隨著工業高速發展，人們過度燃燒石化燃料造成大氣中二氧化碳濃度逐年增加，造成全球暖化與極端氣候等現象。而膜分離氣體技術具有低耗能源、簡單操作、高效率及環保的特色而被廣受推崇，其中金屬有機骨架（MOF）的種類多樣性與優良的氣體吸附表現使 MOF 薄膜逐漸引起眾人的關注。根據本實驗室之前的研究結果，ZnV-bpy、In-bpy 兩個化合物對於氮氣和二氧化碳的吸附量有明顯差異，並且 In-bpy 展現出在二甲苯異構物中對於對二甲苯（p-xylene）的吸附量最高，因此它們在氣體分離上具有相當大的潛力。因此在本研究中透過調整播種條件、添加低沸點溶劑和表面修飾基板等方法，達成優化 ZnV-bpy 與 In-bpy 薄膜的製備過程，並針對歷程中發生的現象藉由 ATR-FTIR、SEM 鑑定出的性質提出解釋與說明。

Ever since the rapid development of industrial revolution, humans have tremendously increased the rate of changing the climate. Deforestation, burning fossil fuels and overpopulation are increasingly adding large amounts of greenhouse gases to the atmosphere, exacerbating the greenhouse effect and global warming. To solve this problem, gas separation membranes technologies are widely applied to isolate different gases. Owing to low energy requirements, low cost and environmental friendly, this technology has gained more and more attraction and be used in various field. However, it is worth noting that among many kinds of porous materials, metal-organic frameworks (MOF) has gained particular attention for membrane applications because of their high gas absorption performance and their versatile structures which can be suitable for different gas separation needs. According to previous research results of our lab, ZnV-bpy and In-bpy have significant gas absorption between nitrogen (N2) and carbon dioxide (CO2). On the other hand, among three isomers of xylene, In-bpy compound demonstrates the highest gas absorption amounts in para xylene solvent. Therefore, they have huge potential in gas separation. In order to optimize the methods for synthesizing ZnV-bpy and In-bpy membrane, I tried to adjust seeding conditions and use surface-modified substrate, also add some additional low boiling point solvents such as methanol, ethanol and isopropyl alcohol toward reaction. At last, I successfully developed how to prepare single-phase and continuous ZnV-bpy and In-bpy MOF membrane materials.

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