MOF@SiO2 core-shell composites as stationary phase in high performance liquid chromatography
Research output: Contribution to journal › Research article › Contributed › peer-review
Contributors
Abstract
Mesoporous silica spheres were functionalized with microporous metal-organic frameworks (MOFs), namely MIL-101(Fe)_NH2 (Fe3(O)(BDC_NH2)3(OH)(H2O)2, BDC = benzene-1,4–dicarboxylate) and UiO-67 (Zr6O4(OH)4(BPDC)6, BPDC = 4,4′-biphenyldicarboxylate) to produce core-shell particles for application as stationary phase in high performance liquid chromatography (HPLC) columns using a layer-by-layer method. The composites were studied for application as stationary phase in normal phase HPLC for separation of C8-isomers, dichlorobenzene isomers, styrene and ethylbenzene. Both silica/MOF composites show the highest affinity towards the ortho substituted analytes, indicating that the selectivity is dominated by the polarity of the analytes. Moreover, the UiO-67@SiO2 composite shows high separation efficiency in the separation of dimethyl phthalate and diethyl phthalate, since the number of theoretical plates per meter is very high (37570 m−1).
Details
Original language | English |
---|---|
Pages (from-to) | 268-274 |
Number of pages | 7 |
Journal | Microporous and mesoporous materials |
Volume | 263 |
Publication status | Published - Jun 2018 |
Peer-reviewed | Yes |
Keywords
ASJC Scopus subject areas
Keywords
- Core-shell particles, HPLC, Metal-organic framework, Polarity, Stationary phase