TY - JOUR

T1 - Synthesis of robust and high-performance aquaporin-based biomimetic membranes by interfacial polymerization-membrane preparation and RO performance characterization

A1 - Zhao,Yang

A1 - Qiu,Changquan

A1 - Li,Xuesong

A1 - Vararattanavech,Ardcharaporn

A1 - Shen,Wenming

A1 - Torres,Jaume

A1 - Helix Nielsen,Claus

A1 - Wang,Rong

A1 - Hu,Xiao

A1 - Fane,Anthony G.

A1 - Tang,Chuyang Y.

AU - Zhao,Yang

AU - Qiu,Changquan

AU - Li,Xuesong

AU - Vararattanavech,Ardcharaporn

AU - Shen,Wenming

AU - Torres,Jaume

AU - Helix Nielsen,Claus

AU - Wang,Rong

AU - Hu,Xiao

AU - Fane,Anthony G.

AU - Tang,Chuyang Y.

PB - Elsevier BV

PY - 2012

Y1 - 2012

N2 - <p>Aquaporins are water channel proteins with excellent water permeability and solute rejection, which makes them promising for preparing high-performance biomimetic membranes. Despite the growing interest in aquaporin-based biomimetic membranes (ABMs), it is challenging to produce robust and defect-free ABMs that can be easily scaled up. In the current study, a thin film composite (TFC) ABM was prepared by the interfacial polymerization method, where AquaporinZ-containing proteoliposomes were added to the m-phenylene-diamine aqueous solution. Control membranes, either without aquaporins or with inactive (mutant) aquaporins, were also similarly prepared. The separation performance of these membranes was evaluated by cross-flow reverse osmosis (RO) tests. Compared to the controls, the active ABM achieved significantly higher water permeability (∼4L/m²hbar) with comparable NaCl rejection (∼97%) at an applied pressure of 5bar. Its permeability was ∼40% higher compared to a commercial brackish water RO membrane (BW30) and an order of magnitude higher compared to a seawater RO membrane (SW30HR), which clearly demonstrates the great potential of the TFC ABM for desalination applications.</p>

AB - <p>Aquaporins are water channel proteins with excellent water permeability and solute rejection, which makes them promising for preparing high-performance biomimetic membranes. Despite the growing interest in aquaporin-based biomimetic membranes (ABMs), it is challenging to produce robust and defect-free ABMs that can be easily scaled up. In the current study, a thin film composite (TFC) ABM was prepared by the interfacial polymerization method, where AquaporinZ-containing proteoliposomes were added to the m-phenylene-diamine aqueous solution. Control membranes, either without aquaporins or with inactive (mutant) aquaporins, were also similarly prepared. The separation performance of these membranes was evaluated by cross-flow reverse osmosis (RO) tests. Compared to the controls, the active ABM achieved significantly higher water permeability (∼4L/m²hbar) with comparable NaCl rejection (∼97%) at an applied pressure of 5bar. Its permeability was ∼40% higher compared to a commercial brackish water RO membrane (BW30) and an order of magnitude higher compared to a seawater RO membrane (SW30HR), which clearly demonstrates the great potential of the TFC ABM for desalination applications.</p>

KW - Aquaporin

KW - Biomimetic membranes

KW - Reverse osmosis

KW - Interfacial polymerization

KW - Thin film composite

U2 - 10.1016/j.memsci.2012.08.039

DO - 10.1016/j.memsci.2012.08.039

JO - Journal of Membrane Science

JF - Journal of Membrane Science

SN - 0376-7388

VL - 423-424

SP - 422

EP - 428

ER -