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Fabrication of Silica-MFI Zeolite Membranes for Separation of CO2/N2 Gas Mixture

Authors： ZHANG Bao-Quan，SUN Liang，ZHENG Meng-Yao，YANG Jun，LIU Xiu-Feng

Units： (State Key Laboratory of Chemical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China)

KeyWords： Zeolite membrane; in-situ crystallization; surface modification

ClassificationCode：O613.72；O611.4

year,volume(issue):pagination： 2017,37(2):26-31

Abstract：

The porous ?-Al2O3 substrates were treated or modified to change the surface properties. The silica-MFI zeolite films were synthesized on treated or modified ?-Al2O3 substrates by in-situ crystallization. The experimental results by SEM, XRD and contact angle revealed that the untreated porous ?-Al2O3 substrate, and that treated by using H2O2 or with a zirconia intermediate layer were hydrophilic, on which the continuous zeolite film could not be formed. While the porous ?-Al2O3 substrate modified by using (3-chloropropyl)trimethoxysilane (3-CP-TMS) and dodecyltrimethoxysilane (DMS) or covered with a chitosan layer was hydrophobic, on which the continuous and dense zeolite membrane could be formed. The synthesized zeolite membrane on the porous ?-Al2O3 substrate modified with DMS or covered with a chitosan layer were preferentially oriented. The hydrophobic nature of the substrate surface should be the prerequisite for synthesizing continuous zeolite membranes, at the same time, a proper H2O/Si ratio would be a critical factor for the formation of a dense silica-MFI membrane. After being applied in separation of CO2/N2 gas mixture, the MFI membrane synthesized on DMS-modified ?-Al2O3 substrate had an increased selectivity for CO2.

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[1] McLeary E E, Jansen J C, Kapteijn F. Zeolite based films, membranes and membrane reactors: Progress and prospects. Micropor. Mesopor. Mater., 2006, 90: 198?220
[2] Caro J, Noack M. Zeolite membranes–Recent developments and progress. Micropor. Mesopor. Mater., 2008, 115: 215?233
[3] Zhou M, Zhang B Q, Liu X F. Oriented growth and assembly of zeolite crystals on substrates. Chinese Sci. Bull., 2008, 53: 801?816
[4] Pina M P, Mallada R, Arruebo M, Urbiztondo M, Navascués N, de la Iglesia O, Santamaria J. Zeolite films and membranes: Emerging applications. Micropor. Mesopor. Mater., 2011, 144: 19?27
[5] Pham T C T, Kim H S, Yoon K B. Growth of uniformly oriented silica MFI and BEA zeolite films on substrates. Science, 2011, 334: 1533?1538
[6] Xu Ru-Ren (徐如人), Pang Wen-Qin (庞文琴), Yu Ji-Hong (于吉红), Huo Qi-Sheng (霍启升), Chen Jie-Sheng (陈接胜). Chemistry-Zeolites and Porous Materials (分子筛与多孔材料化学). Beijing: Science Press, 2004. 1?33
[7] Zhang F Z, Fuji M, Takahashi M. In situ growth of continuous b-oriented MFI zeolite memrbanes on porous ?-alumina substrates precoated with a mesoporous silica sublayer. Chem. Mater., 2005, 17: 1167?1173
[8] Zhang B Q, Wang C, Lang L, Cui R L, Liu X F. Selective defect-patching of zeolite membranes using chemical liquid deposition at organic/aqueous interfaces. Adv. Funct. Mater., 2008, 18: 3434?3443
[9] Yuan W H, Wang D L, Li L, MFI-type zeolite membrane on hollow fiber substrate for hydrogen separation. Chinese Sci. Bull., 2011, 56: 2416?2418
[10] Lauridant N, Daou T J, Arnold G, Soulard M, Nouali H, Patarin J, Faye D. Key steps influencing the formation of ZSM-5 films on aluminum substrates. Micropor. Mesopor. Mater., 2012, 152: 1?8
[11] ZHOU Ming(周明), ZHANG Bao-Quan(张宝泉), LIU Xiu-Feng(刘秀凤). Oriented growth of MFI zeolite membrane without transition zone by in-situ method. Chinese J. Inorg. Chem.(Wuji Huaxue Xuebao), 2006, 22: 1750?1754
[12] LANG Lin(郎林), ZHANG Bao-Quan(张宝泉), LIU Xiu-Feng(刘秀凤). Synthesis of oriented silicalite-1 films on glass substrate and its growth mechanism. J. Chem. Ind. Eng. (Huagong Xuebao), 2006, 57: 2229?2232
[13] WANG Xiao-Dong(王晓东), ZHANG Bao-Quan(张宝泉), LIU Xiu-Feng(刘秀凤). Synthesis and characterization of TS-1 zeolite films on the surface of different substrates. Sciencepaper Online(Zhongguo Keji Lunwen Zaixian), 2009, 4: 175?178
[14] Lee J S, Lee Y J, Tae E L, Park Y S, Yoon K B. Synthesis of zeolite as ordered multicrystal arrays. Science, 2003, 301: 818?821
[15] Wang X D, Zhang B Q, Liu X F, Lin J Y S. Synthesis of b-oriented TS-1 films on chitosan-modified ?-Al2O3 substrates. Adv. Mater., 2006, 18: 3261?3265
[16] LIU Xiu-Feng(刘秀凤), LANG Lin(郎林), ZHANG Bao-Quan(张宝泉), Lin Y S. In-situ synthesis of b-oriented silicalite-1 membrane on chitosan-modified silica-zirconia intermediate layer. J. Chem. Ind. Eng. (Huagong Xuebao), 2006, 57:1019?1022
[17] Lang L, Liu X F, Zhang B Q. Controlling the orientation and coverage of silica-MFI zeolite films by surface modification. Appl. Surf. Sci., 2009, 255: 4886?4890
[18] Lang L, Liu X F, Jiang H Y, Lin J Y S, Zhang B Q. Direct evidence of the evolutionary mechanism of zeolite monolayers on the substrate surface in a hydrothermal reaction. Langmuir, 2010, 26: 5895?5900
[19] Liu X F, Wang X D, Na P, Jiang H Y, Lang L, Zhao H S, Zhang B Q. Evolutionary mechanism of b-oriented TS-1 film on porous ?-Al2O3 supported chitosan surface in hydrothermal reactions. Chinese Sci. Bull., 2010, 55: 3131?3137

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