Synthesis and Characterization of Nanosized Mg0.2Fe2.8O4/AC/TiO2 Composite for Removal Pb(II) from Water
Berliantty Warim Putri, Ahmad Taufiq*, Chusnana Insjaf Yogihati, ST. Ulfawanti Intan Subadra, Sunaryono, Nandang Mufti, Markus Diantoro, Muhammad Safwan Abd Aziz2

1Department of Physics, Faculty of Mathematics and Natural Sciences, Universitas Negeri Malang, Jl. Semarang 5, Malang 65145, Indonesia
2Laser Center, Ibnu Sina Institute for Scientific and Industrial Research, Universiti Teknologi Malaysia, Skudai 81100 Johor Bahru, Malaysia

Abstract

This study aimed to synthesize the nanosized Mg0.2Fe2.8O4/AC/TiO2 composite for removal Pb(II) from water. The crystal structure and functional group of the sample were evaluated using XRD and FTIR spectroscopy. The morphology and band gap energy of the sample were characterized by means of SEM and UV-Vis spectroscopy. Meanwhile, the absorbance performance of the nanocomposite for removal Pb(II) was evaluated using AAS characterization. The results of the data analysis in this study showed that the Mg0.2Fe2.8O4/AC/TiO2 nanocomposite was successfully synthesized using the coprecipitation method. The result of the XRD characterization presented the 2 phases, namely Fe3O4 and TiO2. The FTIR characterization results showed that the nanocomposite had a Fe-O bond at the tetrahedral and octahedral positions that were detected in the wavenumber range of 800-500 cm-1. The SEM image showed that the morphology of nanocomposite tended to agglomerate with a particle size distribution of 44.3 nm. The band gap energy resulting from the UV-Vis test analysis was 3.492 eV. Interestingly, the absorption efficiency for removal PB(II) of the Mg0.2Fe2.8O4/AC/TiO2 nanocomposite reached 99.08%-99.90%.

Keywords: Mg0.2Fe2.8O4/AC/TiO2, composite, removal Pb(II), nanosized

Topic: Biochemistry