以介孔分子筛SBA-15为模板剂，聚酰亚胺为前驱体，经共混、成膜、炭化及脱模板过程，制备了有序多孔炭膜材料(OPCM)。通过热失重、红外光谱、电子显微镜和 X-射线衍射，分别对前驱体热稳定性、膜表面官能团、微观形貌与微观结构进行了表征。考察了 SBA-15脱除前后的炭膜微观结构与形貌，及 OPCM气体分离性能。结果显示，当炭化温度为650℃、SBA-15用量为1％时，所制得 OPCM的气体分离系数显著高于努森扩散。
Ordered porous carbon membrane materials (OPCM)were prepared by using mesoporous molecule sieves SBA-1 5 as template and polyimide as precursor via a combined process involving the blending,mem-brane-forming,pyrolysis and template removal steps.The thermal stability of precursor,functional groups on membrane surface,structural morphology and microstructure were respectively characterized by the techniques of thermogravimetric analysis,infrared spectroscopy,electron microscopy and X-ray diffraction.The micro-structure and morphology of membranes before and after SBA-1 5 removal,as well as the gas separation per-formance of OPCM,were investigated.Results have shown that the gas separation factors significantly exceed the Knudsen diffusion,when the OPCM was fabricated under the condition of pyrolysis temperature of 650 ℃and the content of SBA-1 5 of 1%.
参考文献
| [1] | Tanja Pietrass.Carbon-Based Membranes[J].MRS bulletin,200610(10):765-769. |
| [2] | Pei Shi Tin;Youchang Xiao;Tai-Shung Chung.Polyimide-Carbonized Membranes for Gas Separation:Structural,Composition,and Morphological Control of Precursors[J].Separation and Purification Reviews,20063/4(3/4):285-318. |
| [3] | Chengdu Liang;Kunlun Hong;Jimmy W.Ma.Synthesis of a Large-Scale Highly Ordered Porous Carbon Film by Self-Assembly of Block Copolymers[J].Angewandte Chemie,200443(43):5785-5789. |
| [4] | Jia, Lichao;Lawrence, Geoffrey;Balasubramanian, V. V.;Choi, Goeun;Choy, Jin-Ho;Abdullah, Aboubakr M.;Elzatahry, Ahmed;Ariga, Katsuhiko;Vinu, Ajayan.Highly Ordered Nanoporous Carbon Films with Tunable Pore Diameters and their Excellent Sensing Properties[J].Chemistry: A European journal,20152(2):697-703. |
| [5] | Takahito Mitome;Yoshiaki Uchida;Yasuyuki Egashira;Norikazu Nishiyama.Synthesis of ordered mesoporous carbon films with a 3D pore structure and the electrochemical performance of electrochemical double layer capacitors[J].Colloids and Surfaces, A. Physicochemical and Engineering Aspects,2014:51-56. |
| [6] | Donald R. Paul.Creating New Types of Carbon-Based Membranes[J].Science,2012Jan.27 TN.6067(Jan.27 TN.6067):413-414. |
| [7] | Song, L.;Feng, D.;Fredin, N.J.;Yager, K.G.;Jones, R.L.;Wu, Q.;Zhao, D.;Vogt, B.D..Challenges in fabrication of mesoporous carbon films with ordered cylindrical pores via phenolic oligomer self-assembly with triblock copolymers[J].ACS nano,20101(1):189-198. |
| [8] | Yousheng Tao;Morinobu Endo;Michio Inagaki.Recent progress in the synthesis and applications of nanoporous carbon films[J].Journal of Materials Chemistry: An Interdisciplinary Journal dealing with Synthesis, Structures, Properties and Applications of Materials, Particulary Those Associated with Advanced Technology,20112(2):313-323. |
| [9] | Kamil P.Gierszal;Mietek Jaroniec.Carbons with Extremely Large Volume of Uniform Mesopores Synthesized by Carbonization of Phenolic Resin Film Formed on Colloidal Silica Template[J].Journal of the American Chemical Society,200631(31):10026-10027. |
| [10] | Shunsuke Tanaka;Anna Doi;Norihito Nakatani.Synthesis of ordered mesoporous carbon films, powders, and fibers by direct triblock-copolymer-templating method using an ethanol/water system[J].Carbon: An International Journal Sponsored by the American Carbon Society,200911(11):2688-2698. |
| [11] | A. I. Lopez-Lorente;B. M. Simonet;M. Valcarcel.The Potential of Carbon Nanotube Membranes for Analytical Separations[J].Analytical chemistry,201013(13):5399-5407. |
| [12] | David S. Sholl;J. Karl Johnson.Making High-Flux Membranes with Carbon Nanotubes[J].Science,20065776(5776):1003-1004. |
| [13] | Chang Hoon Ahn;Youngbin Baek;Changha Lee.Carbon nanotube-based membranes: Fabrication and application to desalination[J].Journal of industrial and engineering chemistry,20125(5):1551-1559. |
| [14] | Shunsuke Tanaka;Norihito Ndkatani;Anna Doi.Preparation of ordered mesoporous carbon membranes by a soft-templating method[J].Carbon: An International Journal Sponsored by the American Carbon Society,201110(10):3184-3189. |
| [15] | Jiansheng Li;Junwen Qi;Chao Liu.Fabrication of ordered mesoporous carbon hollow fiber membranes via a confined soft templating approach[J].Journal of Materials Chemistry, A. Materials for energy and sustainability,201412(12):4144-4149. |
| [16] | Zhang, B.;Shi, Y.;Wu, Y.;Wang, T.;Qiu, J..Preparation and characterization of supported ordered nanoporous carbon membranes for gas separation[J].Journal of Applied Polymer Science,20144(4):39925-1-39925-8. |
| [17] | Andreas Stein;Zhiyong Wang;Melissa A. Fierke.Functionalization Of Porous Carbon Materials With Designed Pore Architecture[J].Advanced Materials,20093(3):265-293. |
| [18] | Bing Zhang;Yi Shi;Yonghong Wu.Towards the Preparation of Ordered Mesoporous Carbon/Carbon Composite Membranes for Gas Separation[J].Separation Science and Technology,20141/5(1/5):171-178. |
| [19] | 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,19962(2):201-208. |
| [20] | Michio Inagaki;Naoto Ohta;Yoshihiro Hishiyama.Aromatic polyimides as carbon precursors[J].Carbon: An International Journal Sponsored by the American Carbon Society,2013:1-21. |
| [21] | Aik Chong Lua;Yi Shen.Preparation and characterization of polyimide-silica composite membranes and their derived carbon-silica composite membranes for gas separation[J].Chemical engineering journal,2013:441-451. |
| [22] | Jie Lei;Jie Fan;Chengzhong Yu;Luyan Zhang;Shiyi Jiang;Bo Tu;Dongyuan Zhao.Immobilization of enzymes in mesoporous materials: controlling the entrance to nanospace[J].Microporous and Mesoporous Materials,20043(3):121-128. |
| [23] | Ho Bum Park;Youn Kook Kim;Ji Min Lee;Sun Yong Lee;Young Moo Lee.Relationship between chemical structure of aromatic polyimides and gas permeation properties of their carbon molecular sieve membranes[J].Journal of Membrane Science,20041/2(1/2):117-127. |
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