Thin film nanocomposite membranes of PIM-1 and graphene oxide/ZIF-8 nanohybrids for organophilic pervaporation

Boya Qiu; Monica Alberto; Sajjad Mohsenpour; Andrew B. Foster; Shengzhe Ding; Zunmin Guo; Shaojun Xu; Stuart M. Holmes; Peter M. Budd; Xiaolei Fan; Patricia Gorgojo

doi:10.1016/j.seppur.2022.121693

Thin film nanocomposite membranes of PIM-1 and graphene oxide/ZIF-8 nanohybrids for organophilic pervaporation

Boya Qiu, Monica Alberto, Sajjad Mohsenpour, Andrew B. Foster, Shengzhe Ding, Zunmin Guo, Shaojun Xu, Stuart M. Holmes, Peter M. Budd, Xiaolei Fan, Patricia Gorgojo

Research output: Journal Publication › Article › peer-review

6 Citations (Scopus)

Abstract

In this work, thin film nanocomposite (TFN) membranes of super-glassy polymer PIM-1 containing zeolitic imidazolate framework-8 (ZIF-8)/graphene oxide (GO) composites (ZG) have been prepared by dip-coating onto water pre-impregnated polyvinylidene fluoride (PVDF) substrates. Higher flux and improved separation factors as compared to bare PIM-1 thin film composite (TFC) membranes have been achieved in organophilic pervaporation; for an aqueous feed solution with 5 wt% of butanol at 65 °C, a total permeate flux of 7.9 ± 0.69 kg m⁻²h⁻¹ and a separation factor (β_BtOH/H2O) of 29.9 ± 1.99 have been obtained with a TFC membrane containing 0.5 wt% of ZG filler. The pervaporation separation index (PSI) of this membrane (228 kg m⁻²h⁻¹) is amongst the highest values reported in the literature. This excellent performance is attributed to the formation of a defect-free PIM-1 active layer (<1 μm) and the hydrophobic nature of the ZG fillers.

Original language	English
Article number	121693
Journal	Separation and Purification Technology
Volume	299
DOIs	https://doi.org/10.1016/j.seppur.2022.121693
Publication status	Published - 15 Oct 2022
Externally published	Yes

Keywords

Graphene oxide (GO)
PIM-1
Thin-film nanocomposite (TFN) membrane
ZIF-8/GO
pervaporation (PV)

ASJC Scopus subject areas

Analytical Chemistry
Filtration and Separation

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10.1016/j.seppur.2022.121693

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title = "Thin film nanocomposite membranes of PIM-1 and graphene oxide/ZIF-8 nanohybrids for organophilic pervaporation",

abstract = "In this work, thin film nanocomposite (TFN) membranes of super-glassy polymer PIM-1 containing zeolitic imidazolate framework-8 (ZIF-8)/graphene oxide (GO) composites (ZG) have been prepared by dip-coating onto water pre-impregnated polyvinylidene fluoride (PVDF) substrates. Higher flux and improved separation factors as compared to bare PIM-1 thin film composite (TFC) membranes have been achieved in organophilic pervaporation; for an aqueous feed solution with 5 wt% of butanol at 65 °C, a total permeate flux of 7.9 ± 0.69 kg m−2h−1 and a separation factor (βBtOH/H2O) of 29.9 ± 1.99 have been obtained with a TFC membrane containing 0.5 wt% of ZG filler. The pervaporation separation index (PSI) of this membrane (228 kg m−2h−1) is amongst the highest values reported in the literature. This excellent performance is attributed to the formation of a defect-free PIM-1 active layer (<1 μm) and the hydrophobic nature of the ZG fillers.",

keywords = "Graphene oxide (GO), PIM-1, Thin-film nanocomposite (TFN) membrane, ZIF-8/GO, pervaporation (PV)",

author = "Boya Qiu and Monica Alberto and Sajjad Mohsenpour and Foster, {Andrew B.} and Shengzhe Ding and Zunmin Guo and Shaojun Xu and Holmes, {Stuart M.} and Budd, {Peter M.} and Xiaolei Fan and Patricia Gorgojo",

note = "Publisher Copyright: {\textcopyright} 2022 The Authors",

year = "2022",

month = oct,

day = "15",

doi = "10.1016/j.seppur.2022.121693",

language = "English",

volume = "299",

journal = "Separation and Purification Technology",

issn = "1383-5866",

publisher = "Elsevier",

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TY - JOUR

T1 - Thin film nanocomposite membranes of PIM-1 and graphene oxide/ZIF-8 nanohybrids for organophilic pervaporation

AU - Qiu, Boya

AU - Alberto, Monica

AU - Mohsenpour, Sajjad

AU - Foster, Andrew B.

AU - Ding, Shengzhe

AU - Guo, Zunmin

AU - Xu, Shaojun

AU - Holmes, Stuart M.

AU - Budd, Peter M.

AU - Fan, Xiaolei

AU - Gorgojo, Patricia

PY - 2022/10/15

Y1 - 2022/10/15

N2 - In this work, thin film nanocomposite (TFN) membranes of super-glassy polymer PIM-1 containing zeolitic imidazolate framework-8 (ZIF-8)/graphene oxide (GO) composites (ZG) have been prepared by dip-coating onto water pre-impregnated polyvinylidene fluoride (PVDF) substrates. Higher flux and improved separation factors as compared to bare PIM-1 thin film composite (TFC) membranes have been achieved in organophilic pervaporation; for an aqueous feed solution with 5 wt% of butanol at 65 °C, a total permeate flux of 7.9 ± 0.69 kg m−2h−1 and a separation factor (βBtOH/H2O) of 29.9 ± 1.99 have been obtained with a TFC membrane containing 0.5 wt% of ZG filler. The pervaporation separation index (PSI) of this membrane (228 kg m−2h−1) is amongst the highest values reported in the literature. This excellent performance is attributed to the formation of a defect-free PIM-1 active layer (<1 μm) and the hydrophobic nature of the ZG fillers.

AB - In this work, thin film nanocomposite (TFN) membranes of super-glassy polymer PIM-1 containing zeolitic imidazolate framework-8 (ZIF-8)/graphene oxide (GO) composites (ZG) have been prepared by dip-coating onto water pre-impregnated polyvinylidene fluoride (PVDF) substrates. Higher flux and improved separation factors as compared to bare PIM-1 thin film composite (TFC) membranes have been achieved in organophilic pervaporation; for an aqueous feed solution with 5 wt% of butanol at 65 °C, a total permeate flux of 7.9 ± 0.69 kg m−2h−1 and a separation factor (βBtOH/H2O) of 29.9 ± 1.99 have been obtained with a TFC membrane containing 0.5 wt% of ZG filler. The pervaporation separation index (PSI) of this membrane (228 kg m−2h−1) is amongst the highest values reported in the literature. This excellent performance is attributed to the formation of a defect-free PIM-1 active layer (<1 μm) and the hydrophobic nature of the ZG fillers.

KW - Graphene oxide (GO)

KW - PIM-1

KW - Thin-film nanocomposite (TFN) membrane

KW - ZIF-8/GO

KW - pervaporation (PV)

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U2 - 10.1016/j.seppur.2022.121693

DO - 10.1016/j.seppur.2022.121693

M3 - Article

AN - SCOPUS:85134346845

SN - 1383-5866

VL - 299

JO - Separation and Purification Technology

JF - Separation and Purification Technology

M1 - 121693

ER -

Thin film nanocomposite membranes of PIM-1 and graphene oxide/ZIF-8 nanohybrids for organophilic pervaporation

Abstract

Keywords

ASJC Scopus subject areas

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