TY - JOUR
T1 - Development of High-Flux and Robust Reinforced Aliphatic Polyketone Thin-Film Composite Membranes for Osmotic Power Generation
T2 - Role of Reinforcing Materials
AU - Sun, Yuchen
AU - Cheng, Liang
AU - Shintani, Takuji
AU - Tanaka, Yasuhiro
AU - Takahashi, Tomoki
AU - Itai, Takuya
AU - Wang, Shengyao
AU - Fang, Lifeng
AU - Matsuyama, Hideto
N1 - Publisher Copyright:
© 2018 American Chemical Society.
PY - 2018/10/10
Y1 - 2018/10/10
N2 - Membranes used for pressure-retarded osmosis (PRO) are required to be mechanically strong due to high external hydraulic pressures on the draw solution (DS) side. In this study, a series of nonwoven fabrics of varying thickness, density, and hydrophilicity were used to fabricate reinforced aliphatic polyketone (PK) membranes with excellent mechanical strength and pressure resistance. Three suitable nonwoven fabrics are selected based on the integrities of the PK layers formed on their surfaces. As a result, guidance for choosing suitable reinforcing materials for PK membranes is provided. We show that a PK-based thin-film-composite (TFC) membrane reinforced by an 11-μm-thick polyester (PET) nonwoven fabric provides a flux of 24.7 L m-2 h-1 (in "active layer facing feed solution", AL-FS mode, 0.6 mol L-1 NaCl as the DS), while maintaining a pressure resistance of 28 bar. This membrane is shown to be capable of producing a power density of at least 6.1 W m-2 in PRO evaluation (with 0.6 mol L-1 NaCl).
AB - Membranes used for pressure-retarded osmosis (PRO) are required to be mechanically strong due to high external hydraulic pressures on the draw solution (DS) side. In this study, a series of nonwoven fabrics of varying thickness, density, and hydrophilicity were used to fabricate reinforced aliphatic polyketone (PK) membranes with excellent mechanical strength and pressure resistance. Three suitable nonwoven fabrics are selected based on the integrities of the PK layers formed on their surfaces. As a result, guidance for choosing suitable reinforcing materials for PK membranes is provided. We show that a PK-based thin-film-composite (TFC) membrane reinforced by an 11-μm-thick polyester (PET) nonwoven fabric provides a flux of 24.7 L m-2 h-1 (in "active layer facing feed solution", AL-FS mode, 0.6 mol L-1 NaCl as the DS), while maintaining a pressure resistance of 28 bar. This membrane is shown to be capable of producing a power density of at least 6.1 W m-2 in PRO evaluation (with 0.6 mol L-1 NaCl).
UR - http://www.scopus.com/inward/record.url?scp=85054295748&partnerID=8YFLogxK
U2 - 10.1021/acs.iecr.8b03392
DO - 10.1021/acs.iecr.8b03392
M3 - Article
AN - SCOPUS:85054295748
SN - 0888-5885
VL - 57
SP - 13528
EP - 13538
JO - Industrial and Engineering Chemistry Research
JF - Industrial and Engineering Chemistry Research
IS - 40
ER -