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Macroporous metal–organic framework microparticles with improved liquid phase separation

Macroporous metal–organic framework microparticles with improved liquid phase separation
Macroporous metal–organic framework microparticles with improved liquid phase separation
Typically, metal–organic frameworks (MOFs) exhibit ordered micropores (<2 nm). The control of pore shape, surface functionality and high surface area, which comes with the variety of metal ions and enormously available organic ligands, has rendered a wide range of applications for MOF materials. Due to the limited mass transport of micropores, various approaches have been developed to produce mesoporous MOFs. However, the preparation of macroporous MOFs (with macropores in addition to the micropores) has been scarce, despite this type of material being able to facilitate considerably applications such as separation and catalysis. Here, we report the solvothermal modification of HKUST-1 microparticles with hydroquinone. An etching mechanism is suggested for the formation of macroporous HKUST-1 particles, which presents a high surface area and high macropore volume with the HKUST-1 characteristic pattern. Single X-ray diffraction data shows a cubic unit cell eight times the size of the HKUST-1 unit cell, as a result of slight distortions to the framework. The modified macroporous HKUST-1 particles are further packed into a column, showing fast and improved separation of ethylbenzene and styrene by high performance liquid chromatography.
9085-9090
Ahmed, Adham
5729aef8-2ee5-4b62-a6d2-ec26dd50683a
Hodgson, Nicola
5a5a45d6-dd14-4cf3-9750-2d4f792f3262
Barrow, Michael
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Clowes, Rob
11e42a35-d9b1-44be-84af-10a5bac63b00
Robertson, Craig M.
d08100a1-93ec-4503-86fd-1bdc9f0b1934
Steiner, Alexander
90c4fb4a-d977-448d-91c6-e38338d4e4d2
McKeown, Paul
a1fcde3f-788b-49cc-9afa-568f3a01462b
Bradshaw, Darren
7677b11e-1961-447e-b9ba-4847a74bd4dd
Myers, Peter
c585859c-001d-4ab4-b6bd-b9cc55bfdb50
Zhang, Haifei
8904e696-1920-4863-9368-0c444aff7354
Ahmed, Adham
5729aef8-2ee5-4b62-a6d2-ec26dd50683a
Hodgson, Nicola
5a5a45d6-dd14-4cf3-9750-2d4f792f3262
Barrow, Michael
7ff71c77-e43f-463b-8a49-7b5919922534
Clowes, Rob
11e42a35-d9b1-44be-84af-10a5bac63b00
Robertson, Craig M.
d08100a1-93ec-4503-86fd-1bdc9f0b1934
Steiner, Alexander
90c4fb4a-d977-448d-91c6-e38338d4e4d2
McKeown, Paul
a1fcde3f-788b-49cc-9afa-568f3a01462b
Bradshaw, Darren
7677b11e-1961-447e-b9ba-4847a74bd4dd
Myers, Peter
c585859c-001d-4ab4-b6bd-b9cc55bfdb50
Zhang, Haifei
8904e696-1920-4863-9368-0c444aff7354

Ahmed, Adham, Hodgson, Nicola, Barrow, Michael, Clowes, Rob, Robertson, Craig M., Steiner, Alexander, McKeown, Paul, Bradshaw, Darren, Myers, Peter and Zhang, Haifei (2014) Macroporous metal–organic framework microparticles with improved liquid phase separation. Journal of Materials Chemistry, 2 (24), 9085-9090. (doi:10.1039/C4TA00138A).

Record type: Article

Abstract

Typically, metal–organic frameworks (MOFs) exhibit ordered micropores (<2 nm). The control of pore shape, surface functionality and high surface area, which comes with the variety of metal ions and enormously available organic ligands, has rendered a wide range of applications for MOF materials. Due to the limited mass transport of micropores, various approaches have been developed to produce mesoporous MOFs. However, the preparation of macroporous MOFs (with macropores in addition to the micropores) has been scarce, despite this type of material being able to facilitate considerably applications such as separation and catalysis. Here, we report the solvothermal modification of HKUST-1 microparticles with hydroquinone. An etching mechanism is suggested for the formation of macroporous HKUST-1 particles, which presents a high surface area and high macropore volume with the HKUST-1 characteristic pattern. Single X-ray diffraction data shows a cubic unit cell eight times the size of the HKUST-1 unit cell, as a result of slight distortions to the framework. The modified macroporous HKUST-1 particles are further packed into a column, showing fast and improved separation of ethylbenzene and styrene by high performance liquid chromatography.

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More information

Accepted/In Press date: 2 March 2014
e-pub ahead of print date: 11 March 2014
Organisations: Organic Chemistry: SCF

Identifiers

Local EPrints ID: 395457
URI: http://eprints.soton.ac.uk/id/eprint/395457
PURE UUID: 618f0ccb-1437-49c1-8fd2-a8c4b5f1d72c
ORCID for Darren Bradshaw: ORCID iD orcid.org/0000-0001-5258-6224

Catalogue record

Date deposited: 31 May 2016 09:32
Last modified: 15 Mar 2024 03:40

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Contributors

Author: Adham Ahmed
Author: Nicola Hodgson
Author: Michael Barrow
Author: Rob Clowes
Author: Craig M. Robertson
Author: Alexander Steiner
Author: Paul McKeown
Author: Darren Bradshaw ORCID iD
Author: Peter Myers
Author: Haifei Zhang

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