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| Content Provider | Springer Nature Link |
|---|---|
| Author | Xu, Junyi Yuan, Changfu Liu, Jin Han, Pengfei |
| Copyright Year | 2014 |
| Abstract | We reported a dripping solvothermal method for synthesizing metal-organic framework-5(MOF-5). It started from separately dissolving Zn(NO$_{3}$)$_{2}$ and terephthalic acid(H$_{2}$BDC) in dimethyl formamide(DMF), and then dripping one solution into the other. Results of SEM, XRD and laser particle size distribution show that regular cubic-shaped and micro-crystallite powder of MOF-5 can be obtained. The d $_{0.5}$(volume-median-diameter) values are 4.32 μm for particles prepared by dripping Zn(NO$_{3}$)$_{2}$ into H$_{2}$BDC(ZH) and 9.32 μm for those prepared by dripping H$_{2}$BDC into Zn(NO$_{3}$)$_{2}$(HZ), much smaller than 22.7 μm that of particles prepared by the traditional adding water solvothermal method(L). The standard deviations of the particle size distributions fitted by the GaussAmp model are 2.49, 4.38 and 15.4 respectively for ZH, HZ and L, further revealing narrower size distributions of particles prepared by the dripping method. In addition, the Langmuir specific surface areas are 923 m$^{2}$/g for ZH and 868 m$^{2}$/g for HZ. The TGA results present mass losses of 4.18% and 3.62% at 105 °C, 17.19% and 14.78% at 245 °C, 39.04% and 34.85% at 600 °C separately for ZH and HZ, which correspond to the removal of H$_{2}$O, DMF and the decomposition of MOF-5. This indicates that MOF-5 has a strong adsorption ability for small molecules. Besides, the mass loss of 48.39%(ZH) and 41.02%(HZ) between 400 °C and 600 °C are less than the theoretical value of 57.81% for MOF-5 decomposition to ZnO, suggesting that an impure phase with an extra amount of ZnO may exist in the cavities of MOF-5. |
| Starting Page | 356 |
| Ending Page | 361 |
| Page Count | 6 |
| File Format | |
| ISSN | 10059040 |
| Journal | Chemical Research in Chinese Universities |
| Volume Number | 30 |
| Issue Number | 3 |
| e-ISSN | 22103171 |
| Language | English |
| Publisher | Jilin University and The Editorial Department of Chemical Research in Chinese Universities |
| Publisher Date | 2014-05-15 |
| Publisher Place | Heidelberg |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Size distribution Chemistry/Food Science Analytical Chemistry Physical Chemistry Dripping solvothermal method Inorganic Chemistry Metal-organic framework-5(MOF-5) Organic Chemistry |
| Content Type | Text |
| Resource Type | Article |
| Subject | Chemistry Education |
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