A TiO2NW “bridged” composite photocatalyst Bi12O17Cl2–TiO2NW / Fe2TiO5 / Fe2O3 for water treatment driven by visible light
Source abstract
Abstract
Abstract The high recombination rate of Bi12O17Cl2 carrier and the limitation of visible light absorption of TiO2 seriously hinder the application of photocatalytic water treatment pollution. In this work, we grow Fe2O3 and Fe2TiO5 uniformly in situ on TiO2–Bi12O17Cl2 (hydrothermally constructed) heterojunction nanomaterials by the ion exchange method. Thus constructing a kind of three-heterojunction composite photocatalyst. XRD, SEM, XPS and other characterization tests were performed on the product to show the sample's morphology, composition, and photoelectric properties. The prepared photocatalyst induces photoelectrons under visible light and shows excellent photodegradation mineralization properties for methylene blue. Besides, the catalyst has cycle practicability and stability. Finally, through the valence band theory and the active species capture experiment, the degradation mechanism of the heterojunction's synergistic effect and the Fenton effect is proposed. The construction of nanocomposite provides a promising photocatalytic strategy for the Fenton reaction system based on heterojunction.
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Research context
OpenAlex topics: Advanced Photocatalysis Techniques · TiO2 Photocatalysis and Solar Cells · Copper-based nanomaterials and applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (64)
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