6 research outputs found
Pickering Emulsion-Templated Nanocomposite Membranes for Excellent Demulsification and Oil–Water Separation
A worldwide steady increase in oily wastewater, due to
oil spillage
and various industrial discharges, requires immediate efforts toward
development of an effective strategy and materials to preserve the
natural water bodies. Designing a superwettable fibrous membrane of
robust structure and anti-fouling property for efficient separation
of oil-water mixtures and emulsions is therefore highly demanding.
The electrospun fibrous membrane, which possesses porosity and flexibility
and properties including superwettability and tunable functionality,
can be considered as apposite materials for this cause. In this approach,
we combined two strategies, viz., Pickering emulsion and near gel
resin (nGR) emulsion electrospinning together to produce a fibrous
nanocomposite membrane for efficient oil–water separation and
demulsification. nGR Pickering emulsions were stabilized using hydrophilic
SiO2 nanoparticles and successfully optimized for fabricating
the crosslinked core sheath-structured fibrous membrane. The prepared
membrane provided twofold functionality due to the core sheath structure
of the fibers. The crosslinked polystyrene core offered high oil adsorption
capacity, whereas SiO2-functionalized crosslinked polyvinyl
alcohol sheath provided a rough, superhydrophilic surface with underwater
oleophobic behavior to the membrane. The optimized SiO2-Pickering emulsion-templated nanocomposite membrane demonstrated
excellent underwater anti-oil adhesion behavior (UWOCA ∼148°)
with efficient oil–water separation capacity of more than 99%
and separation flux up to 3346 ± 91 L m–2 h–1. The membrane was evaluated against various oil–water
emulsions and found to have a superior separation efficiency. Moreover,
excellent anti-oil adhesion property provided the intact membrane,
where consistent separation performance was achieved up to 10 separation
cycles without any loss. The membrane was used for separation of hot
oil–water emulsions and showed no structural disintegration
or loss in separation performance when exposed to elevated temperatures.
The developed nanocomposite membranes could efficiently be used for
separation and demulsification, and their applications can be explored
in various other fields including selective sorption, catalysis, and
storage in future
Pickering Emulsion-Templated Nanocomposite Membranes for Excellent Demulsification and Oil–Water Separation
A worldwide steady increase in oily wastewater, due to
oil spillage
and various industrial discharges, requires immediate efforts toward
development of an effective strategy and materials to preserve the
natural water bodies. Designing a superwettable fibrous membrane of
robust structure and anti-fouling property for efficient separation
of oil-water mixtures and emulsions is therefore highly demanding.
The electrospun fibrous membrane, which possesses porosity and flexibility
and properties including superwettability and tunable functionality,
can be considered as apposite materials for this cause. In this approach,
we combined two strategies, viz., Pickering emulsion and near gel
resin (nGR) emulsion electrospinning together to produce a fibrous
nanocomposite membrane for efficient oil–water separation and
demulsification. nGR Pickering emulsions were stabilized using hydrophilic
SiO2 nanoparticles and successfully optimized for fabricating
the crosslinked core sheath-structured fibrous membrane. The prepared
membrane provided twofold functionality due to the core sheath structure
of the fibers. The crosslinked polystyrene core offered high oil adsorption
capacity, whereas SiO2-functionalized crosslinked polyvinyl
alcohol sheath provided a rough, superhydrophilic surface with underwater
oleophobic behavior to the membrane. The optimized SiO2-Pickering emulsion-templated nanocomposite membrane demonstrated
excellent underwater anti-oil adhesion behavior (UWOCA ∼148°)
with efficient oil–water separation capacity of more than 99%
and separation flux up to 3346 ± 91 L m–2 h–1. The membrane was evaluated against various oil–water
emulsions and found to have a superior separation efficiency. Moreover,
excellent anti-oil adhesion property provided the intact membrane,
where consistent separation performance was achieved up to 10 separation
cycles without any loss. The membrane was used for separation of hot
oil–water emulsions and showed no structural disintegration
or loss in separation performance when exposed to elevated temperatures.
The developed nanocomposite membranes could efficiently be used for
separation and demulsification, and their applications can be explored
in various other fields including selective sorption, catalysis, and
storage in future
Pickering Emulsion-Templated Nanocomposite Membranes for Excellent Demulsification and Oil–Water Separation
A worldwide steady increase in oily wastewater, due to
oil spillage
and various industrial discharges, requires immediate efforts toward
development of an effective strategy and materials to preserve the
natural water bodies. Designing a superwettable fibrous membrane of
robust structure and anti-fouling property for efficient separation
of oil-water mixtures and emulsions is therefore highly demanding.
