Non-noble metal Bi deposition by utilizing Bi 2 WO 6 as the self-sacrificing template for enhancing visible light photocatalytic activity
Source abstract
Abstract
Abstract Bi metal deposited on Bi 2 WO 6 composite photocatalysts have been successfully synthesized via a simple in-situ reduction method at room temperature with using Bi 2 WO 6 as self-sacrificing template and NaBH 4 as reducing agent. The reduction extent can be easily modulated by controlling the concentration of NaBH 4 solution. X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), Fourier-transform infrared (FTIR) spectra, N 2 adsorption-desorption isotherms, scanning electron microscopy (SEM), transmission electron microscopy (TEM), high resolution TEM (HRTEM), diffuse reflection spectroscopy (DRS) and photoelectrochemical measurements were carried out to analyze the phase, morphology, optical property and photoelectrochemical property of the as-prepared samples. The photocatalytic activity is surveyed by degradation of phenol under visible light (λ > 420 nm), which showed that the BWO-0.2 photocatalyst exhibited the highest efficiency, which was over 3 times as high as pure Bi 2 WO 6 . The enhanced photocatalytic activity should be attributed to strengthened photoabsorption and charge separation efficiency derived from the surface plasmon resonance (SPR) of Bi metal.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Advanced Photocatalysis Techniques · Gas Sensing Nanomaterials and Sensors · Ga2O3 and related materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (37)
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