Amperometric detection of phenol based on tyrosinase ZrO2 NPs biosensors / Nurul Syafiqah Tapak

Ionic liquid (IL) is an effective capping agent to reduce agglomeration and further improve the size and morphology of the synthesis metal oxide nanoparticles (MONPs). In this work, two type of IL with different anion moiety were used to synthesis zirconium oxide nanoparticles (ZrO2 NPs) involving 1-butyl-3-methylimidazolium trifluoroacetate (BmimCF3COO) and 1-butyl-3-methylimidazolium nitrate (BmimNO3). For comparison purpose, the properties, morphology, crystallinity, size, and shape of both ZrO2 NPs were analysed by Fourier-Transform Infrared (FTIR), Ultraviolet-Visible Spectroscopy (UV-VIS), Transmission Electron Microscopy (TEM), Field Emission Scanning Electron Microscopy-Energy Dispersive X-Ray (FESEM-EDX), and X-Ray Diffraction (XRD).