The electrospun fibrous membrane, which possesses porosity and flexibility
and properties including superwettability and tunable functionality,
can be considered as apposite materials for this cause. In this approach,
we combined two strategies, viz., Pickering emulsion and near gel
resin (nGR) emulsion electrospinning together to produce a fibrous
nanocomposite membrane for efficient oil–water separation and
demulsification. nGR Pickering emulsions were stabilized using hydrophilic
SiO2 nanoparticles and successfully optimized for fabricating
the crosslinked core sheath-structured fibrous membrane. The prepared
membrane provided twofold functionality due to the core sheath structure
of the fibers. The crosslinked polystyrene core offered high oil adsorption
capacity, whereas SiO2-functionalized crosslinked polyvinyl
alcohol sheath provided a rough, superhydrophilic surface with underwater
oleophobic behavior to the membrane. The optimized SiO2-Pickering emulsion-templated nanocomposite membrane demonstrated
excellent underwater anti-oil adhesion behavior (UWOCA ∼148°)
with efficient oil–water separation capacity of more than 99%
and separation flux up to 3346 ± 91 L m–2 h–1. The membrane was evaluated against various oil–water
emulsions and found to have a superior separation efficiency. Moreover,
excellent anti-oil adhesion property provided the intact membrane,
where consistent separation performance was achieved up to 10 separation
cycles without any loss. The membrane was used for separation of hot
oil–water emulsions and showed no structural disintegration
or loss in separation performance when exposed to elevated temperatures.
The developed nanocomposite membranes could efficiently be used for
separation and demulsification, and their applications can be explored
in various other fields including selective sorption, catalysis, and
storage in future
Pickering Emulsion-Templated Nanocomposite Membranes for Excellent Demulsification and Oil–Water Separation
A worldwide steady increase in oily wastewater, due to
oil spillage
and various industrial discharges, requires immediate efforts toward
development of an effective strategy and materials to preserve the
natural water bodies. Designing a superwettable fibrous membrane of
robust structure and anti-fouling property for efficient separation
of oil-water mixtures and emulsions is therefore highly demanding.
The electrospun fibrous membrane, which possesses porosity and flexibility
and properties including superwettability and tunable functionality,
can be considered as apposite materials for this cause. In this approach,
we combined two strategies, viz., Pickering emulsion and near gel
resin (nGR) emulsion electrospinning together to produce a fibrous
nanocomposite membrane for efficient oil–water separation and
demulsification. nGR Pickering emulsions were stabilized using hydrophilic
SiO2 nanoparticles and successfully optimized for fabricating
the crosslinked core sheath-structured fibrous membrane. The prepared
membrane provided twofold functionality due to the core sheath structure
of the fibers. The crosslinked polystyrene core offered high oil adsorption
capacity, whereas SiO2-functionalized crosslinked polyvinyl
alcohol sheath provided a rough, superhydrophilic surface with underwater
oleophobic behavior to the membrane. The optimized SiO2-Pickering emulsion-templated nanocomposite membrane demonstrated
excellent underwater anti-oil adhesion behavior (UWOCA ∼148°)
with efficient oil–water separation capacity of more than 99%
and separation flux up to 3346 ± 91 L m–2 h–1. The membrane was evaluated against various oil–water
emulsions and found to have a superior separation efficiency. Moreover,
excellent anti-oil adhesion property provided the intact membrane,
where consistent separation performance was achieved up to 10 separation
cycles without any loss. The membrane was used for separation of hot
oil–water emulsions and showed no structural disintegration
or loss in separation performance when exposed to elevated temperatures.
The developed nanocomposite membranes could efficiently be used for
separation and demulsification, and their applications can be explored
in various other fields including selective sorption, catalysis, and
storage in future
Pickering Emulsion-Templated Nanocomposite Membranes for Excellent Demulsification and Oil–Water Separation
A worldwide steady increase in oily wastewater, due to
oil spillage
and various industrial discharges, requires immediate efforts toward
development of an effective strategy and materials to preserve the
natural water bodies. Designing a superwettable fibrous membrane of
robust structure and anti-fouling property for efficient separation
of oil-water mixtures and emulsions is therefore highly demanding.
The electrospun fibrous membrane, which possesses porosity and flexibility
and properties including superwettability and tunable functionality,
can be considered as apposite materials for this cause. In this approach,
we combined two strategies, viz., Pickering emulsion and near gel
resin (nGR) emulsion electrospinning together to produce a fibrous
nanocomposite membrane for efficient oil–water separation and
demulsification. nGR Pickering emulsions were stabilized using hydrophilic
SiO2 nanoparticles and successfully optimized for fabricating
the crosslinked core sheath-structured fibrous membrane. The prepared
membrane provided twofold functionality due to the core sheath structure
of the fibers. The crosslinked polystyrene core offered high oil adsorption
capacity, whereas SiO2-functionalized crosslinked polyvinyl
alcohol sheath provided a rough, superhydrophilic surface with underwater
oleophobic behavior to the membrane. The optimized SiO2-Pickering emulsion-templated nanocomposite membrane demonstrated
excellent underwater anti-oil adhesion behavior (UWOCA ∼148°)
with efficient oil–water separation capacity of more than 99%
and separation flux up to 3346 ± 91 L m–2 h–1. The membrane was evaluated against various oil–water
emulsions and found to have a superior separation efficiency. Moreover,
excellent anti-oil adhesion property provided the intact membrane,
where consistent separation performance was achieved up to 10 separation
cycles without any loss. The membrane was used for separation of hot
oil–water emulsions and showed no structural disintegration
or loss in separation performance when exposed to elevated temperatures.
The developed nanocomposite membranes could efficiently be used for
separation and demulsification, and their applications can be explored
in various other fields including selective sorption, catalysis, and
storage in future