Open AccessLa2O3 nanoparticles formation using Nothopanax scutellarium leaf extract in two-phase system and photocatalytic activity under UV light irradiation
Author(s) -
Khusnan Mustofa,
Yoki Yulizar,
Asep Saefumillah,
Dewangga Oky Bagus Apriandanu
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/902/1/012018
Subject(s) - malachite green , nuclear chemistry , photocatalysis , scanning electron microscope , fourier transform infrared spectroscopy , transmission electron microscopy , materials science , nanoparticle , irradiation , dynamic light scattering , analytical chemistry (journal) , chemistry , chromatography , nanotechnology , chemical engineering , organic chemistry , catalysis , physics , adsorption , nuclear physics , engineering , composite material
La 2 O 3 nanoparticles (NPs) have been formed using Nothopanax scutellarium leaf extract (NSE) and lanthanum precursor in two-phases system (n-hexane/water) with high-speed stirring method. Alkaloids as a secondary metabolite compound in NSE were used as a hydrolyzing agent and the other substances, namely saponin and tannin as a capping agent. All characterizations in this study were undertaken by Fourier transform infrared (FT-IR), UV-Vis DRS, X-Ray diffraction (XRD), scanning electron microscopy energy-dispersive X-Ray spectroscopy (SEM-EDX), transmission electron microscopy (TEM) and UV-Vis spectrophotometer. UV-Vis DRS characterization showed that La 2 O 3 NPs has a bandgap value of 5.59 eV. The particle size of La 2 O 3 NPs was around 84.3 nm confirmed by TEM. UV-Vis spectrophotometer was utilized to analyze the photocatalytic activity of La 2 O 3 NPs for the degradation of malachite green (MG) as a modelling of dye. The degradation percentage of MG using La 2 O 3 NPs was 87.32 % for 120 min under UV light irradiation.