University of Limerick
Browse
Zaworotko_2019_Benchmark.pdf (1.01 MB)

Benchmark selectivity p-xylene separation by a non-porous molecular solid through liquid or vapor extraction†

Download (1.01 MB)
journal contribution
posted on 2019-11-13, 12:26 authored by Na Sun, Shi-Qiang Wang, Ruqiang Zou, Wen-Gang Cui, Anqi Zhang, Tianzhen Zhang, Qi Li, Zhan-Zhong Zhuang, Ying-Hui Zhang, Jialiang Xu, Michael J. Zaworotko, Xian-He Bu
Solid–liquid separation of similarly sized organic molecules utilizing sorbents offers the potential for new energy-efficient approaches to a number of important industrial separations such as xylenes (C8) separations. Research on selective C8 sorption has tended to focus upon rigid porous materials such as zeolites and MOFs but has revealed generally weak selectivity that is inconsistent across the range of C8 molecules. Nevertheless, there are a few recent examples of non-porous molecular materials that exhibit relatively high selectivity for p-xylene (pX) from pX/oX, approaching that of the current benchmark pX sorbent, the zeolite H/ZSM-5. Herein, we report that a L-shaped Ag(I) complex, AgLClO4 (M), which crystallizes as a non-porous molecular solid material, offering exceptional performance for pX selectivity across the range of C8 isomers with liquid extraction selectivity values of 24.0, 10.4 and 6.2 vs. oX, eB and mX, respectively. The pX selectivities over oX and eB are among the highest yet reported. Moreover, M also exhibits strong vapor extraction selectivity and can be regenerated by exposure to vacuum drying

History

Publication

Chemical Science;10, 8850

Publisher

The Royal Society of Chemistry

Note

peer-reviewed

Other Funding information

National Natural Science Foundation of China, SFI

Language

English

Usage metrics

    University of Limerick

    Categories

    No categories selected

    Exports

    RefWorks
    BibTeX
    Ref. manager
    Endnote
    DataCite
    NLM
    DC