Protocol for extraction, characterization, and computational analysis of uranium from seawater

Area of Science:

• Materials Science
• Environmental Chemistry
• Nuclear Chemistry

Background:

• Seawater contains significant amounts of uranium, a valuable resource.
• Efficient and sustainable methods for uranium extraction from seawater are crucial for energy security.
• Novel adsorbent materials are needed to improve the selectivity and capacity for uranium capture.

Purpose of the Study:

• To present a detailed protocol for uranium extraction from seawater (UES).
• To characterize a novel thin film of Hydrogen-bonded Organic Framework (CSMCRIHOF-1) for adsorptive separation of uranium.
• To analyze the structure and binding sites of the adsorbent-uranium complex computationally.

Main Methods:

• Formulation of batch adsorption experiments using TFCH (CSMCRIHOF-1).
• Uranium recovery using eluent mixtures.
• Regeneration studies of TFCH for recyclability.
• Spectroscopic characterizations (e.g., FTIR, XRD) of TFCH and uranium-adsorbed TFCH.
• Computational analysis of structures and binding sites.

Main Results:

• Demonstration of a viable protocol for uranium extraction from seawater.
• Successful adsorption and recovery of uranium using TFCH.
• Evidence of TFCH recyclability after uranium recovery.
• Detailed structural and binding site information obtained through characterization and computational analysis.

Conclusions:

• The developed protocol offers an efficient method for uranium extraction from seawater.
• TFCH (CSMCRIHOF-1) shows promise as a recyclable adsorbent for uranium.
• Computational analysis provides insights into the mechanism of uranium adsorption.