title: Ultrafast Nanofiltration through Large-Area Single-Layered Graphene Membranes.
abstract: 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 cm2high-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.
authors.affiliation: The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, School of Environment and Energy, South China University of Technology , Guangzhou Higher Education Mega Centre, Guangzhou 510006, China.|John A. Paulson School of Engineering and Applied Sciences, Harvard University , 29 Oxford Street, Cambridge, Massachusetts 02138, United States.
authors.forename: Yanzhe
authors.identifier: http://orcid.org/0000-0001-9414-028X
authors.initials: Y
authors.lastname: Qin
authors.affiliation: The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, School of Environment and Energy, South China University of Technology , Guangzhou Higher Education Mega Centre, Guangzhou 510006, China.
authors.forename: Yongyou
authors.initials: Y
authors.lastname: Hu
authors.affiliation: John A. Paulson School of Engineering and Applied Sciences, Harvard University , 29 Oxford Street, Cambridge, Massachusetts 02138, United States.
authors.forename: Stephan
authors.initials: S
authors.lastname: Koehler
authors.affiliation: John A. Paulson School of Engineering and Applied Sciences, Harvard University , 29 Oxford Street, Cambridge, Massachusetts 02138, United States.
authors.forename: Liheng
authors.initials: L
authors.lastname: Cai
authors.affiliation: The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, School of Environment and Energy, South China University of Technology , Guangzhou Higher Education Mega Centre, Guangzhou 510006, China.
authors.forename: Junjie
authors.initials: J
authors.lastname: Wen
authors.affiliation: The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, School of Environment and Energy, South China University of Technology , Guangzhou Higher Education Mega Centre, Guangzhou 510006, China.
authors.forename: Xiaojun
authors.initials: X
authors.lastname: Tan
authors.affiliation: Department of Chemical Engineering, Catalysis for Renewable Fuels Center, University of South Carolina , Columbia, South Carolina 29208, United States.
authors.forename: Weiwei L
authors.initials: WL
authors.lastname: Xu
authors.affiliation: State Key Lab of Nuclear Physics and Technology, Beijing University , Beijing 100871, China.
authors.forename: Qian
authors.initials: Q
authors.lastname: Sheng
authors.affiliation: Collaborative Innovation Center of Chemistry for Energy Materials, College of Chemistry and Chemical Engineering, Xiamen University , Xiamen 361005, China.
authors.forename: Xu
authors.initials: X
authors.lastname: Hou
authors.affiliation: State Key Lab of Nuclear Physics and Technology, Beijing University , Beijing 100871, China.
authors.forename: Jianming
authors.initials: J
authors.lastname: Xue
authors.affiliation: Department of Chemical Engineering, Catalysis for Renewable Fuels Center, University of South Carolina , Columbia, South Carolina 29208, United States.
authors.forename: Miao
authors.initials: M
authors.lastname: Yu
authors.affiliation: The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, School of Environment and Energy, South China University of Technology , Guangzhou Higher Education Mega Centre, Guangzhou 510006, China.
authors.forename: David
authors.identifier: http://orcid.org/0000-0001-6678-5208
authors.initials: D
authors.lastname: Weitz
keywords: graphene nanofiltration; graphene transfer; high-quality graphene; large area graphene; molecular sieving; nanoporous graphene; phase inversion