Study the influence of Solvothermal Conditions Changing On UiO-66

Metal Organic framework UiO-66 considered to have significant physicochemical characteristics with great potential for various applications. Nevertheless obtaining high porous prosperities by optimization the synthesizing method remained challenge. In this study, a solvothermal method has been used to synthesis the UiO-66 with different synthesis time (12, 24, 48, 72 and 96 hours) and different heated (80, 100, 120, and 140 °C). By changing the temperature up to 140 and synthesis time 24 h the main peak intensity increased. The XRD and SEM analysis showed that by increasing the synthesis temperature the degree of crystallinity increased and cubic shape crystals was obtained. The XRD characterization analysis for UiO-66 showed the white powdered obtained at 12 h reaction time and 140 °C synthesis temperatures was the highest XRD intensity at 7.3°, 8.4°, 25.6° and 30.6° 2Theta. When changing the synthesis time for 48 h or longer, XRD diffractograms revealed phase change and that the intensity at 7.3° 2Theta was lower than the intensity at 8.5° 2Theta, with new peaks appeared. SEM analysis confirmed the phase change after synthesis time 48h, by changing the crystals square clusters shape to the needle-like shape.