Preparation of Fe₃O₄/TiO₂ and Fe₃O₄/TiO₂/CuO Nanohybrids for Photoreduction of Cr(VI)

Abstract:

Fe₃O₄/TiO₂ and CuO incorporated in Fe₃O₄/TiO₂ nanohybrid were successfully synthesized using sol-gel method. X-ray diffraction, Field emission scanning electron microscope, Fourier-transform infrared absorption, diffuse reflectance UV-visible spectrophotometer and Vibrating sample magnetometer were employed to investigate the structural, morphology and composition, optical and magnetic properties of the as prepared sample. The photocatalytic activity of as-prepared nanohybrids photocatalyst was tested by the photocatalytic reduction of Cr(VI) in aqueous solution under UV and visible light irradiation. Compared with Fe₃O₄/TiO₂, Fe₃O₄/TiO₂/CuO had better photocatalytic reduction efficiency. Furthermore, the possible primary species involved in the photocatalytic reduction of Cr(VI) was studied by examination the photocatalytic activity in the presence of scavengers.

• Periodical: Advanced Materials Research (Volume 1112)
• Pages: 221-227
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1112.221
• Online since: July 2015
• Authors: Sarah A. Arifin, Shofianina Jalaludin, Nadia Febiana Djaja, Rosari Saleh*
• Keywords: Cr (VI), Fe₃O₄, Nanohybrid, Photocatalytic

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