沸石咪唑骨架是由金屬單元（例如Zn,Co）和有機(jī)連接體組成的多孔開放結(jié)晶材料。ZIF中的M-Im-M角與Si-O-Si角（145°）類似,這有利于合成大量具有沸石型四面體拓?fù)涞腪IF。由于ZIFs材料具有多孔性和可調(diào)結(jié)構(gòu),其已被廣泛應(yīng)用于氣體分離、氣體儲(chǔ)存、催化、化學(xué)傳感器和污水吸附等領(lǐng)域。為了提高應(yīng)用性,需將沸石咪唑骨架制造成膜材料。由于ZIF膜材料具有出色的分子鑒別能力,因此它們多被用于工業(yè)化實(shí)際應(yīng)用中。然而,由于ZIF膜與基材的相互作用性差,晶體間的連續(xù)性較差并且膜制造成本高,很大程度上限制了此類材料的應(yīng)用。此論文的目的是基于沸石咪唑骨架膜的制備,無(wú)底物修飾和有底物修飾的有效生長(zhǎng),以及其在氣體分離和吸收污染物中的應(yīng)用。因此,第一章介紹了 ZIF膜的合成,以及不同修飾底物制備方法及在各領(lǐng)域中的應(yīng)用。第二章中介紹了采用簡(jiǎn)便有效的方法制備ZIF-8和ZIF-67兩種沸石咪唑骨架LDH包覆的PAN-PVDF混合聚合物纖維。通過(guò)原位水熱法將LDHs（ZnAl-LDH和CoAl-LDH）涂覆在含有電紡聚合物纖維的勃姆石（AlOOH）上。勃姆石（AlOOH）在PAN-PVDF納米纖維中的直接電... 

【文章來(lái)源】：北京化工大學(xué)北京市 211工程院校 教育部直屬院校

【文章頁(yè)數(shù)】：96 頁(yè)

【學(xué)位級(jí)別】：碩士

【文章目錄】：
學(xué)位論文數(shù)據(jù)集
摘要
Abstract
Abbreviations
Chapter 1 Background information
    1.1 Natural gas purification
    1.2 Hydrogen purification
    1.3 Waste water purification
    1.4 Importance of Membrane base separation
    1.5 Metal organic framework (MOF)
        1.5.1 Zeolitic imidazole framework (ZIFs)
        1.5.2 Zeolitic Imidazole framework(ZIF) into membrane materials
    1.6 Different approaches toward ZIFs membrane fabrication
        1.6.1 In situ fabrication of ZIF membrane
        1.6.2 Secondary growth crystallization of MOF membrane
        1.6.3 Mixed matrix membrane(MMM)
Chapter.2 Large-Scale High Efficiency Multilevel Structure Gas Separation Membrane
    2.1 Introduction
    2.2 Experimental
        2.2.1 Materials
        2.2.2 Preparation of Solid AlOOH
        2.2.3 Electrospining of PAN-PVDF-AIOOH
        2.2.4 Heating of PAN-PVDF-AIOOH
        2.2.5 Synthesis of CoAl-LDH-PAN-PVDF-membrane
        2.2.6 Synthesis of PAN-PVDF-CoAl-LDH-ZIF-67 membrane
        2.2.7 Synthesis of ZnAl-LDH-PAN-PVDF membrane
        2.2.8 Synthesis of ZnAl-LDH-PAN-PVDF-ZIF-8 membrane
    2.3 Instrument and characterizations
    2.4 Mechanical stability of PAN-PVDF nanofiers after heating
    2.5 SEM morphology of polymer@LDH@MOF
    2.6 FT-IR and XRD
    2.7 CoAl-LDH coating on PAN-PVDF@AlOOH nanofibers
    2.8 ZnAl-LDH coating on PAN-PVDF@AlOOH mixed polymer nanofibers
    2.9 MOF fabrication on PAN-PVDF@LDH nanofibers
        2.9.1 Effect of metal source on ZIF-67 crystal
        2.9.2 Temperature effect on ZIF-8 and ZIF-67 crystal growth on PAN-PVDF@LDH membrane
    2.10 Gas separation performance of PAN-PVDF@CoAl-ZIF-67 and PAN-PVDF@ZnAl-LDH@ZIF-8
    2.11 Conclusion
Chapter 3 Multilayer,highly continuous ZIF-8 membrane on flexible PAN-PVDF polymer nanofiberes asan active candidate for water purification
    3.1 Introduction
    3.2 Experimental parts
        3.2.1 Materials
        3.2.2 Electrospining of PAN-PVDF
        3.2.3 Heating of PAN-PVDF nanofibers
        3.2.4 Synthesis of PAN-PVDF@ ZIF-8 Exfoliated multilayer membrane
    3.3 Instruments and characterization
    3.4 Membrane Morphology
    3.5 Mechanical stability of PAN-PVDF through heat mixing
    3.6 FT-IR and XRD
    3.7 Stability of ZIF-8 membrane in water and its hydrophilic nature
    3.8 BET surface area of Exfoliated ZIF-8 membrane
    3.9 Column Base dye absorption
    3.10 UV absorption of MB, MO and Rhodamine B before and after passed through column
    3.11 Dyes removal efficiency
    3.12 Conclusion
Chapter 4 Summary of Thesis
Recommendations
Research innovations
Acknowledgements
References
Author's publications
author's professional summary
Supervisor's professional summary
附件



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