Enhanced photocatalytic degradation of Rhodamine B using polyaniline-coated XTiO3(X = Co, Ni) nanocomposites

Scientific Reports, Journal Year: 2025, Volume and Issue: 15(1)

Published: Jan. 28, 2025

Abstract In this study, novel polyaniline-coated perovskite nanocomposites (PANI@CoTiO 3 and PANI@NiTiO ) were synthesized using an in situ oxidative polymerization method evaluated for the photocatalytic degradation of Rhodamine B (RhB) a persistent organic pollutant. The displayed significantly enhanced efficiency compared to pure perovskites. 1%wt achieved impressive 94% RhB under visible light after 180 min, while 1wt.% PANI@CoTiO3 reached 87% UV same duration. X-ray diffraction (XRD) confirmed that crystalline structures CoTiO NiTiO remained intact post-polymerization. At time, Fourier transform infrared spectroscopy (FTIR) verified successful deposition PANI through characteristic functional group vibrations. Diffuse reflectance (DRS) revealed reduced band gaps 2.63 eV 2.46 PANI@CoTiO , enhancing absorption across ranges. Scanning electron microscopy (SEM) energy dispersive (EDS) analysis demonstrated uniform distribution PANI, ensuring consistent surface activity efficient charge transfer. test pseudo-first-order mechanism. study elucidates mechanism intermediate identification via HPLC-MS analysis, highlighting N-de-ethylation, aromatic ring cleavage eventual mineralization into CO 2 H O as critical pathways. Furthermore, 1wt.%PANI@NiTiO nanocomposite excellent stability recyclability, maintaining its over four consecutive cycles with minimal change. These findings highlight potential PANI@XTiO sustainable wastewater treatment, addressing diverse environmental challenges by tailoring photocatalysts specific sources.

Language: Английский

Insight into the photothermal boosted ofloxacin removal by magnetic CuFe2O4/pyrite waste catalyst: Mechanism, degradation pathways, and toxicity evaluation

Separation and Purification Technology, Journal Year: 2024, Volume and Issue: 354, P. 128878 - 128878

Published: July 19, 2024

Language: Английский

Enhanced Visible-Light Photocatalytic CO2 Reduction via MOF-Derived CoTiO3/2D BiOBr Interface Engineering

Journal of Alloys and Compounds, Journal Year: 2025, Volume and Issue: 1017, P. 179063 - 179063

Published: Feb. 1, 2025

Language: Английский