Influence of surface-treated SiO2 on the transport behavior of O2 and N2 through polydimethylsiloxane nanocomposite membrane

Emmanuel O. Ogbole; Jianzhong Lou; Shamsuddin Ilias; Vishwanath Desmane

doi:10.1016/j.seppur.2016.11.065

Influence of surface-treated SiO₂ on the transport behavior of O₂ and N₂ through polydimethylsiloxane nanocomposite membrane

Emmanuel O. Ogbole, Jianzhong Lou, Shamsuddin Ilias, Vishwanath Desmane

Research output: Contribution to journal › Article › peer-review

28 Scopus citations

Abstract

Mixed matrix membranes were prepared with polydimethylsiloxane (PDMS) and different weight percent surface-treated fumed silica (SiO₂) to investigate the influence of SiO₂ on transport behavior of O₂ and N₂ gases in the nanocomposite membranes. Fourier transform infrared spectroscopy (FTIR) showed that OH functional group on the surface of SiO₂ was consumed upon incorporation of the silica into the polymer matrix. Thermogravimetric analysis (TGA) results revealed that SiO₂-PDMS has improved thermal property over neat PDMS, supporting the argument that there is good interaction between the polymer and the fumed silica. Scanning electron microscopy (SEM) images of SiO₂-PDMS membranes showed uniform dispersion of SiO₂ nanoparticles in PDMS matrix. SiO₂ nanoparticles disrupted and altered the PDMS polymer chains packing arrangement resulting in different membrane transport behavior of both O₂ and N₂ gases in SiO₂-PDMS compared to the neat PDMS membrane. While the O₂ flux through SiO₂-PDMS membranes was observed to increase with time, N₂ flux decreased with time before attaining steady state. The 10 wt%SiO₂-PDMS membrane exhibited improved performance compared to neat PDMS membranes with O₂/N₂ selectivity and O₂ permeability increased from 2.43 to 3.46 and 590 Barrer to 640 Barrer, respectively, at 30 psig. This improvement is attributed to the influence of the well dispersed SiO₂ nanoparticles in the PDMS matrix.

Original language	English
Pages (from-to)	358-364
Number of pages	7
Journal	Separation and Purification Technology
Volume	175
DOIs	https://doi.org/10.1016/j.seppur.2016.11.065
State	Published - Mar 24 2017
Externally published	Yes

Keywords

Fumed silica
Neat PDMS membrane
Oxygen separation
Permeability

Access to Document

10.1016/j.seppur.2016.11.065

Cite this

@article{af76e92ef58246c483ed0361e55f4645,

title = "Influence of surface-treated SiO2 on the transport behavior of O2 and N2 through polydimethylsiloxane nanocomposite membrane",

abstract = "Mixed matrix membranes were prepared with polydimethylsiloxane (PDMS) and different weight percent surface-treated fumed silica (SiO2) to investigate the influence of SiO2 on transport behavior of O2 and N2 gases in the nanocomposite membranes. Fourier transform infrared spectroscopy (FTIR) showed that OH functional group on the surface of SiO2 was consumed upon incorporation of the silica into the polymer matrix. Thermogravimetric analysis (TGA) results revealed that SiO2-PDMS has improved thermal property over neat PDMS, supporting the argument that there is good interaction between the polymer and the fumed silica. Scanning electron microscopy (SEM) images of SiO2-PDMS membranes showed uniform dispersion of SiO2 nanoparticles in PDMS matrix. SiO2 nanoparticles disrupted and altered the PDMS polymer chains packing arrangement resulting in different membrane transport behavior of both O2 and N2 gases in SiO2-PDMS compared to the neat PDMS membrane. While the O2 flux through SiO2-PDMS membranes was observed to increase with time, N2 flux decreased with time before attaining steady state. The 10 wt\%SiO2-PDMS membrane exhibited improved performance compared to neat PDMS membranes with O2/N2 selectivity and O2 permeability increased from 2.43 to 3.46 and 590 Barrer to 640 Barrer, respectively, at 30 psig. This improvement is attributed to the influence of the well dispersed SiO2 nanoparticles in the PDMS matrix.",

keywords = "Fumed silica, Neat PDMS membrane, Oxygen separation, Permeability",

author = "Ogbole, \{Emmanuel O.\} and Jianzhong Lou and Shamsuddin Ilias and Vishwanath Desmane",

note = "Publisher Copyright: {\textcopyright} 2016 Elsevier B.V.",

year = "2017",

month = mar,

day = "24",

doi = "10.1016/j.seppur.2016.11.065",

language = "English",

volume = "175",

pages = "358--364",

journal = "Separation and Purification Technology",

issn = "1383-5866",

}

TY - JOUR

T1 - Influence of surface-treated SiO2 on the transport behavior of O2 and N2 through polydimethylsiloxane nanocomposite membrane

