An electrochemical uranium extraction system and a method for preparing molybdenum oxide-based nanosheets for electrochemical uranium extraction.

By preparing U-MoOx nanosheets and combining them with an electrochemical system, the problem of low uranium extraction efficiency in traditional methods has been solved, achieving efficient and environmentally friendly uranium recovery, reducing production costs and improving uranium resource utilization.

CN117263249BActive Publication Date: 2026-04-03SOUTHWEST UNIV OF SCI & TECH SICHUAN TIANFU NEW AREA INNOVATION RES INST +1
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Patent Information

Application Number
CN202311262924.4
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-09-27
Publication Date
2026-04-03
Estimated Expiration
2043-09-27

AI Technical Summary

Technical Problem

Existing technologies for treating fluoride- and uranium-containing wastewater are cumbersome, inefficient, and difficult to extract and recover uranium efficiently, and they also pose potential environmental hazards. There is a need to develop a low-cost, green, and efficient electrochemical uranium extraction method.

Method used

Using molybdenum oxide-based nanosheets as electrochemical uranium extraction materials, U-MoOx nanosheets were prepared and combined with an electrochemical workstation and solar panel system to achieve efficient electrochemical reduction and deposition of uranium. The efficiency of uranium extraction was improved by utilizing the interfacial bonding of isolated uranyl groups and the hydrogen spillover effect.

Benefits of technology

The uranium extraction efficiency reaches 95.26% in a high-fluorine environment, with an adsorption capacity of 2382 mg/g. It exhibits good cycle stability and strong resistance to ion interference, thereby reducing production costs and resource consumption.

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Abstract

This invention discloses an electrochemical uranium extraction system and a method for preparing molybdenum oxide-based nanosheets for electrochemical uranium extraction, comprising: Step 1, synthesizing MoO x Nanosheets; Step 2: Using a uranium source and the MoO prepared in Step 1 x U-MoO was synthesized using nanosheets as raw materials. x Nanosheets. This invention successfully introduces isolated uranyl into MoO. x Nanosheets were used to extract uranium from uranium-containing wastewater, achieving highly efficient electrochemical reduction and deposition of uranium in fluorine-containing wastewater. During electrolysis, isolated uranyl-MoO₂... x This creates an interfacial hydrogen spillover effect, enabling the regeneration of uranium active sites and ensuring the continuous reduction and deposition of uranyl. Furthermore, when combined with an electrochemical uranium extraction system, it can also achieve uranium extraction in seawater or other uranium-containing wastewater.
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