综述了提高微孔二氧化硅膜疏水性的方法以及微孔二氧化硅膜材料在氢气分离方面的应用.孔表面羟基是导致微孔二氧化硅膜亲水的主要原因,因此在溶胶-凝胶反应阶段用疏水基团来修饰溶胶,可以在最终材料的孔表面引入疏水基团,降低羟基浓度,从而提高其疏水性.修饰后的二氧化硅膜孔结构没有显著的变化,可以应用于氢气分离等领域.
参考文献
| [1] | Peters TA;Fontalvo J;Vorstman MAG;Benes NE;van Dam RA;Vroon ZAEP;van Soest-Vercammen ELJ;Keurentjes JTF .Hollow fibre microporous silica membranes for gas separation and pervaporation - Synthesis, performance and stability[J].Journal of Membrane Science,2005(1/2):73-80. |
| [2] | Van Veen H M;Bracht M.Feasibility of the application of porous inorganic gas separation membranes in some large-scale chemical processes[A].England:ECN Brandstoffen,Conversie & Milieu,1996:641. |
| [3] | Uhlhorn R J R;Veld M I et al.High permselectivities of microporous silica-modified γ-alumina membranes[J].Journal of Materials Science Letters,1989,8:1135. |
| [4] | Rune Bredesen.Key points in the development of catalytic membrane reactors[A].Praha,Czech Republic:Czech Society of Chemical Engineering,1998:23. |
| [5] | Donald R Ulrich .Prospects for Sol-gel pocess[J].Journal of Non-Crystalline Solids,1990,121(1-3):465. |
| [6] | de Vos Renate M;Henk Verweij .High-selectivity,high-flux silica membranes for gas separation[J].Science,1998,279:1710. |
| [7] | 韦奇,李健林,宋春林,刘卫,陈初升.微孔二氧化硅膜的制备、氢气分离以及水热稳定性研究[J].无机材料学报,2004(01):133-139. |
| [8] | V.Ridhard;E.Favre;D.Tondeur .Experimental study of hydrogen,carbon dioxide and nitrogen permeation through a microporous silica membrane[J].Chemical Engineering Journal,2001(3):593-598. |
| [9] | Turov VV.;Mironyuk IF. .Adsorption layers of water on the surface of hydrophilic, hydrophobic and mixed silicas[J].Colloids and Surfaces, A. Physicochemical and Engineering Aspects,1998(3):257-263. |
| [10] | Daniel Brunel et al.Transition-metal ligands bound onto the micelle-templated silica surface[J].Coordination Chemistry Reviews,1998,178-180(02):1085. |
| [11] | DellaVolpe C;Dire S;Pagani E .A comparative analysis of surface structure and surface tension of hybrid silica films[J].Journal of Non-Crystalline Solids: A Journal Devoted to Oxide, Halide, Chalcogenide and Metallic Glasses, Amorphous Semiconductors, Non-Crystalline Films, Glass-Ceramics and Glassy Composites,1997(1/2):51-60. |
| [12] | Haryadi et al.Characterization of unsupported Silica Membranes[OL].http://www.membrane.unsw.edu.au/imstec03/content/papers/FOUL/imstec023.pdf |
| [13] | A. Venkateswara Rao;manish M. Kulkarni .Hydrophobic properties of TMOS/TMES-based silica aerogels[J].Materials Research Bulletin: An International Journal Reporting Research on Crystal Growth and Materials Preparation and Characterization,2002(9):1667-1677. |
| [14] | A. Venkateswara Rao;Ravindra R. Kalesh .Comparative studies of the physical and hydrophobic properties of TEOS based silica aerogels using different co-precursors[J].Science and technology of advanced materials,2003(6):509-515. |
| [15] | Yokogawa H;Yokoyama M .Hydrophobic silica aerogels[J].Journal of Non-Crystalline Solids,1995,186:23. |
| [16] | Duke M C et al.Hydrothermal stable templated molecular sieve silica (TMSS)membranes for gas separation[OL].http://www.membrane.unsw.edu.au/imstec03/content/papers/BINA/imstec115.pdf |
| [17] | El Rassy H;Pierre A C .NMR and IR spectroscopy of silica aerogels with different hydrophobic characteristics[J].Journal of Non-Crystalline Solids,2005,351(19-20):1603. |
| [18] | Nagaraja D Hegde;Venkateswara Rao A.Organic modification of TEOS based silica aerogels using hexadecyltrimethoxysilane as a hydrophobic reagent[J].Applied Surface Science,2006(04) |
| [19] | Hye-Jeong Jeong;Dong-Kwon Kim;Soo-Bok Lee .Preparation of Water-Repellent Glass by Sol-Gel Process Using Perfluoroalkylsilane and Tetraethoxylsilane[J].Journal of Colloid and Interface Science,2001(1):130-134. |
| [20] | de Vos Renate M.;Verweij Henk;Maier Wilhelm F. .Hydrophobic silica membranes for gas separation[J].Journal of Membrane Science,1999(1):277-288. |
| [21] | 韦奇,李健林,宋春林,刘卫,陈初升.憎水二氧化硅膜的制备、表征及水热稳定性研究[J].无机材料学报,2004(02):417-423. |
| [22] | de Vos RM.;Verweij H. .Improved performance of silica membranes for gas separation[J].Journal of Membrane Science,1998(1/2):37-51. |
| [23] | Benes N E;Nijmeijer A;Verweij H.[A].Netherlands:Elsevier Science,2000:355. |
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