The particle sizeand morphology of hydrothermally synthesized ZIF-8 crystals can be finely tuned;with the size ranging from 90 nm to 4 渭m and the shape from truncated cubic torhombic dodecahedron.doi:http://hdl.handle.net/10754/223451Lestari, Gabriella...
zeoliteszif-8waspreparedbysolvothermalmethodwithDMFassolvent,zincnitratehexahydrateaszincsourceand2-methylxyleneasorganicligand.Bychangingthereactionvesselandfeedingsequence,themorphologyofzif-8wascompared,andthebestpreparationschemeofzif-8wasfound.Inthispaper,itispredictedthatthebestreactionconditionistouseglasswareas...
A fundamentalunderstanding of ZIF-8 structural evolution could facilitate the preparation of functional metal-organic frame-work phases with controlled crystal size and morphology.Key words: metal-organic frameworks; zeolitic imidazolate framework-8(ZIF-8); crystal structure; evolution process收稿日期: ...
To examine the morphology of ZIF-8 nanoparticles a scanning electron microscope (SEM) (device model: SEM FEI Quanta 200) was utilized. The nanoparticles were coated with gold under vacuum and analyzed using SEM. Fourier transform infrared spectrometry was conducted using a JASCO FT/IR-4600 device...
high yield ZIF-8 was facilely prepared using electrochemical depositionmethod,in which the influence of conductive salt (DTAB)concentrations on the morphology and theadsorption performance toward tetracycline were studied. It was revealed that when the molar ratio of2-methylimidazole and conductive salt ...
The growth and morphology of ZIF-8 primarily depend on the solubility, polarity, and viscosity of the solvents used. Studies have identified three key solvents water, methanol, and DMF as critical factors in the synthesis process. The choice of solvent affects the crystallization behaviour ...
The adsorption and photocatalytic properties of the calcined samples were tested through the removal of methylene blue. The results showed that the structure and morphology of ZIF-8 were maintained when the calcination temperature was less than 500℃. When the temperature reached 600℃，ZIF-8 began...
The effects of reaction temperature and reaction time on the morphology of the crystal were investigated and the samples were characterized in detail. The results show that the porous hydrangea-like ZIF-8 crystal can be obtained at different temperatures from 110 to 140掳C. At the same ...
Characterization of ZIF-8 Fig. 1 illustrates the characterizations of the synthesized ZIF-8 nanocrystals in terms of SEM, TEM, XRD, and TGA. The morphology and diameter distributions (analyzed by ImageJ) of the ZIF-8 are shown in Fig. 1(a) and (b). The as-obtained crystals show uniform...
Information about crystal morphology and dispersity can be obtained from the AR-SHS curves as well, by fitting to appropriate models. To illustrate the shape selectivity of the method we compared fits of the AR-SHS patterns obtained for the largest particles (15 min) to models assuming a sph...