Volume 19, Issue 21 2207378
Research Article

Bi-Functional Co/Al Modified 1T-MoS2/rGO Catalyst for Enhanced Uranium Extraction and Hydrogen Evolution Reaction in Seawater

Jiahuang Jian

Jiahuang Jian

MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, 150001 P. R. China

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Hongjun Kang

Corresponding Author

Hongjun Kang

MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, 150001 P. R. China

E-mail: [email protected]; [email protected]; [email protected]

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Dongmei Yu

Dongmei Yu

MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, 150001 P. R. China

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Xianshu Qiao

Xianshu Qiao

School of Materials Science and Engineering, Harbin Institute of Technology, Harbin, 150001 P. R. China

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Yang Liu

Yang Liu

MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, 150001 P. R. China

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Yang Li

Yang Li

MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, 150001 P. R. China

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Wei Qin

Corresponding Author

Wei Qin

School of Materials Science and Engineering, Harbin Institute of Technology, Harbin, 150001 P. R. China

E-mail: [email protected]; [email protected]; [email protected]

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Xiaohong Wu

Corresponding Author

Xiaohong Wu

MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, 150001 P. R. China

E-mail: [email protected]; [email protected]; [email protected]

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First published: 04 March 2023
Citations: 4

Abstract

Uranium is a key element in the preparation of nuclear fuel. An electrochemical uranium extraction technique is proposed to achieve high efficiency uranium extraction performance through HER catalyst. However, it is still a challenge to design and develop a high-performance hydrogen evolution reaction (HER) catalyst for rapid extraction and recovery of uranium from seawater. Herein, a bi-functional Co, Al modified 1T-MoS2/reduced graphene oxide (CA-1T-MoS2/rGO) catalyst, showing a good HER performance with a HER overpotential of 466 mV at 10 mA cm−2 in simulated seawater, is first developed. Benefiting from the high HER performance of CA-1T-MoS2/rGO, efficient uranium extraction is achieved with a uranium extraction capacity of 1990 mg g−1 in simulated seawater without post-treatment, exhibiting a good reusability. The results of experiments and density functional theory (DFT) show that a high uranium extraction and recovery capability is attributed to the synergy effect of the improved HER performance and the strong adsorption capacity between U and OH*. This work provides a new strategy for the design and preparation of bi-functional catalysts with high HER performance and uranium extraction and recovery capabilities in seawater.

Conflict of Interest

The authors declare no conflict of interest.

Data Availability Statement

Research data are not shared.

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