Issue 6, 2021

Sulfonated perylene-based conjugated microporous polymer as a high-performance adsorbent for photo-enhanced uranium extraction from seawater

Abstract

Uranium extraction from seawater employing chemical adsorbents is considered to be a promising strategy to conquer the scarcity of uranium resources. Regrettably, shortcomings of poor adsorption performance and saturated adsorption hinder the development of adsorption strategies to extract uranium from natural seawater where the environment is complicated. Herein, a sulfonated perylene-based conjugated microporous polymer adsorbent (PyB-SO3H) is prepared. The excellent photocatalytic activity of PyB-SO3H ensures the effective generation of active oxygen species (˙O2 and 1O2), which have high antibacterial activity. Moreover, it also promotes photoelectrons to reduce the adsorbed hexavalent uranium to insoluble tetravalent uranium, and facilitate electrostatic attraction of the photogenerated holes to the negative [UO2(CO3)3]4−, thus greatly enhancing the uranium extraction capacity. Owing to this photo-enhanced synergistic effect, the uranium extraction capacity of PyB-SO3H in 500 ppm uranium(VI)-spiked seawater reaches 1.989 g g−1, with a nearly 90% extraction efficiency. This research provides a unique perspective for the development of high-efficiency adsorbents for uranium extraction from seawater.

Graphical abstract: Sulfonated perylene-based conjugated microporous polymer as a high-performance adsorbent for photo-enhanced uranium extraction from seawater

Supplementary files

Article information

Article type
Paper
Submitted
02 pro 2020
Accepted
06 sij 2021
First published
09 sij 2021

Polym. Chem., 2021,12, 867-875

Sulfonated perylene-based conjugated microporous polymer as a high-performance adsorbent for photo-enhanced uranium extraction from seawater

F. Yu, F. Song, R. Wang, M. Xu and F. Luo, Polym. Chem., 2021, 12, 867 DOI: 10.1039/D0PY01656J

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