TY - GEN
T1 - Selective water transport across uniform sub-nanometer pores in microfabricated membranes
AU - Humplik, T.
AU - Raj, R.
AU - Maroo, S. C.
AU - Laoui, T.
AU - Wang, E. N.
N1 - Funding Information:
We thank Prof. Michael Tsapatsis (University of Minnesota) and Prof. Rohit Karnik (MIT) for helpful discussions and advice. This work was performed in part at the Center for Nanoscale Systems (CNS), a member of the National Nanotechnology Infrastructure Network (NNIN), which is supported by the National Science Foundation under NSF award no. ECS-0335765. CNS is part of Harvard University. This work was funded by the King Fahd University of Petroleum and Minerals in Dhahran, Saudi Arabia through the Center for Clean Water and Clean Energy at MIT and KFUPM under Project No. R10-CW-09. R.R. acknowledges fellowship support from Battelle’s National Security Global Business.
Funding Information:
We thank Prof. Michael Tsapatsis (University of Minnesota) and Prof. Rohit Karnik (MIT) for helpful discussions and advice. This work was performed in part at the Center for Nanoscale Systems (CNS), a member of the National Nanotechnology Infrastructure Network(NNIN),whichissupportedbytheNational Science Foundation under NSF award no. ECS-0335765. CNS is part of Harvard University. This work was funded by the King Fahd University of Petroleum and Minerals in Dhahran, Saudi Arabia through etCehnter for Clean Water and Clean Energy at MIT and KFUPM under Project No. R10-CW-09. R.R. acknowledges fellowship support from Battelle’s National Security Global Business.
Publisher Copyright:
© 2014TRF.
PY - 2014
Y1 - 2014
N2 - We demonstrate selective water transport through uniform sub-nanometer pores using microfabricated zeolite membranes. Despite advances in micro/nanoscale manipulation, creating well-defined sub-nanometer pores for transport studies is challenging. We fabricated the first model platform to characterize and measure water transport limited to ≈5.5 Å pores over >20 mm2 areas. Furthermore, with these membranes, we elucidated the effect of surface chemistry and pore confinement on water permeability. Using a custom-built flow cell, we showed osmotically-driven water transport where a more hydrophobic interface allows for an ≈10x increase in water flux. These insights will help tailor high performance desalination membranes, and can be extended to gas separation, sensing, and energy storage systems.
AB - We demonstrate selective water transport through uniform sub-nanometer pores using microfabricated zeolite membranes. Despite advances in micro/nanoscale manipulation, creating well-defined sub-nanometer pores for transport studies is challenging. We fabricated the first model platform to characterize and measure water transport limited to ≈5.5 Å pores over >20 mm2 areas. Furthermore, with these membranes, we elucidated the effect of surface chemistry and pore confinement on water permeability. Using a custom-built flow cell, we showed osmotically-driven water transport where a more hydrophobic interface allows for an ≈10x increase in water flux. These insights will help tailor high performance desalination membranes, and can be extended to gas separation, sensing, and energy storage systems.
UR - http://www.scopus.com/inward/record.url?scp=85061901641&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85061901641&partnerID=8YFLogxK
U2 - 10.31438/trf.hh2014.30
DO - 10.31438/trf.hh2014.30
M3 - Conference contribution
AN - SCOPUS:85061901641
T3 - Technical Digest - Solid-State Sensors, Actuators, and Microsystems Workshop
SP - 107
EP - 108
BT - 2014 Solid-State Sensors, Actuators and Microsystems Workshop, Hilton Head 2014
A2 - Allen, Mark G.
A2 - Mehregany, Mehran
PB - Transducer Research Foundation
T2 - 2014 Solid-State Sensors, Actuators and Microsystems Workshop, Hilton Head 2014
Y2 - 8 June 2014 through 12 June 2014
ER -