Bismuth (Bi)-related catalysts are the promising visible-light catalysts, such as Bi2WO6, Bi2O3, BiVO6, etc.. As shown in our experiments, a very strong absorbtion of RhB or MO organics and great visible-light photocatalytic activity can be detected. The BET is small. Herein, whether the absorbtion is attributed to the chemical way to a more larger degree? Whether the Bismuth (Bi) makes it work and how to detect? and how can I messure this feature in a better way?
In Bismuth based materials, specially oxides and halides, the internal static electric fields are perpendicular to each layer in the material. The inherent electric fields are
believed to facilitate the separation of photogenerated electrons and holes. Also, the adsorption capability can be attributed to its porous nature.
more details in the paper below:
Synthesis and facet-dependent photoreactivity of BiOCl single-crystalline nanosheets.
Jiang J1, Zhao K, Xiao X, Zhang L
J Am Chem Soc. 2012 Mar 14;134(10):4473-6.
doi: 10.1021/ja210484t
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