SYNTHESIS AND CHARACTERIZATION OF GNPs/Ti-Fe BINARY OXIDE COMPOSITE FROM ILMINITE OF CENTRAL VIET NAM USING HYDROTHERMAL METHOD

Truong Ngoc Tuan

Abstract


In the present study, GNPs/Ti-Fe binary oxide composites were synthesized from ilmenite of Central Viet Nam using hydrothermal method. The effect of amount of Fe on the morphology, structure and photocatalytic performance of prepared materials were characterized by scanning electron microscopy, transmission electron microscopy, X-ray diffraction, UV–VIS Diffuse Reflectance spectrophotometer, Energy-dispersive X-ray spectroscopy and BET techniques. The results showed that Ti-Fe binary oxide nanoparticles distribute on GNP sheets, the BET surface area of as-prepared material was 328.6 m²/g and the material exhibited efficient photocatalytic performance in visible light (energy band gap was 1.9 eV).

 


Keywords


graphene nanoplatelets (GNPs), GNP/Ti-Fe binary oxide composite, photocatalytic material, ilmenite.

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DOI: https://doi.org/10.15625/2525-2518/56/2A/12621

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Published by Vietnam Academy of Science and Technology