Crosslinked P84 copolyimide/MXene mixed matrix membrane with excellent solvent resistance and permselectivity
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摘要
MXene is a novel 2D lamellar material with excellent hydrophilicity and permselectivity. MXene was introduced in the P84 polymer matrix and the matrix was crosslinked with triethylenetetramine(TETA) to improve the permselectivity and solvent resistance of the polyimide membrane. The membrane was characterized with SEM, AFM and ATR-FTIR, and effects of MXene content on the membrane morphology and separation performance are investigated. The membrane prepared with 18% P84 and 1% MXene shows high rejection(100%) to gentian violet(408) and high flux(268 L·m~(-2)·h~(-1)) at 0.1 MPa and ambient temperature. MXene endows the membrane with much water channel and denser functional layer which improves the membrane performance obviously. The membrane shows excellent solvent resistance to dimethylformamide(DMF), acetone and methanol after crosslinking with TETA during the 18 days of immersion.
MXene is a novel 2D lamellar material with excellent hydrophilicity and permselectivity. MXene was introduced in the P84 polymer matrix and the matrix was crosslinked with triethylenetetramine(TETA) to improve the permselectivity and solvent resistance of the polyimide membrane. The membrane was characterized with SEM, AFM and ATR-FTIR, and effects of MXene content on the membrane morphology and separation performance are investigated. The membrane prepared with 18% P84 and 1% MXene shows high rejection(100%) to gentian violet(408) and high flux(268 L·m~(-2)·h~(-1)) at 0.1 MPa and ambient temperature. MXene endows the membrane with much water channel and denser functional layer which improves the membrane performance obviously. The membrane shows excellent solvent resistance to dimethylformamide(DMF), acetone and methanol after crosslinking with TETA during the 18 days of immersion.
MXene is a novel 2D lamellar material with excellent hydrophilicity and permselectivity. MXene was introduced in the P84 polymer matrix and the matrix was crosslinked with triethylenetetramine(TETA) to improve the permselectivity and solvent resistance of the polyimide membrane. The membrane was characterized with SEM, AFM and ATR-FTIR, and effects of MXene content on the membrane morphology and separation performance are investigated. The membrane prepared with 18% P84 and 1% MXene shows high rejection(100%) to gentian violet(408) and high flux(268 L·m~(-2)·h~(-1)) at 0.1 MPa and ambient temperature. MXene endows the membrane with much water channel and denser functional layer which improves the membrane performance obviously. The membrane shows excellent solvent resistance to dimethylformamide(DMF), acetone and methanol after crosslinking with TETA during the 18 days of immersion.
引文
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[19]G.Z.Liu,J.Shen,Q.Liu,G.P.Liu,J.Xiong,J.Yang,W.Q.Jin,Ultrathin two-dimensional MXene membrane for pervaporation desalination,J.Membr.Sci.548(2018)548-558.
[20]H.Siddique,E.Rundquist,Y.Bhole,L.G.Peeva,A.G.Livingston,Mixed matrix membranes for organic solvent nanofiltration,J.Membr.Sci.452(2014)354-366.
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[23]M.Mulder,Basic Principles of Membrane Technology,Kluwer,Dordrecht,1996.
[24]J.Wang,P.Chen,B.Shi,W.Guo,M.Jaroniec,Shi-Zhang Qiao,A regularly channeled lamellar membrane for unparalleled water and organics permeation,Angew.Chem.Int.Ed.57(2018)6814-6818.
[2]G.M.Geise,H.B.Park,A.C.Sagle,B.D.Freeman,J.E.McGrath,Water permeability and water/salt selectivity tradeoff in polymers for desalination,J.Membr.Sci.369(1-2)(2011)130-138.
[3]I.Azelee,P.S.Goh,W.J.Lau,A.F.Ismail,M.Rezaei-Dashtarzhandi,K.C.Wong,M.N.Subramaniam,Enhanced desalination of polyamide thin film nanocomposite incorporated with acid treated multiwalled carbon nanotube-titania nanotube hybrid,Desalination 409(2017)163-170.
[4]R.Verbekea,V.Gómezb,Ivo F.J.Vankelecom,Chlorine-resistance of reverse osmosis(RO)polyamide membranes,Prog.Polym.Sci.72(2017)1-15.
[5]S.Hong,In-Chul Kim,T.Tak,Young-Nam Kwon,Interfacially synthesized chlorineresistant polyimide thin film composite(TFC)reverse osmosis(RO)membranes,Desalination 309(2013)18-26.
