Investigation of the Behavior of Nano-Photocatalyst TiO2/Sb2WO6 for the Removal of Chromium (III) from Metal Surfaces

Mofidian, Roozbeh; Hosseini Asl, Seyed Mostafa; Babaei, Ramzan; Abdi, Behnaz

doi:10.48301/jear.2025.474309.1038

Investigation of the Behavior of Nano-Photocatalyst TiO2/Sb2WO6 for the Removal of Chromium (III) from Metal Surfaces

Articles in Press

Document Type : Original Article

Authors

Roozbeh Mofidian ¹

Seyed Mostafa Hosseini Asl ²

Ramzan Babaei ³

Behnaz Abdi ⁴

¹ Department of Chemical Engineering, Technical and Vocational University (TVU), Tehran, Iran

² Department of Chemical Engineering, Ayatollah Amoli Branch, Islamic Azad University, Amol, Iran

³ Department of Mechanical Engineering, Technical and Vocational University (TVU), Tehran, Iran

⁴ Department of Organic Chemistry, Hakim Sabzevari University, Iran, Sabzevar

10.48301/jear.2025.474309.1038

Abstract

In this study, considering that we can remove chromium (III) oxides from the surface of galvanized sheets using purification technologies such as electrolysis, active nanoparticles, photocatalysts, or electrochemical oxidation processes, one of these methods involves the use of photocatalysts such as titanium dioxide (TiO2). However, the application of single-component photocatalysts like TiO2 is limited due to issues in achieving strong oxidation and reduction capabilities and a limited broad light response. Among the various strategies to enhance photocatalytic performance, constructing a heterojunction is highly recommended due to its advantages in combining the individual benefits of each component and effectively separating the light-excited electron-hole pairs. The TiO2 nanophotocatalyst, with its wide bandgap, is effective in generating electron-hole pairs for photocatalytic reactions. On the other hand, the Sb2WO6 photocatalyst, with a more suitable bandgap, enhances visible light absorption and electron-hole pair generation. Combining these two photocatalysts in a nanocomposite improves the photocatalytic efficiency, allowing chromium (III) oxides to be removed from galvanized surfaces. The Sb2WO6/TiO2 nanocomposite was characterized using techniques such as FT-IR, UV-Vis, XRD, and FESEM for morphological analysis.

Keywords

Antimony Tungstate

Chromium (III) Oxides

Photocatalytic

Titanium Dioxide

Metal Surfaces

Subjects