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采用水蒸汽辅助凝胶转化法合成TAPO-5分子筛膜,使用XRD、SEM和UV-Vis对膜层进行了表征,并与传统水热晶化法进行了对比.通过探讨老化模式和晶化时间对TAPO-5分子筛膜表面形貌、晶粒结构与交联性以及膜层覆盖度与致密性的影响,发现使用水蒸汽辅助凝胶转化法,在预先老化条件下晶化48 h,有利于TAPO-5分子筛在载体表面的生长,在多孔α-Al2O3载体表面形成完整、致密的TAPO-5分子筛膜,也有利于形成骨架钛.

参考文献

[1] Yu J H,Xu R R.Rich structure chemistry in the aluminophosphate family.Acc.Chem.Res.,2003,36(7):481-490.
[2] Zahedi-Niaki M H,Zaidi S J,Kaliaguine S.Acid properties of titanium aluminophosphate molecular sieves.Micropor Mesopor.Mater,1999,32(3):251-255.
[3] Zahedi-Niaki M H,Kapoor M P,Kaliaguine S.H2O2 oxidation and epoxidation of hydrocarbons and alcohols over titanium aluminophosphates TAPO-5,TAPO-11,and TAPO-36.J.Catal.,1998,177(2):231-239.
[4] Lee S O,Raja R,Hartis K D M,et al.Mechanistic insights into the conversion of cyclohexene to adipic acid by H2O2 in the lpresence of a TAPO-5 catalyst.Angew.Chem.Int.ed,2003,115(13):1558-1561.
[5] Lang L,Liu X F,Hu M L,et al.Highly enhanced phenol hydroxylation in[h0h]-oriented Fe-ZSM-5 membranes.Chem.Cat.Chem.,2009,1(4):472-478.
[6] LUO Min,WANG Zheng,WANG Yan,et al.Oriented ZSM-5 zeolite membranes on biomorphic SiSiC ceramics for microreactors.Journal of Inorganic Materials,2009,24(2):330-334.
[7] WANG Xiao-Dong,YAN Jing,HUANG Wei,et al.Preparation and characterization of ultrafine crystal TS-1 films.Journal of Inorganic Materials,2011,26(1):85-90.
[8] CHENG Zhi-Lin,CHAO Zi-Sheng,FANG Wei-Ping,et al.Synthesis regularity of NaA zeolite membrane in microwave field.Journal of Inorganic Materials,2003,18(6):1306-1312.
[9] Zaidi A,Sameen S,Sohrab R.Progress towards a dry process for the synthesis of zeolite-a review.Rev.Chem.Eng.,2005,21(5):265-306.
[10] Hunt H K,Lew C M,Sun M,et al.Pure-silica zeolite thin films by vapor phase transport of fluoride for low-k applications.Micropor Mesopor Mater,2010,128(1/3):12-18.
[11] Alfaro S,Arruebo M,Coronas J,et al.Preparation of MFI type tubular membranes by steam-assisted crystallization.Micropor.Mesopor Mater,2001,50(2/3):195-200.
[12] Matsufuji T,Nishiyama N,Ueyama K,et al.Permeation characteristics of butane isomers through MFI-type zeolitic membranes.Catal.Today,2000,56(1/3):265-273.
[13] Yao J F,Zeng C F,Zhang L X,et al.Vapor phase transport synthesis of SAPO-34 films on cordierite honeycombs.Mater Chem.Phys.,2008,112(2):637-640.
[14] ZENG Chang-Feng,ZI-IANG Li-Xiong,WANG Huan-Ting,et al.Synthesis of ZnAPO-34 films by vapor-phase transport method.Chemical Journal of Chinese Universities,2004,25(2):204-207.
[15] Chen B H,Huang Y N.Examining the self-assembly of microporous material AIPO4-11 by dry-get conversion.J.Phys.Chem.C,2007,111(42):15236-15243.
[16] Zanjanchi M A,Rashidi M K.Structural charge transfer in the aluminophosphate molecular sieves by diffuse reflectance spectroscopy.Spectrochim.ActaA,1999,55(5):947-954.
[17] Chang Z X,Koodali R,Krishna R M,et al.Photoinduced charge separation of methylphenothiazine in vanadium-and titaniumcontaining AIPO-5 and A1PO-11.J.Phys.Chem.B,2000,104(23):5579-5585.
[18] Tian D Y,Yan W F,Cao X J,et al.Morphology changes of transitionmetal-substituted aluminophosphate molecular sieve AIPO4-5crystals.Chem.Mater,2008,20(6):2160-2164.
[19] Maurelli S,Vishnuvarthan M,Chiesa M,et al.Elucidating the nature and reactivity of Ti ions incorporated in the framework of AIPO-5 molecular sieves.New evidence from 31p hyscore spectroscopy.J.Am.Chem.Soc.,2011,133(19):7340-7373.
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