[6]S.M.Dutczak,F.P.Cuperus,M.Wessling,D.F.Stamatialis,New crosslinking method of polyamide-imide membranes for potential application in harsh polar aprotic solvents,Sep.Sci.Technol.102(2013)142-146.
[7]K.Vanherck,A.Cano-Odena,G.Koeckelberghs,T.Dedroog,I.Vankelecom,Asimplified diamine crosslinking method for PI nanofiltration membranes,J.Membr.Sci.353(2010)135-143.
[8]S.Lu,T.S.Chung,S.H.Goh,K.P.Pramoda,Polyimide modification by a linear aliphatic diamine to enhance transport performance and plasticization resistance,J.Membr.Sci.256(2005)46-56.
[9]C.Ba,J.Langer,J.Economy,Chemical modification of P84 copolyimide membranes by polyethylenimine for nanofiltration,J.Membr.Sci.327(2009)49-58.
[10]X.Qiao,T.S.Chung,Diamine modification of P84 polyimide membranes for pervaporation dehydration of isopropanol,AIChE J.52(2006)3462-3472.
[11]C.Y.Ba,J.Economy,Preparation of PMDA/ODA polyimide membrane for use as substrate in a thermally stable composite reverse osmosis membrane,J.Membr.Sci.363(1-2)(2010)140-148.
[12]N.K.Zaman,R.Rohani,A.W.Mohammad,A.M.Isloor,Polyimide-graphene oxide nanofiltration membrane:characterizations and application in enhanced high concentration salt removal,Chem.Eng.Sci.177(2018)218-233.
[13]Y.X.Yao,C.Y.Ba,S.S.Zhao,W.H.Zheng,J.Economy,Development of a positively charged nanofiltration membrane for use in organic solvents,J.Membr.Sci.520(2016)832-839.
[14]M.Naguib,M.Kurtoglu,V.Presser,J.Lu,J.Niu,M.Heon,L.Hultman,Y.Gogotsi,M.W.Barsoum,Two-dimensional nanocrystals produced by exfoliation of Ti3AlC2,Adv.Mater.23(2011)4248-4253.
[15]B.Anasori,M.R.Lukatskaya,Y.Gogotsi,2D metal carbides and nitrides(MXenes)for energy storage,Nat.Rev.Mater.2(2017)16098-16105.
[16]O.Mashtalir,K.M.Cook,V.N.Mochalin,M.Crowe,M.W.Barsoum,Y.Gogotsi,Dye adsorption and decomposition on two-dimensional titanium carbide in aqueous media,J.Mater.Chem.A 2(2014)14334-14338.
[17]R.L.Han,X.F.Ma,Y.L.Xie,D.Teng,S.H.Zhang,Preparation of a new 2D MXene/PEScomposite membrane with excellent hydrophilicity and high flux,RSC Adv.7(2017)56204-56210.
[18]R.Ding,H.Q.Zhang,Y.F.Li,J.T.Wang,B.B.Shi,H.Mao,J.C.Dang,J.D.Liu,Graphene oxide-embedded nanocomposite membrane for solvent resistant nanofiltration with enhanced rejection ability,Chem.Eng.Sci.138(2015)227-238.
[19]G.Z.Liu,J.Shen,Q.Liu,G.P.Liu,J.Xiong,J.Yang,W.Q.Jin,Ultrathin two-dimensional MXene membrane for pervaporation desalination,J.Membr.Sci.548(2018)548-558.
[20]H.Siddique,E.Rundquist,Y.Bhole,L.G.Peeva,A.G.Livingston,Mixed matrix membranes for organic solvent nanofiltration,J.Membr.Sci.452(2014)354-366.
[21]T.S.Chung,L.Y.Jiang,Y.Li,S.Kalprathipanja,Mixed matrix membranes comprising organic polymers with dispersed organic fillers for gas separation,Prog.Polym.Sci.32(4)(2007)483-507.
[22]J.Campbell,J.D.S.Burgal,G.Szekelya,R.P.Davies,D.C.Braddock,A.Livingston,Hybrid polymer/MOF membranes for organic solvent nanofiltration(OSN):chemical modification and the quest for perfection,J.Membr.Sci.503(2016)166-176.
[23]M.Mulder,Basic Principles of Membrane Technology,Kluwer,Dordrecht,1996.
[24]J.Wang,P.Chen,B.Shi,W.Guo,M.Jaroniec,Shi-Zhang Qiao,A regularly channeled lamellar membrane for unparalleled water and organics permeation,Angew.Chem.Int.Ed.57(2018)6814-6818.
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