1. 毕业设计（论文）的内容和要求
研究内容：研究制备中空纤维负载型超薄DDR分子筛膜的影响因素，控制合成温度、时间和晶种百分比等因素调节制备的Sigma-1分子筛尺寸的大小，进而通过球磨的方法进一步减小分子筛尺寸。
接着考察合成方式（水浴、油浴）和合成条件（合成时间、合成液组成）等，希望制备出超薄（1 μm）高通量DDR分子筛膜，满足H2渗透性>110-7 mol/m2 s Pa。
基本要求：1、查阅相关文献，具备英文文献阅读、整理和归纳的能力；2、熟悉分子筛膜气体渗透与分离的基本原理；3、掌握实验数据处理分析能力，学会Origin制图；4、规范书写毕业论文，认真准备答辩ppt。
2. 参考文献
[1] H. Gies. (1984). "Studies on clathrasils: Ⅶ. a new clathrate compound of silica: synthesis, crystallographic and thermal properties." Journal of inclusion phenomena 2: 275-278.[2] Den Exter, M. J., et al. (1994). "Separation of Permanent Gases on the All-Silica 8-Ring Clathrasil DD3R." Stud Surf Sci Catal 84: 1159-1166.[3] A. Stewart, Johnson, et al. (1988). "Synthesis and characterisation of crystalline aluminosilicate Sigma-1. " Stud Surf Sci Catal 37: 57-64.[4] Valyocsik. E. W. (1987). "Crystalline silicate ZSM-58 and process for its prepartion using a methyltropinium cation. " US Patent 4698217.[5] Zones. S. I., Holtermann. D. L., et al. (1993). "Zeolite SSZ-28. " US Patent 5200377.[6] Gascon, J., et al. (2008). "Accelerated synthesis of all-silica DD3R and its performance in the separation of propylene/propane mixtures." Microporous and Mesoporous Materials 115(3): 585-593.[7] 杨启亮，仲盛来等. (2009) 含氟体系中DDR型分子筛的合成. 无机化学学报 25(2): 191-194.[8] Sen, M., et al. (2014). "Rapid Synthesis of DDR Zeolite at Room Temperature." Journal of the American Ceramic Society 97(1): 52-55.[9] Zhang, J., et al. (2016). "Synthesis and characterization of all-silica DDR zeolite by microwave heating." Microporous and Mesoporous Materials 219: 103-111.[10] Gcyener, C., et al. (2011). "Facile synthesis of the DD3R zeolite: performance in the adsorptive separation of buta-1,3-diene and but-2-ene isomers." Journal of Materials Chemistry 21(45): 18386.[11] Zhang, Y, et al. (2016). "Rapid synthesis and characterization of DD3R zeolite with(NH_4 )_2 SiF_6 as silica source." Microporous and Mesoporous Materials 225: 312-322.[12] Gu, X., et al. (2013). "Rapid synthesis of pure DD3R zeolite using ball-milled Sigma-1 seeds under static conditions." Journal of Materials Science 48(18): 6286-6292.[13] Tomita, T., et al. (2004). "Gas separation characteristics of DDR type zeolite membrane." Microporous and Mesoporous Materials 68(1-3): 71-75.[14] Das. N, et al. (2014). "Sonication mediated hydrothermal process an efficient method for the rapid synthesis of DDR zeolite membranes." RSC Advances 4(36): 19043.[15] Zheng, Z., et al. (2008). "Synthesis, characterization and modification of DDR membranes grown on α-alumina supports." Journal of Materials Science 43(7): 2499-2502.[16] Lin. Y. S., et al. (2008). "Gas permeation through DDR-type zeolite membranes at high temperatures." AIChE Journal 54(6): 1478-1486.[17] Nakao. Shin., et al. (1997). "Silicalite membranes modified by counterdiffusion CVD technique. " Ind Eng Chem Res 36: 4217-4223.[18] Zhang, B., et al. (2008). "Selective Defect-Patching of Zeolite Membranes Using Chemical Liquid Deposition at Organic/Aqueous Interfaces." Advanced Functional Materials 18(21): 3434-3443.[19] Wang, L., et al. (2017). "Preparation of defect-free DDR zeolite membranes by eliminating template with ozone at low temperature." Journal of Membrane Science 539: 152-160.[20] Himeno. Shuji., et al. (2007). "Synthesis and permeation properties of a DDR-type zeolite membrane for separation of CO_2/CH_4 gaseous mixtures." Ind Eng Chem Res 46: 6989-6997.[21] Yang, S., et al. (2016). "DDR-type zeolite membrane synthesis, modification and gas permeation studies." Journal of Membrane Science 505: 194-204.
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