在本工作中,通过后合成修饰法,首次合成了一种新型的双发射荧光金属有机框架纳米探针(MIL?101(Al)?NH2@5?FAM),并作为一种高效的比率荧光传感器应用于EA检测,它具有简单、快速、专属性强等优点。在单一的激发波长下,MIL?101(Al)?NH2@5?FAM传感器的2个发射峰为427 nm和511 nm,它们分别来自MIL-101(Al)-NH2...
The prepared MIL-101 was characterized by various techniques such as XRD, SEM, BET, TGA. Adsorption and release of the prepared met-al-organic framework MIL-101 for gaseous iodine was carried out at 75 ℃. The absorbed material was dissolved in ab-solute ethyl alcohol for iodine release. ...
[0006] MIL-101具有良好的骨架稳定性,客体分子撤离不影响骨架形态,热重分析(TGA) 实验中发现MIL-101晶体的稳定温度可达300 °C以上,当暴露在空气中,能稳定存在几个 月,并且能稳定存在于室温下多种有机溶剂以及热蒸气中。[0007] 虽然MOFs在诸多方面的应用都得到了一些研究,但因为它的巨大的比表面积而 使研究者...
18.图5为mil-101(al)的tga图。可以看出在250℃左右出现第一次明显失重(图5中a 段),可归因于孔道中的配体等客体分子挥发;加温到350℃时,出现了第二次明显失重(图5中b段),由于mil-101(cr)晶种占产物总质量较mil-101(al)差距明显,推测此处应为mil-101(cr)分解所致,而此处的温度也与之前报道的mil-101(cr...
The prepared MIL-101 was characterized by various techniques such as XRD, SEM, BET, TGA. Adsorption and release of the prepared met-al-organic framework MIL-101 for gaseous iodine was carried out at 75℃. The absorbed material was dissolved in ab-solute ethyl alcohol for iodine release....
The prepared MIL-101 was characterized by various techniques such as XRD, SEM, BET, TGA. Adsorption and release of the prepared met-al-organic framework MIL-101 for gaseous iodine was carried out at 75℃. The absorbed material was dissolved in ab-solute ethyl alcohol for iodine release....
本工作中,研究发现通过加入Al3+可以抑制MIL-101Fe在水中的分解,起到间接修饰增强其水中热稳定性的作用。实验室过程中,加入AlCl3·6H2O就可以提高MIL-101Fe在水中的稳定性,结构既不会分解也不会被破坏;而加入CoCl2·6H2O和NiCl2·6H2O均不会起到增强MIL-101Fe在水中的稳定性的作用,因此推断Al3+的存在是...
金属-有机骨架(Metal-Organic Frameworks,MOFs)材料因其具有丰富多样的结构,孔径可调节性和高比表面积,在分子分离,气体储存分离,多相催化,质子的传导,制备磁性材料等方面显示出了潜在的应用价值.不同于利用延长配体来增大介孔孔径以得到介孔金属-有机骨架材料(mesoMOFs),本文采用全新的方法,以纳米尺度金属-有机骨架(...
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The isosteric heat of CO2 adsorption on MIL-101(Cr)-NH2 was estimated equal to − 31 kJ mol-1.MIL-101(Cr)-NH2 was synthesized and characterized by the BET, XRD, FESEM, TGA, and DTA methods. The BET surface area of the synthesized MOF was achieved equal to 1768 m2 g-1. The ...