Composite MOFs catalyst for waste gas treatment and preparation method thereof

By preparing composite MOF catalysts and combining them with copper-cerium composite materials, the problem of poor VOCs removal efficiency in waste gas treatment in existing technologies has been solved, achieving a highly efficient waste gas treatment effect.

CN121797401APending Publication Date: 2026-04-07GUANGZHOU AIR ENVIRONMENTAL ENG CO LTD
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Patent Information

Application Number
CN202511893467.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-12-16
Publication Date
2026-04-07

AI Technical Summary

Technical Problem

Existing technologies are insufficient for efficiently removing volatile organic compounds (VOCs) from waste gases, especially in industrial coating and chemical production, where the application of MOF catalysts is not ideal.

Method used

A composite MOF catalyst preparation method is adopted, which involves ball milling, drying, calcination and other steps, combined with copper-cerium composite catalytic materials to form a MOF catalyst with a highly ordered pore structure. The synergistic effect of copper and cerium is utilized to achieve efficient adsorption and catalytic decomposition of VOCs.

Benefits of technology

It significantly improves the adsorption and catalytic decomposition efficiency of VOCs in waste gas, achieving high efficiency and environmental protection in waste gas treatment and reducing environmental pollution.

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Abstract

The invention relates to the technical field of waste gas treatment, in particular to a composite MOFs catalyst for waste gas treatment and a preparation method of the composite MOFs catalyst. The molecular sieve material is obtained by adding anhydrous sodium metasilicate, sodium hydroxide and sodium aluminate. And modifying the molecular sieve material by using gamma-aminopropyltriethoxysilane to obtain the modified molecular sieve material. And mixing copper nitrate, the modified molecular sieve material and 1, 3, 5-benzene tricarboxylic acid to obtain the MOFs catalyst. The copper-cerium composite catalytic material is obtained by adding copper oxide and cerium acetate as raw materials, ball-milling, drying and calcining. And mixing the MOFs catalyst with the copper-cerium composite catalytic material, and carrying out ball milling, sieving and washing to obtain the composite MOFs catalyst. When the composite MOFs catalyst is used for treating waste gas, VOCs in the waste gas can be efficiently captured, and the VOCs can be converted into harmless substances through catalytic action, so that effective adsorption treatment on the waste gas is realized.
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