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    题名: 以水相系統合成類沸石咪唑骨架材料(ZIF-90)及其在生物酵素催化上的應用;Water-Based Synthesis of Zeolitic Imidazolate Framework-90 (ZIF-90) with a Controllable Particle Size and its Application in Biocatalysis
    作者: 王劭群;Wang,Shao-Chun
    贡献者: 化學學系
    关键词: 微孔洞材料;類沸石咪唑骨架材料;固定化酵素;金屬有機骨架材料;環保;Microporous material;Zeolitic imidazolate framework;Immobolized enzyme;Metal-organic framework;Environmental friendly
    日期: 2014-08-14
    上传时间: 2014-10-15 14:39:06 (UTC+8)
    出版者: 國立中央大學
    摘要: 類沸石咪唑骨架材料是屬於金屬有機骨架材料的範疇,其主要是利用咪唑或是咪唑衍生
    物(Im)當作有機配位體與鋅、鈷等過渡金屬(M)鍵結所形成的聚合物,結構中Im-M-Im的
    鍵結角度約為145度,與天然沸石中Si-O-Si的鍵結角度大約相同,故被稱之為類沸石咪
    唑骨架材料,目前主要有儲存氣體、分離混和氣體、非均相催化和藥物載體的應用。本
    論文所介紹的類沸石咪唑骨架材料-90(Zeolitic Imidazolate Framework-90;ZIF-90)
    已有報導指出此材料易於官能基化的特點,並具有極為優異的水熱穩定性。然而,目前
    合成ZIF-90之方法大多需使用有機溶劑(如DMF),但若大量製造ZIF-90時,所產生的廢
    液將對於環境造成負擔。為了符合綠色化學之製程,此研究中,我們提供了一種於水相
    系統中製備ZIF-90之方法,能夠製造出粒徑大小一致且尺寸具有均一性的ZIF-90。;In zeolitic imidazolate frameworks (ZIFs), a subclass of metal–organic
    frameworks (MOFs), metal ions such as Zn2+ and Co2+ are linked through the
    nitrogen atoms of the deprotonated imidazolate to form neutral frameworks
    and provide a tunable crystalline structure and porosity and a high internal
    surface area. Additionally, the M–Im–M angle is similar to that of the
    Si–O–Si angle (145o) preferred in zeolites. This fact has led to the
    synthesis of a large number of ZIFs with zeolite-type tetrahedral
    topologies. Therefore, ZIFs have recently attracted considerable attention
    for applications in gas storage, separation of small molecules,
    heterogeneous catalysis, sensors and drug delivery.
    Zeolitic Imidazolate Framework-90 (ZIF-90), the main character of the
    thesis, was reported to have high thermal and solvent stability. However,
    most of the strategies reported so far on the synthesis of ZIF-90 have
    involved the use of solvents, such as dimethyl formamide (DMF), methanol, or
    other organic solvents which are also expensive, in addition to their
    environmental concerns, such as toxicity, high-pollution, and waste
    treatment issues. Herein, we report for the first time, a rapid and
    eco-friendly strategy for the synthesis of ZIF-90 under aqueous conditions,
    and thus, ZIF-90 having uniform particle sizes can be produced.
    显示于类别:[化學研究所] 博碩士論文

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