Sujan Kumar Das Author

Research Article Open Access

Synthesis of Metal-Oxide (Al2O3) Nanoparticles by using Autoclave for the Efficient Absorption of Heavy Metal Ions

Author(s):

Rabeya Akter Rabu, Nasrin Jewena*, Sujan Kumar Das, Jahirul Islam Khandaker, and Farid Ahmed

Metal-oxide (Al2O3) nanoparticles were synthesized by hydrothermal method within a self-designed stainless-steel autoclave, sealed, and heated at 140 ï‚° C for 48 hours. The X-ray Diffraction (XRD) analysis confirmed characteristic Al2O3 crystal peaks at diffraction angles near 25.8 ï‚°, 35.1 ï‚°, 37 ï‚°, and 41 ï‚° (2θ). XRD analysis also measured the average crystallite size of 30 nm for the as-synthesized γ- Al2O3 nanoparticles. The absorption bands of Al2O3 stretching were confirmed at 515 cm-1 and 736 cm-1 through Fourier Transform Infrared Spectroscopy (FT-IR) analysis. The UV-Vis spectroscopy identified a strong absorption peak at 267 nm for (Al2O3) nanoparticles. The bandgap was calculated at 5.34 eV from the Tauc plot that was much lower than tha... view more»

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