(6)自然降温冷却到室温,溶液中形成沉淀为粗制mg-mof-74样品,将其静置约4h,过滤; [0042] (7)在粗制mg-mof-74样品中加入与溶液c中的母液等体积的新鲜甲醇溶液,充分搅拌后,静置12h,再加入新鲜甲醇,搅拌,静置,如此重复,三天内共计替换6次,以除去材料孔道内溶剂客体分子n,n-二甲基甲酰胺、乙醇和水; [0043] ...
本发明提供了一种采用水热反应法制备缺陷型Mg‑MOF‑74的方法,属于MOF材料制备技术领域。本发明采用MgCl2·6H2O作为金属源结合MOF‑74制成一种缺陷型Mg‑MOF‑74材料。本发明所制备的缺陷型Mg‑MOF‑74材料能够依托于结构缺陷,进而增加吸附位点,使本发明的材料对CO2的吸附性能提升15%左右。 (19)国家...
Combining XPS, SEM and N 2 adsorption-desorption characterization analysis, it was attributed to the effect of the more stable unsaturated metal sites Ni into the Mg-MOF-74 on the pore structure and the synergistic interaction between the two metals. Density Functional Theory (DFT) simulations ...
Porous structureThe elimination and safe treatment of U(VI) from radioactive wastewater has attracted widespread attention with the development of the nuclear power industry. In this work, a MgO/carbon adsorbent was successfully prepared by one-step Mg-MOF-74 pyrolyzation and used for U(VI) ...
以硝酸锌、硝酸锰和2-甲基咪唑为原料,采用多步计时电位法和静置法,制备了氧化锌-二氧化锰-金属框架有机化合物(ZnO-MnO2-MOF)复合材料阵列电极。通过扫描电子显微镜(SEM)、透射电子显微镜(TEM)、X光电子能谱(XPS)和X射线衍射(XRD)等技术手段对比分析了该复合材料的结构和形貌,并采用循环伏安法、恒电流充放电、电化...
以2-氨基对苯二甲酸为有机配体,无水四氯化锆为金属前驱体,DMF为溶剂,通过溶剂热法合成具有氨基取代的金属-有机骨架材料NH_2-UIO-66(Zr)。通过XPS和SEM表征其构成和微观形貌,SEM图显示为不规则的颗粒状物质,孔径在2~9μm。进一步在NH_2-UIO-66(Zr)上负载了Pd纳米颗粒形成Pd@NH_2-UIO-66(Zr)材料。
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Xu et al. [99] prepared jackfruit-like derived carbon materials composed of a certain number of carbon nanorods using Mn-MOF as the precursor. The rich pore structure of carbon nanorods can support Se, while the gap between the nanorods can effectively alleviate the volume expansion that occurs...
The phase structure and morphology of the samples were characterized by powder X–ray diffractometer (XRD, Shimadzu XRD–7000) with Cu Kαradiation and a power of 40 kV × 30 mA, X–ray pho- toelectron spectra (XPS) were recorded on a Thermo escalab 250Xi ...
ND. ND. atomic ratio from the compound (Mg2+ : Fe3+) x 5.5 : 1 0.16 4.1 : 1 0.22 2.8 : 1 0.26 Table 2. Mg2+, Fe3+, Cl− and Na+ contents in the Mg–Fe–Cl HTln as evaluated by XPS. *where x = (Fe3+)/(Mg2++Fe3+). Scientific Reports | 6:...