A g-C3N4/Bi2O2CO3 composite with high visible-light-driven photocatalytic activity for rhodamine B degradation
Source abstract
Abstract
Novel composite photocatalyst g-C3N4/Bi2O2CO3 has been synthesized by a simple mixed-calcinations method. The photocatalysts were characterized by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), and diffuse reflection spectroscopy (DRS). The g-C3N4/Bi2O2CO3 composites showed high efficiency for the degradation of Rhodamine B (RhB) under visible light. The optimum photocatalytic activity of g-C3N4/Bi2O2CO3 with molar ratio of 1:2 under visible light irradiation was almost 3.1 and 14.2 times as high as those of the pure g-C3N4 and Bi2O2CO3, respectively. The enhancement of visible light photocatalytic activity in g-C3N4/Bi2O2CO3 should be assigned to the effective separation and transfer of photogenerated charges originating from the well-matched overlapping band-structures. The supposed photocatalytic mechanism was verified by the result of photoluminescence spectroscopy (PL) and active species trapping experiments.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Advanced Photocatalysis Techniques
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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