Anti-interference silver-vanadium metal-organic framework derivative material as well as preparation method and application thereof

By designing anti-interference silver vanadium bimetal-organic frame derivative materials, using their unique structural characteristics, it can effectively absorb creatinine taken away after hemodialysis, solve the problem of environmental pollution and maintain efficient performance in a multi-interference environment.

CN119751902AActive Publication Date: 2025-04-04NANJING INST OF ENVIRONMENTAL SCI MINIST OF ECOLOGY & ENVIRONMENT OF THE PEOPLES REPUBLIC OF CHINA
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Patent Information

Application Number
CN202411848986.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-16
Publication Date
2025-04-04
Estimated Expiration
2044-12-16

AI Technical Summary

Technical Problem

The prior art fails to effectively treat contaminants such as creatinine taken away after hemodialysis, resulting in untreated discharge to the water environment, causing environmental pollution.

Method used

An anti-interference silver vanadium bimetal-organic frame derivative material was designed to achieve efficient adsorption of creatinine through the surface charge of its material, the conjugated structure of ligand, the electron transfer of the metal center, and the two-dimensional twisted wave layered structure with wrinkles on the surface.

Benefits of technology

This material exhibits high efficiency, short time and strong anti-interference performance when adsorbing creatinine. It can reach 140 mg/g in 180 minutes, and can maintain a high adsorption efficiency in an environment with multiple interferers.

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Abstract

The invention relates to the technical field of treatment of pollutants in wastewater, in particular to an anti-interference silver-vanadium metal-organic framework derivative material as well as a preparation method and application thereof. The preparation method comprises the steps that firstly, an AgV-MOF material with a two-dimensional twisted wave layered structure is prepared, then an Ag / V-MOF derivative material is prepared through alkaline etching, the Ag / V-MOF derivative material is provided with the wrinkled two-dimensional twisted wave layered structure, a large number of-OH groups are attached to the surface, and the Ag / V-MOF derivative material is prepared. Silver ions and vanadium ions can form an electron transfer path through bridging of organic ligands, so that electron transmission and transfer in the material are facilitated, and the adsorption performance of active sites of the material is further improved; therefore, the Ag / V-MOF derivative material can present the characteristics of high efficiency, short time and strong anti-interference performance when adsorbing creatinine under the combined action of the charge on the surface of the material, the conjugated structure of the ligand, electron transfer of the metal center and the two-dimensional twisted wave layered structure with the folds.
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