AU - Ogbole, Emmanuel O.

AU - Lou, Jianzhong

AU - Ilias, Shamsuddin

AU - Desmane, Vishwanath

PY - 2017/3/24

Y1 - 2017/3/24

N2 - Mixed matrix membranes were prepared with polydimethylsiloxane (PDMS) and different weight percent surface-treated fumed silica (SiO2) to investigate the influence of SiO2 on transport behavior of O2 and N2 gases in the nanocomposite membranes. Fourier transform infrared spectroscopy (FTIR) showed that OH functional group on the surface of SiO2 was consumed upon incorporation of the silica into the polymer matrix. Thermogravimetric analysis (TGA) results revealed that SiO2-PDMS has improved thermal property over neat PDMS, supporting the argument that there is good interaction between the polymer and the fumed silica. Scanning electron microscopy (SEM) images of SiO2-PDMS membranes showed uniform dispersion of SiO2 nanoparticles in PDMS matrix. SiO2 nanoparticles disrupted and altered the PDMS polymer chains packing arrangement resulting in different membrane transport behavior of both O2 and N2 gases in SiO2-PDMS compared to the neat PDMS membrane. While the O2 flux through SiO2-PDMS membranes was observed to increase with time, N2 flux decreased with time before attaining steady state. The 10 wt%SiO2-PDMS membrane exhibited improved performance compared to neat PDMS membranes with O2/N2 selectivity and O2 permeability increased from 2.43 to 3.46 and 590 Barrer to 640 Barrer, respectively, at 30 psig. This improvement is attributed to the influence of the well dispersed SiO2 nanoparticles in the PDMS matrix.

AB - Mixed matrix membranes were prepared with polydimethylsiloxane (PDMS) and different weight percent surface-treated fumed silica (SiO2) to investigate the influence of SiO2 on transport behavior of O2 and N2 gases in the nanocomposite membranes. Fourier transform infrared spectroscopy (FTIR) showed that OH functional group on the surface of SiO2 was consumed upon incorporation of the silica into the polymer matrix. Thermogravimetric analysis (TGA) results revealed that SiO2-PDMS has improved thermal property over neat PDMS, supporting the argument that there is good interaction between the polymer and the fumed silica. Scanning electron microscopy (SEM) images of SiO2-PDMS membranes showed uniform dispersion of SiO2 nanoparticles in PDMS matrix. SiO2 nanoparticles disrupted and altered the PDMS polymer chains packing arrangement resulting in different membrane transport behavior of both O2 and N2 gases in SiO2-PDMS compared to the neat PDMS membrane. While the O2 flux through SiO2-PDMS membranes was observed to increase with time, N2 flux decreased with time before attaining steady state. The 10 wt%SiO2-PDMS membrane exhibited improved performance compared to neat PDMS membranes with O2/N2 selectivity and O2 permeability increased from 2.43 to 3.46 and 590 Barrer to 640 Barrer, respectively, at 30 psig. This improvement is attributed to the influence of the well dispersed SiO2 nanoparticles in the PDMS matrix.

KW - Fumed silica

KW - Neat PDMS membrane

KW - Oxygen separation

KW - Permeability

UR - https://www.scopus.com/pages/publications/85002644979

U2 - 10.1016/j.seppur.2016.11.065

DO - 10.1016/j.seppur.2016.11.065

M3 - Article

SN - 1383-5866

VL - 175

SP - 358

EP - 364

JO - Separation and Purification Technology

JF - Separation and Purification Technology

ER -

Influence of surface-treated SiO₂ on the transport behavior of O₂ and N₂ through polydimethylsiloxane nanocomposite membrane

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this