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Nofrijon Sofyan, Advanced Materials Research Center, Faculty of Engineering, Universitas Indonesia, Depok 16424, Indonesia AND Department of Metallurgical and Materials Engineering, Faculty of Engineering, Universitas Indonesia, Depok 16424, IndonesiaFollow
Andriayani, Department of Chemistry, Faculty of Mathematics and Natural Sciences, University of Sumatera Utara, Medan 20155, IndonesiaFollow
Yetria Rilda, Department of Chemistry, Faculty of Mathematics and Natural Sciences, Andalas University, Padang, 25163, IndonesiaFollow
Fiona Angellinnov, Department of Metallurgical and Materials Engineering, Faculty of Engineering, Universitas Indonesia, Depok 16424, IndonesiaFollow
Mouna M'rad, Department Physique, Université Paris-Saclay, Bâtiment Bréguet, 91190, FranceFollow
Muhammad, Department of Metallurgical and Materials Engineering, Faculty of Engineering, Universitas Indonesia, Depok 16424, IndonesiaFollow
Aga Ridhova, Research Center for Metallurgy, National Research and Innovation Agency, Tangerang Selatan, Banten 15314, IndonesiaFollow
Akhmad Herman Yuwono, Advanced Materials Research Center, Faculty of Engineering, Universitas Indonesia, Depok 16424, Indonesia AND Department of Metallurgical and Materials Engineering, Faculty of Engineering, Universitas Indonesia, Depok 16424, IndonesiaFollow
Donanta Dhaneswara, Advanced Materials Research Center, Faculty of Engineering, Universitas Indonesia, Depok 16424, Indonesia AND Department of Metallurgical and Materials Engineering, Faculty of Engineering, Universitas Indonesia, Depok 16424, IndonesiaFollow

Abstract

This work aims to explore the characteristics of TiO2 NPs green-synthesized via an environmentally friendly method using oil palm (Elaeis guineensis) leaf extract as a green medium and capping agent by utilizing titanium tetra isopropoxide (TTIP) as precursor. The oil palm leaves were extracted with different solvent concentration variations. The natural extract was characterized using liquid chromatography-mass spectroscopy (LC-MS) and infrared spectroscopy for active chemical contents and functional groups. The obtained TiO2 NPs were also characterized using infrared spectroscopy (FTIR) for the functional groups, ultraviolet spectroscopy (UV-DRS) for the optical characteristics, and X-ray diffraction (XRD) for the phase formation and crystallographic properties. More sophisticated equipment of field emission scanning electron microscopy equipped with energy dispersive X-ray spectroscopy (FESEM/EDX) and Raman spectroscopy were employed to reveal the characteristics of the obtained TiO2 NPs. The results from X-ray diffraction showed that the obtained TiO2 NPs are in pure anatase crystal structure. There is also a trend that the bandgap energy of TiO2 NPs reduces with the use of oil palm leaves extract as a green medium. It is confirmed that the green medium affects the optical characteristics of the synthesized TiO2 NPs by reducing the bandgap energy from 3.2 eV for commercial and the one synthesized using ethanol only to 3.12 eV by using the green medium of oil palm leaves extract. These findings will provide insight for more novel, environmentally friendly nanomaterials synthesis methods.

Keywords

Green synthesis, Nanoparticles, Natural plant extract, Oil palm, Titanium dioxide

Article Type

Special Issue Article

First Page

71

Last Page

83

Creative Commons License

Creative Commons Attribution 4.0 International License
This work is licensed under a Creative Commons Attribution 4.0 International License.

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