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mesoporous cationic thorium-organic framework that rapidly traps anionic persistent organic pollutants.

Title: A mesoporous cationic thorium-organic framework that rapidly traps anionic persistent organic pollutants.
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Name(s): Li, Yuxiang, author
Yang, Zaixing, author
Wang, Yanlong, author
Bai, Zhuanling, author
Zheng, Tao, author
Dai, Xing, author
Liu, Shengtang, author
Gui, Daxiang, author
Liu, Wei, author
Chen, Meng, author
Chen, Lanhua, author
Diwu, Juan, author
Zhu, Lingyan, author
Zhou, Ruhong, author
Chai, Zhifang, author
Albrecht-Schmitt, Thomas E, author
Wang, Shuao, author
Type of Resource: text
Genre: Journal Article
Text
Date Issued: 2017-11-07
Physical Form: computer
online resource
Extent: 1 online resource
Language(s): English
Abstract/Description: Many environmental pollutants inherently exist in their anionic forms and are therefore highly mobile in natural water systems. Cationic framework materials that can capture those pollutants are highly desirable but scarcely reported. Here we present a mesoporous cationic thorium-based MOF (SCU-8) containing channels with a large inner diameter of 2.2 nm and possessing a high surface area of 1360 m g. The anion-exchange properties of SCU-8 were explored with many anions including small oxo anions like ReO and CrO as well as anionic organic dyes like methyl blue and the persistent organic pollutant, perfluorooctane sulfonate (PFOS). Both fast uptake kinetics and great sorption selectivity toward PFOS are observed. The underlying sorption mechanism was probed using quantum mechanical and molecular dynamics simulations. These computational results reveal that PFOS anions are immobilized in SCU-8 by driving forces including electrostatic interactions, hydrogen bonds, hydrophobic interactions, and van der Waals interactions at different adsorption stages.
Identifier: FSU_pmch_29116079 (IID), 10.1038/s41467-017-01208-w (DOI), PMC5677036 (PMCID), 29116079 (RID), 29116079 (EID), 10.1038/s41467-017-01208-w (PII)
Publication Note: This NIH-funded author manuscript originally appeared in PubMed Central at https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5677036.
Persistent Link to This Record: http://purl.flvc.org/fsu/fd/FSU_pmch_29116079
Host Institution: FSU
Is Part Of: Nature communications.
2041-1723
Issue: iss. 1, vol. 8

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Li, Y., Yang, Z., Wang, Y., Bai, Z., Zheng, T., Dai, X., … Wang, S. (2017). A mesoporous cationic thorium-organic framework that rapidly traps anionic persistent organic pollutants. Nature Communications. Retrieved from http://purl.flvc.org/fsu/fd/FSU_pmch_29116079