Hybridization of metal-organic framework and monodisperse spherical silica for chromatographic separation of xylene isomers

Bixuan Gao; Minhui Huang; Zhiguo Zhang; Qiwei Yang; Baogen Su; Yiwen Yang; Qilong Ren; Zongbi Bao

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Hybridization of metal-organic framework and monodisperse spherical silica for chromatographic separation of xylene isomers

Separation Science and Engineering | Updated：2026-01-06

- Hybridization of metal-organic framework and monodisperse spherical silica for chromatographic separation of xylene isomers
- Hybridization of metal-organic framework and monodisperse spherical silica for chromatographic separation of xylene isomers
- 中国化学工程学报（英文版） 2019年27卷第4期页码：818-826
- Affiliations：
  
  Key Laboratory of Biomass Chemical Engineering of the Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University,Hangzhou,China,310027
- Author bio：
- Funds：
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  中图分类号：
- 纸质出版：2019
- Accepted：
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Bixuan Gao, Minhui Huang, Zhiguo Zhang, 等. Hybridization of metal-organic framework and monodisperse spherical silica for chromatographic separation of xylene isomers[J]. 中国化学工程学报（英文版）, 2019,27(4):818-826.

Bixuan Gao, Minhui Huang, Zhiguo Zhang, Qiwei Yang, Baogen Su, Yiwen Yang, Qilong Ren, Zongbi Bao. Hybridization of metal-organic framework and monodisperse spherical silica for chromatographic separation of xylene isomers[J]. Chinese Journal of Chemical Engineering, 2019, 27(4): 818-826.
Bixuan Gao, Minhui Huang, Zhiguo Zhang, 等. Hybridization of metal-organic framework and monodisperse spherical silica for chromatographic separation of xylene isomers[J]. 中国化学工程学报（英文版）, 2019,27(4):818-826. DOI：

Bixuan Gao, Minhui Huang, Zhiguo Zhang, Qiwei Yang, Baogen Su, Yiwen Yang, Qilong Ren, Zongbi Bao. Hybridization of metal-organic framework and monodisperse spherical silica for chromatographic separation of xylene isomers[J]. Chinese Journal of Chemical Engineering, 2019, 27(4): 818-826. DOI：

摘要

Abstract

Metal-organic frameworks (MOFs) packed in the column have been a promising candidate as the stationary phase for high performance liquid chromatography (HPLC). However

the direct packing of irregular MOF powder could raise some problems like high back pressure and low column efficiency in the HPLC separation. In this work

UiO-66 capable of separating xylenes was supported effectively on the surface of the monodisperse spherical silica microspheres by one-pot method. The hybridization of UiO-66 and silica microspheres (termed UiO-66@SiO

shell-core composite) was prepared by stirring the suspension of the precursors of UiO-66 and—COOH terminated silica in the

-dimethylformamide with heating. The shell-core composite material UiO66@SiO

was characterized by SEM

TEM

PXRD and FTIR. Then

it was used as a packing material for the chromatographic separation of xylene isomers. Xylene isomers including

-xylene

-xylene and

-xylene were efficiently separated on the column with high resolution and good reproducibility. Moreover

the UiO-66@SiO

shell-core composites packed column still remained reve

rse shape selectivity as UiO-66 possessed

and the retention of xylenes was probably ascribed to the hydrophobic effect between analytes and the aromatic rings of the UiO-66 shell. The UiO-66@SiO

shell-core composites obtained in this study have some potential for the separation of structural isomers in HPLC.

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