Utilizing 3D DOSY NMR in the characterization of organic compounds in coal chemical wastewater

Hui Ma; Christian M. Pedersen; Qi Zhao; Shiyu Jia; Bin Yuan; Xianglin Hou; Yingxiong Wang

Magnetic Resonance Letters (May 2022)

Utilizing 3D DOSY NMR in the characterization of organic compounds in coal chemical wastewater

Hui Ma,
Christian M. Pedersen,
Qi Zhao,
Shiyu Jia,
Bin Yuan,
Xianglin Hou,
Yingxiong Wang

Affiliations

Hui Ma: Shanxi Engineering Research Center of Biorefinery, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan, 030001, China; Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
Christian M. Pedersen: Department of Chemistry, University of Copenhagen, Universitetsparken 5, DK-2100, Copenhagen, Denmark
Qi Zhao: Shanxi Engineering Research Center of Biorefinery, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan, 030001, China; Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
Shiyu Jia: Shanxi Engineering Research Center of Biorefinery, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan, 030001, China
Bin Yuan: State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Center for Magnetic Resonance, Wuhan Institute of Physics and Mathematics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan, 430071, China
Xianglin Hou: Shanxi Engineering Research Center of Biorefinery, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan, 030001, China; Corresponding author.
Yingxiong Wang: Shanxi Engineering Research Center of Biorefinery, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan, 030001, China; Corresponding author.

Journal volume & issue: Vol. 2, no. 2
pp. 69 – 79

Abstract

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Coal chemical wastewater (CCW) with the features of high toxicity and poor biodegradability is a big issue in environmental remediation, posing a great threat to aquatic ecosystems and to human beings. Such complex molecular mixtures are notoriously difficult to characterize without initial physical separation. Herein, we present the 3D diffusion ordered spectroscopy (DOSY) analysis for CCW using DOSY-COSY and DOSY-HSQC methods, the advantages of this strategy have been demonstrated in the analysis of mixtures of aliphatic oxygenates and aromatic compounds, before being implemented on a genuine CCW sample in this study. The results showed that 3D DOSY is a robust and reliable tool for providing superior resolution and virtual separation of complex pollutants, and can be used as a general approach for structural elucidation.

Published in Magnetic Resonance Letters

ISSN: 2097-0048 (Print); 2772-5162 (Online)
Publisher: KeAi Communications Co. Ltd.
Country of publisher: China
LCC subjects: Science: Chemistry: Physical and theoretical chemistry; Science: Chemistry: Analytical chemistry
Website: https://www.keaipublishing.com/en/journals/magnetic-resonance-letters/

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