TY - JOUR
T1 - Development of polyaniline coated titania-hematite composite with enhanced photocatalytic activity under sun-like irradiation
AU - Bouziani, Asmae
AU - Yahya, Mohamed
AU - Naciri, Yassine
AU - Hsini, Abdelghani
AU - Khan, Moonis Ali
AU - Sillanpää, Mika
AU - Celik, Gokhan
N1 - Publisher Copyright:
© 2022
PY - 2022/11
Y1 - 2022/11
N2 - Herein, 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.
AB - Herein, 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.
KW - Degradation
KW - PANI@α-FeO@TiO
KW - Photocatalytic reaction
KW - Synergistic effect
UR - http://www.scopus.com/inward/record.url?scp=85138759896&partnerID=8YFLogxK
U2 - 10.1016/j.surfin.2022.102328
DO - 10.1016/j.surfin.2022.102328
M3 - Article
AN - SCOPUS:85138759896
SN - 2468-0230
VL - 34
JO - Surfaces and Interfaces
JF - Surfaces and Interfaces
M1 - 102328
ER -