Synthesis of Self-Cleaning Photocatalytic Coating Based on Titania-Silica-Mn Nanostructured Composite

Document Type : Research Article

Authors

1 Department of Chemistry, Takestan Branch, Islamic Azad University, Takestan, I.R. IRAN

2 Department of Materials Engineering, Takestan Branch, Islamic Azad University, Takestan, I.R. IRAN

Abstract

Using self-cleaning coatings in the glass industry can significantly improve the cleaning of glasses. Titania, with its photocatalytic properties, is one of the options that has attracted the attention of researchers to synthesize self-healing photocatalytic coatings based on their composites. Therefore, the present study attempted to study the conditions for the synthesis of titanium-silica-manganese composites. For this purpose, stable titanium-silica-manganese solids were prepared by polymer method and coated with Sedalim glass using the dipping method. Then the heat treatment was applied to the glass and powdered from the dried tuber. In order to study the properties of synthetic samples, Fourier Transform InfraRed (FT-IR), X-Ray Diffraction (XRD), X-ray Diffraction Spectroscopy (EDS), and UV-Visible Intrusive Reflection (DRS) spectroscopy Became The photocatalytic activity of synthetic composite was also determined based on the degree of degradation of methyl esterification as a contaminant in its vicinity in the presence of ultraviolet waves. The solution concentrations were determined using a UV-vis spectrophotometer. Self-absorption properties of the coating were also measured by measuring the contact angle (CA) of the water on its surface. In order to investigate and observe the microstructure of the synthetic sample, a Field Emission Scanning Electron Microscope (FESEM) was used. In this study, using a sol-gel method, Titanium-silica-manganese composite coating with an anatomic phase with a crystalline diameter of 8.9 nm, a 4-degree wettability angle under visible light, and the potential for degradation of methylene polysaccharide with a yield of 83%, it was synthesized as a nanostructured self-enveloping photocatalytic coating.

Keywords

Main Subjects

References

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Nashrieh Shimi va Mohandesi Shimi Iran
Volume 39, Issue 3 - Serial Number 97
September 2020
Pages 15-25

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