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Sari H. Dewi
Center for Science and Technology of Advanced Materials-BATAN Kawasan Puspiptek, Serpong, Tangerang 15314, Indonesia
Materials Science & Nanotechnology

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PHOTO CATALITIC ACTIVITY OF Fe3O4/SiO2/TiO2 COMPOSITE BY MECHANO CHEMICALPREPARATION Didin S. Winatapura; Sari H. Dewi; Siti Wardiati; Adel Fisli
Jurnal Sains Materi Indonesia Vol 16, No 2: JANUARI 2015
Publisher : Center for Science & Technology of Advanced Materials - National Nuclear Energy Agency

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (414.826 KB) | DOI: 10.17146/jsmi.2015.16.2.4210

Abstract

PHOTO CATALITIC ACTIVITY OF Fe3O4/SiO2/TiO2 COMPOSITE BY MECHANO CHEMICALPREPARATION. Asimplemechanochemical activation was used to prepare Fe3O4/ SiO2/TiO2 composite. Fe3O4, and SiO2 nanoparticles powder were prepared by co-precipitation method respectively, while TiO2was synthesized by sol-gel method.All of the samples weremixed into vial and milled by wet milling process. The all prepared sampel were characterized by various equipments i.e. X-ray diffractometry (XRD), transmission electron microscope (TEM) and vibrating sample magnetometer (VSM), Fourier transform infrared (FTIR) and UV-Vis Spectrometer. The result shows that Fe3O4/SiO2/TiO2 composite consisted of anatase TiO2 and Fe3O4 phases. The superparamagnetic behavior of Fe3O4 nanoparticle, Fe3O4/ SiO2, and Fe3O4/SiO2/TiO2 composites exhibit the saturationmagnetic (Ms) of 89.43. and 13emu/g, respectively. The particle size of Fe3O4/SiO2/TiO2 composite was distributed in spherical shape and about 100 nm in diameter. Photocatalytic test showed that Fe3O4/SiO2/TiO2 composite can elimininate the methylene blue (MB) dye solution higher than that pure TiO2 commercial product (TiO2M) catalyst. The Fe3O4/SiO2/TiO2 composites can be easily taken back from treated water by using magnetic bar. Keywords: Mechanochemical, Fe3O4/SiO2/TiO2 composite, methylene blue dye, photocatalytic
Co-Authors Adel Fisli Didin S. Winatapura Siti Wardiati