以PMDA-ODA型聚酰胺酸为原料,通过掺杂钛硅分子筛(TS-1)制备气体分离用杂化功能炭膜.系统考察了钛硅分子筛(TS-1)掺杂量、炭化温度等因素对功能炭膜气体渗透性和分离性能的影响,利用FT- IR、XRD、TG和TEM等分析手段对TS- 1/C杂化原膜及其在不同温度下炭化的炭膜结构和性能进行表征.结果表明:掺杂钛硅分子筛(TS-1)可大幅提高炭膜对CO2的渗透性能；当掺杂质量分数为20％,炭化温度为600℃时,CO2、H2、O2、N2、CH4的渗透系数分别可达9087 Barrer、8111 Barrer、2 017 Barrer、426 Barrer和357 Barrer；当炭化温度为700℃以上时,功能炭膜对各气体的渗透性急剧降低,气体分离性大幅提高.
参考文献
| [1] | Steell K M;William J .Koros,An investigation of the effects of pyrolysis parameters on gas scparation properties of carbon materials[J].CARBO,2005,43:1843-1856. |
| [2] | Mark B.Shiflett;Henry C.Foley .Reproducible production of nanoporus carbon membranes[J].Carbon: An International Journal Sponsored by the American Carbon Society,2001(9):1421-1446. |
| [3] | Xiao Y;Chung T S;Chung M T et al.Effects of brominating Matrimid polyimide on the physical and gas transport properties of derived carbon membranes[J].Journal of Physical Chemistry B,2005,109(40):18741-18748. |
| [4] | Kim YK;Park HB;Lee YM .Gas separation properties of carbon molecular sieve membranes derived from polyimide/polyvinylpyrrolidone blends: effect of the molecular weight of polyvinylpyrrolidone[J].Journal of Membrane Science,2005(1/2):159-167. |
| [5] | Rao M B;Sircar S .Nanoporous carbon membranes for separation of gas mixtures by selective surface flow[J].Journal of Membrane Science,1993,85:253-264. |
| [6] | Anand M;Langsam M;Rao M B .Multicomponent gas separation by selective surface flow (SSF) and poly-trimethylsilylpropyne (PTMSP) membranes[J].Journal of Membrane Science,1997,123:17-25. |
| [7] | Sircar S;Rao M B;Thaeron C M A .Selective surface flow membrane for gas separation[J].Separation Science and Technology,1999,34:2081-2092. |
| [8] | T.A. Centeno;A.B. Fuertes .Influence of separation temperature on the performance of adsorption-selective carbon membranes[J].Carbon: An International Journal Sponsored by the American Carbon Society,2003(10):2016-2019. |
| [9] | 赵根祥;贾世军;钱树安 .PI膜转变为炭膜过程中的结构变化[J].炭素技术,1997,5:12-17. |
| [10] | Ermannor;Johnb;Perironald J et al.Spectroscopic characterization of silicalite2I and titanium silicalite2I[J].Journal of Catalysis,1995,157(02):482-500. |
| [11] | B. Zhang;T. Wang;S. Zhang .Preparation and characterization of carbon membranes made from poly(phthalazinone ether sulfone ketone)[J].Carbon: An International Journal Sponsored by the American Carbon Society,2006(13):2764-2769. |
| [12] | Konno H.;Inagaki M.;Nakahashi T. .STATE ANALYSIS OF NITROGEN IN CARBON FILM DERIVED FROM POLYIMIDE KAPTON[J].Carbon: An International Journal Sponsored by the American Carbon Society,1997(5):669-674. |
| [13] | Hatori H.;Shiraishi M.;Yoshihara M.;Kimura T.;Yamada Y. .THE MECHANISM OF POLYIMIDE PYROLYSIS IN THE EARLY STAGE[J].Carbon: An International Journal Sponsored by the American Carbon Society,1996(2):201-208. |
| [14] | 李传峰,钟顺和.聚酰亚胺-二氧化硅杂化膜的制备与表征[J].催化学报,2001(05):449-452. |
| [15] | Muller U;Steek W .Ammonium-based alkaline-free synthesis of MFI-type boronand titanium zeolites[J].Studies in Surface Science and Catalysis,1994,84:203-210. |
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