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- W4386385544 endingPage "132332" @default.
- W4386385544 startingPage "132332" @default.
- W4386385544 abstract "Organic-inorganic hetero-junction based catalysts with efficient charge separation ability for superior photo-catalytic activity have been developed by chemical methods. Titanium dioxide (TiO2) and polypyrrole (PPy) as single photo-catalyst have been investigated and compared with TiO2/PPy hetero-junction composite. TiO2/PPy composite has enhanced efficiency for the degradation of toxic organic dye methylene blue (MB) through the charge transfer route. Broad curves in UV-Vis spectra arise due to polaron and bipolaron in PPy and TiO2/PPy composite. The de-localized polaron (Landé g factor value of 1.99) was further detected by electron spin resonance (ESR). The effect of polaron-bipolaron on the structure of as-synthesized PPy and TiO2/PPy composite has been explored by Raman spectroscopy. The oxidation state of different species and electronic structures below the Fermi level has been investigated by x-ray photoelectron spectroscopy (XPS) and ultraviolet photoelectron spectroscopy (UPS), which provides molecular orbitals insight and charge transfer state across the hetero-junction TiO2/PPy composite. Collectively, UPS and UV-Vis spectroscopy gives the energy positions (valence/ HOMO band and conduction band/LUMO) for TiO2 and PPy having straggled type band alignment which confirms the hetero junction in the composite." @default.
- W4386385544 created "2023-09-02" @default.
- W4386385544 creator A5080153342 @default.
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- W4386385544 date "2023-11-01" @default.
- W4386385544 modified "2023-09-27" @default.
- W4386385544 title "Evidence of charge transfer across the organic-inorganic hetero-junction based visible light driven photo-catalyst" @default.
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- W4386385544 doi "https://doi.org/10.1016/j.colsurfa.2023.132332" @default.
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