Journal
ACS NANO
Volume 6, Issue 11, Pages 10130-10138Publisher
AMER CHEMICAL SOC
DOI: 10.1021/nn303869m
Keywords
graphene membranes; nanofiltration; filtration; nanofluidics
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Funding
- King Fahd University of Petroleum and Minerals in Dhahran, Saudi Arabia, through the Center for Clean Water and Clean Energy at MIT
- KFUPM [R10-CW-09]
- ORNL's Shared Research Equipment (ShaRE) User Program
- Office of Basic Energy Sciences, U.S. Department of Energy
- National Science Foundation [ECS-0335765]
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We report graphene composite membranes with nominal areas more than 25 mm(2) fabricated by transfer of a single layer of CVD graphene onto a porous polycarbonate substrate. A combination of pressure-driven and diffusive transport measurements provides evidence of size-selective transport of molecules through the membrane, which is attributed to the low-frequency occurrence of intrinsic 1-15 nm diameter pores in the CVD graphene. Our results present the first step toward the realization of practical membranes that use graphene as the selective material.
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