Development of polyaniline coated titania-hematite composite with enhanced photocatalytic activity under sun-like irradiation

Date

2022-11-01

Author

Bouzıanı, Asmae

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© 2022Herein, a novel PANI@Fe2O3@TiO2 (PANI@TF) composite containing different amounts of polyaniline was synthesized by in situ polymerization of aniline monomer in the presence of TF. X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), BET surface area, Diffuse reflectance spectroscopy (DRS), X-ray photoelectron (XPS), and scanning electron microscopy (SEM-EDS) were used to study the phase structure, morphology, and optical properties of the synthesized PANI@TF composites. Moreover, for the first time, the photocatalytic property of the as-synthesized PANI@TF composites has been evaluated via the decolorization of MB under sun-like illumination. The findings confirmed that all the PANI@TF ternary composites with different PANI content showed enhanced visible-light photocatalytic activity for methylene blue (MB) dye degradation compared to pure Fe2O3@TiO2. The highest degradation efficiency for MB via 1% PANI@TF ternary catalyst reached 96% after 2 h under sun-like illumination, which was 4.3 higher than TF. Finally, a plausible photocatalytic mechanism for the improved photocatalytic activity was proposed to guide further improvement of its photocatalytic performance.

Subject Keywords

Photocatalytic reaction, Synergistic effect, PANI@a-Fe2O3@TiO2, Degradation, ONE-POT SYNTHESIS, FACILE SYNTHESIS, METHYL-ORANGE, LIGHT, DEGRADATION, WATER, PHOTODEGRADATION, FABRICATION, ADSORPTION, REMOVAL, Degradation, PANI@α-Fe2O3@TiO2, Photocatalytic reaction, Synergistic effect

URI

https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85138759896&origin=inward
https://hdl.handle.net/11511/100472

Journal

Surfaces and Interfaces

DOI

https://doi.org/10.1016/j.surfin.2022.102328

Collections

Department of Chemical Engineering, Article

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Citation Formats

A. Bouzıanı, “Development of polyaniline coated titania-hematite composite with enhanced photocatalytic activity under sun-like irradiation,” Surfaces and Interfaces, vol. 34, pp. 0–0, 2022, Accessed: 00, 2022. [Online]. Available: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85138759896&origin=inward.