Issue 5, 2024

Highly radiation-resistant Al-MOF selected based on the radiation stability rules of metal–organic frameworks with ultra-high thorium ion adsorption capacity

Abstract

For the new generation of thorium-based molten salt reactors to operate in the future, irreversible adsorption of radioactive thorium ions is required. Therefore, designing highly irradiation-resistant, high-adsorption capacity porous adsorbents for the adsorptive removal of radioactive thorium ions is a great challenge. Herein, based on the radiation stability rules of MOFs (Al3+ metal nodes and unmodified organic ligands), we used a simple solvothermal method to synthesize an aluminum-based MOF, Al-MOF. The strong β-ray resistance with Al-MOF was confirmed by XRD and FT-IR characterization as well as adsorption isotherm experiments under β-ray irradiation with a total dose of 1000 kGy. Additionally, Al-MOF exhibits ultra-high Th(IV) adsorption capacity (1324.64 mg g−1) and Th(IV) adsorption selectivity (KThd/KMd ≥ 6 × 103). This study provides guidance for the design of efficient MOF-based adsorbents for applications in spent fuel reprocessing and further expands the practical application of MOFs.

Graphical abstract: Highly radiation-resistant Al-MOF selected based on the radiation stability rules of metal–organic frameworks with ultra-high thorium ion adsorption capacity

Supplementary files

Article information

Article type
Paper
Submitted
28 janv. 2024
Accepted
18 mars 2024
First published
19 mars 2024

Environ. Sci.: Nano, 2024,11, 2103-2111

Highly radiation-resistant Al-MOF selected based on the radiation stability rules of metal–organic frameworks with ultra-high thorium ion adsorption capacity

X. Ding, Z. Zhang, X. Li, K. Ma, T. Jin, Z. Feng, T. Lan, J. Zhao and S. Xiao, Environ. Sci.: Nano, 2024, 11, 2103 DOI: 10.1039/D4EN00076E

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements