Issue 47, 2019

One-pot synthesis of mercapto functionalized Zr-MOFs for the enhanced removal of Hg2+ ions from water

Abstract

Mercapto functionalized Zr-MOFs have been developed via a one-pot synthesis for the selective adsorption of Hg2+ ions. Mercaptoacetic acid (MAA) or alpha lipoic acid (ALA) was used as the modulators and functionalized molecules to synthesize mercapto functionalized Zr-MOFs (Zr-MOFs-SH(O)). In comparison with the mercapto functionalized Zr-MOFs via the traditional postsynthetic modification (Zr-MOFs-SH(P)), Zr-MOFs-SH(O) had a much higher content of –SH groups, thus leading to a much higher adsorption capacity for Hg2+ ions. In particular, PCN-224-MAA(O) had an adsorption capacity for Hg2+ ions up to 843.6 mg g−1, which is much higher than that of PCN-224-MAA(P) (138.5 mg g−1). Additionally, PCN-224-MAA(O) can be used to reduce Hg2+ ion concentrations (5–20 μg L−1) in water to the limit acceptable (1 μg L−1) for drinking water. Moreover, PCN-224-MAA(O) also exhibited good selectivity, recyclability, and chemical stability.

Graphical abstract: One-pot synthesis of mercapto functionalized Zr-MOFs for the enhanced removal of Hg2+ ions from water

Supplementary files

Article information

Article type
Communication
Submitted
06 May 2019
Accepted
16 May 2019
First published
16 May 2019

Chem. Commun., 2019,55, 6775-6778

One-pot synthesis of mercapto functionalized Zr-MOFs for the enhanced removal of Hg2+ ions from water

D. Lin, X. Liu, R. Huang, W. Qi, R. Su and Z. He, Chem. Commun., 2019, 55, 6775 DOI: 10.1039/C9CC03481A

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