https://ogma.newcastle.edu.au/vital/access/ /manager/Index en-au 5 https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:34312 Tue 26 Feb 2019 16:56:27 AEDT ]]> https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:30818 eucalyptus leaf extracts. More than eight major compounds in eucalyptus leaf extracts, which may serve as reducing and capping agents, were identified using Gas Chromatography-Mass Spectrometer (GC–MS). The obtained Fe NPs and Fe/Ni NPs were characterized using Fourier Translation Infrared Spectroscopy (FTIR), Thermogravimetric Analysis (TG), Scanning Electron Microscopy (SEM), Energy Dispersive X-ray Spectroscopy (EDS), X-ray Diffraction (XRD), and X-ray Photoelectron Spectroscopy (XPS). The results demonstrated that: (1) the presence of Fe in Fe NPs, and Fe and Ni in Fe/Ni NPs; (2) the coating organic compounds may be responsible for the capping and efficient stabilization of Fe and Fe/Ni NPs. Fe NPs and Fe/Ni NPs were then used to degrade methyl orange (MO) in aqueous solution. Only 29.2% of MO was removed from aqueous solution using Fe NPs, while 99.6% of MO was removed using Fe/Ni NPs. Furthermore the removal of MO using Fe NPs and Fe/Ni NPs followed pseudo-first-order kinetics.]]> Sat 24 Mar 2018 07:37:46 AEDT ]]> https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:41286 Mon 01 Aug 2022 11:41:28 AEST ]]>