%0 Journal Article %J ACS Applied Materials & Interfaces %D 2017 %T Ultrafast Nanofiltration through Large-Area Single-layered Graphene Membranes %A Qin, Yanzhe %A Hu, Yongyou %A Koehler, Stephan A. %A Cai, Liheng %A Wen, Junjie %A Tan, Xiaojun %A Xu, Weiwei L %A Sheng, Qian %A Hou, Xu %A Xue, Jianming %A others %X

Perforated single-layered graphene has demonstrated selectivity and flux that is orders of magnitude greater than state-of-the-art polymer membranes. However, only individual graphene sheets with sizes up to tens of micrometers have been successfully fabricated for pressurized permeation studies. Scaling-up and reinforcement of these atomic membranes with minimum cracks and pinholes remains a major hurdle for practical applications. We develop a large-area in situ, phase-inversion casting technique to create 63 cm2 high-quality single-layered perforated graphene membranes for ultrafast nanofiltration that can operate at pressures up to 50 bar. This result demonstrates the feasibility of our technique for creating robust large-area, high quality, single-layered graphene and its potential use as a pressurized nanofiltration membrane.

%B ACS Applied Materials & Interfaces %I American Chemical Society %V 9 %P 9239–9244 %G eng %U https://pubs.acs.org/doi/abs/10.1021/acsami.7b00504 %N 11