Ion exchange and binding in selenium remediation materials using DNP-enhanced solid-state NMR spectroscopy

Mais, Marco; Torroba, Javier; Barrow, Nathan S.; Paul, Subhradip; Titman, Jeremy J.

Abstract

Selenate-loaded selenium water remediation materials based on polymer fibres have been investigated by dynamic nuclear polarization (DNP) enhanced solid-state NMR. For carbon-13 a significant reduction in experiment time is obtained with DNP even when compared with conventional carbon-13 NMR spectra recorded using larger samples. For the selenium remediation materials studied here this reduction allows efficient acquisition of {1H}-77Se heteronuclear correlation spectra which give information about the nature of the binding of the remediated selenate ions with the grafted side chains which provide the required ion exchange functionality.

Citation

Mais, M., Torroba, J., Barrow, N. S., Paul, S., & Titman, J. J. (2019). Ion exchange and binding in selenium remediation materials using DNP-enhanced solid-state NMR spectroscopy. Solid State Nuclear Magnetic Resonance, 98, 19-23. https://doi.org/10.1016/j.ssnmr.2019.01.004

• Journal Article Type: Article
• Acceptance Date: Jan 17, 2019
• Online Publication Date: Jan 20, 2019
• Publication Date: 2019-04
• Deposit Date: Feb 5, 2019
• Publicly Available Date: Jul 21, 2020
• Journal: Solid State Nuclear Magnetic Resonance
• Print ISSN: 0926-2040
• Publisher: Elsevier
• Peer Reviewed: Peer Reviewed
• Volume: 98
• Pages: 19-23
• DOI: https://doi.org/10.1016/j.ssnmr.2019.01.004
• Keywords: Nuclear and High Energy Physics; Instrumentation; General Chemistry; Radiation
• Public URL: https://nottingham-repository.worktribe.com/output/1496236
• Publisher URL: https://www.sciencedirect.com/science/article/pii/S0926204018301115