Citation: Guanyang Zeng, Xingqiang Liu, Liangqiao Wu, Zijie Meng, Debin Zeng, Changlin Yu. Novel visible-light-driven I- doped Bi2O2CO3 nano-sheets fabricated via an ion exchange route for dye and phenol removal[J]. Chinese Journal of Structural Chemistry, ;2024, 43(12): 100462. doi: 10.1016/j.cjsc.2024.100462 shu

Novel visible-light-driven I- doped Bi2O2CO3 nano-sheets fabricated via an ion exchange route for dye and phenol removal

Here, we report a novel visible-light-driven I- doped Bi2O2CO3 nano-sheet photocatalyst synthesized via a facile ion exchange route at room temperature. This obtained Bi2O2CO3 nano-sheet with I- doping shows several advantages. The specific surface area of I0.875-Bi2O2CO3 is 2.16 times higher than that of Bi2O2CO3, providing more catalytic sites for the degradation reactions. Moreover, a 3.2 times photocurrent enhancement is observed in I0.875-Bi2O2CO3 compared with Bi2O2CO3, producing more photogenerated electron-hole pairs for degradation. The synergistic effect between texture property and photoelectric effect boosts the removal of organic pollutants. Under visible light illumination, I0.875-Bi2O2CO3 displays superior photocatalytic performance for the degradation of methyl orange (MO) and phenol. Notably, a phenol degradation rate, 88%, is achieved by I0.875-Bi2O2CO3 with illuminating for 60 min, which is about 29 times higher than that of pristine Bi2O2CO3. This finding may provide an opportunity to develop a promising I- doped catalyst for organic pollutants removal.
- Bi2O2CO3 nano-sheet,
- I- doping,
- Ion exchange,
- Band gap energy,
- Photocatalytic performance
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