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- W4313199724 abstract "Abstract In this paper, we successfully synthesized heterojunction manganese titanate/titanate nanoparticles (MnTiO 3 –TiO 2 NPs)-decorated carbon nanofibers (CNFs) employing the electrospinning process. The morphology, crystallinity, and chemical composition of the MnTiO 3 /TiO 2 -decorated CNFs is characterized via SEM, FESEM, STEM, TEM EDX, and XRD techniques. The synthesized nanocomposite exhibits good performance for photodegradation of methylene blue (MB) dye and hydrolysis of ammonia–borane complex for hydrogen releasing experiment in a batch reactor under visible light. A mathematical model was developed to predict the photocatalytic activity of the produced nanocomposite with various parameters. The operational parameters include the effect of the initial concentration, catalyst dosage, light intensity, and reaction temperature, which are studied to validate the mathematical model. The reaction rate constant of MB photodegradation is found to be 0.0153 min −1 for an initial MB concentration of 5 mg·L −1 with a catalytic dosage of 200 mg·L −1 at a reaction temperature of 25°C under a light intensity of 25 W·m −2 . Similarly, the H 2 generation employing TiO 2 @CNFs and MnTiO 3 /TiO 2 @CNFs under visible light irradiation is observed to be 0.31 mol and 2.95 mol, respectively, corresponding to an exposure of 10 min. We also demonstrated that the yield of hydrogen employing MnTiO 3 /TiO 2 @CNFs under visible light increases to 2.95 mol compared with 1.51 mol in darkness. Finally, comparisons were made between the experimental and model-predicted values of the reaction rate constant and final concentrations. Theoretical and experimental data of photocatalytic activity are found to be in good agreement for MnTiO 3 /TiO 2 @CNFs." @default.
- W4313199724 created "2023-01-06" @default.
- W4313199724 creator A5049897308 @default.
- W4313199724 date "2022-08-01" @default.
- W4313199724 modified "2023-09-26" @default.
- W4313199724 title "Fabrication of heterojunction MnTiO<sub>3</sub>–TiO<sub>2</sub>-decorated carbon nanofibers via electrospinning as an effective multifunctional photocatalyst" @default.
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- W4313199724 doi "https://doi.org/10.2478/msp-2022-0028" @default.
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