Preparation and photocatalytic properties of visible light driven AgAgBr/attapulgite nanocomposite
Source abstract
Abstract
Abstract An efficient visible light photocatalyst of Ag AgBr/attapulgite nanocomposite was prepared via the reaction between Ag + and Br - ions in the presence of attapulgite and then reducing partial Ag + ions to Ag 0 species via the light-induced chemical reduction. Characterization methods, such as X-ray diffraction (XRD), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS) and UV–visible diffused reflectance spectroscopy (UV–vis DRS) were employed to study the phase structure, chemical state and optical properties of the nanocomposite. The Ag AgBr/attapulgite nanocomposite exhibited an efficient photocatalytic activity for the degradation of Rhodamine B (RhB) aqueous solution under visible light radiation (λ > 400 nm). In addition, the photoactive radical species involved in the degradation reaction have been investigated by using the HO‐trapping photoluminescence (PL) spectra and quenching experiments. A possible photodegradation mechanism of RhB dye by the Ag AgBr/attapulgite nanocomposite was postulated.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Advanced Photocatalysis Techniques · TiO2 Photocatalysis and Solar Cells · Luminescence Properties of Advanced Materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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