaction, through which the metal powder in the preform reacts with the precursor solution on the surface of the preform to generate a metal-organic framework compound, and reacting to form a reactor preform; and subjecting the reactor preform to a drying process in an oven at a temperature of 80°C to 120°C to form a metal-organic framework adsorption catalytic reactor; wherein... The solid content ratio is between 1% and 80%, and the metal powder is selected from one or a combination of copper metal powder, zinc metal powder, cobalt metal powder, nickel metal powder, iron metal powder, chromium metal powder, aluminum metal powder, zirconium metal powder, titanium metal powder, magnesium metal powder and rare earth metal powder.

5. The manufacturing method as described in claim 4, wherein in the step of mixing a resin and a metal powder in a solid content ratio, the resin comprises aliphatic polyurethane acrylate resin, diphenyl(2,4,6-trimethylbenzoyl)phosphine oxide and trimethylolpropane triacrylate.

6. The manufacturing method as described in claim 4, wherein in the step of placing the preform in a precursor solution to carry out an in-situ generation reaction, through which the metal powder of the preform reacts with the precursor solution on the surface of the preform to generate a metal-organic framework compound, when the metal powder is copper metal powder, the precursor solution is a trimellitic acid / ethanol solution, and the metal-organic framework compound is copper trimellitate.

7. The use of a metal-organic framework adsorption catalytic reactor, wherein a pollutant is adsorbed and catalyzed by a metal-organic framework compound on the surface of the metal-organic framework adsorption catalytic reactor, and the pollutant is an organic pollutant, a metallic pollutant or a gaseous pollutant, wherein the metal-organic framework compound is generated on a preform by an in-situ generation reaction, the preform is prepared by a stirring process and a photocuring process, and a pixel size, a light source wavelength and a light output power are further adjusted before the photocuring process.

8. The use as described in claim 7, wherein the organometallic framework compound is zeolite imidazole ester framework material-8 or copper trimesoate.

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