Abstract
Pulsed laser ablation method had been successfully performed to produce high-purity iron oxide nanoparticles at low laser energy. A high-purity iron plate was dipped into 10 ml of deionized water. Then, a low-energy Nd:YAG laser beam, of 30 mJ, was bombarding the iron plate surface followed by ablating the plate to produce iron oxide nanoparticles (IONPs) solution. Laser pulse repetition rate was arranged to 10 Hz. Characterization of the IONPs was performed by employing SEM-EDX, imageJ software, and UV-Vis spectroscopy. The characterization results revealed that most of the IONPs are small size spherical particles. The mean diameter of the IONPs synthesized in this study is 5.3 nm. Single surface plasmon resonance (SPR) peak revealed that the IONPs are mostly in the spherical shape. The small number of SPR peak proved that IONPs synthesized in this experiments are small-sized nanoparticles. The IONPs produced in this study was high-purity iron oxide nanoparticles as proved by EDX characterization results.
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