研究目的
To determine the effect of silver nanoparticles (AgNP) towards graphene oxide-silver nanoparticles (GO-AgNP) formation using liquid sonication exfoliation (LSE) method.
研究成果
GO and GO-AgNP materials have been synthesized and characterized. The UV-Vis spectroscopy shows the best result for the GO-AgNP mixture is at the concentration of 4 mM with two absorbance peaks at 265 nm and 416.5 nm. The SEM images for the GO sample shows thin sheets of materials with diameters of around 62.4 nm. SEM images for the GO-AgNP sample fails to show the presence of GO and silver nanoparticles in accordance with EDX results indicating that the oxygen element has the highest percentage. However, the XRD data for the GO-AgNP sample shows the forming of reduced GO. The FTIR results show the functional groups in the GO and GO-AgNP samples, which consist of O-H bonds at wave numbers of 3441.3 cm-1 and 3433.75 cm-1, respectively, and C=C bonds at wave numbers of 1634.71 cm-1 and 1638.88 cm-1, respectively.
研究不足
The SEM-EDX of the sample fails to detect the presence of GO-AgNP material, possibly due to poor sample preparation. The XRD pattern of the GO-AgNP sample suggests an amorphous or semi-crystal structure, indicating potential issues in crystal structure analysis.