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<p>Bi/Bi<sub>2</sub>Fe<sub>4</sub>O<sub>9</sub> nanocomposites consisting of Bi<sub>2</sub>Fe<sub>4</sub>O<sub>9</sub> nanosheets decorated with Bi nanodots were synthesized by a hydrothermal method. The formation of Bi nanodots on the Bi<sub>2</sub>Fe<sub>4</sub>O<sub>9</sub> nanosheet surfaces was attributed to the reducibility of 2-methoxyethanol in the precursor solution. Comparative photocatalytic evaluation reveals that the Bi/Bi<sub>2</sub>Fe<sub>4</sub>O<sub>9</sub> nanocomposites significantly enhance the degradation efficiency (99.0%) of bisphenol A compared with Bi<sub>2</sub>Fe<sub>4</sub>O<sub>9</sub> nanosheets (64.2%) under 120 min simulated solar irradiation. This remarkable enhancement can be attributed to the established Bi/Bi<sub>2</sub>Fe<sub>4</sub>O<sub>9</sub> heterojunction structure, which effectively facilitates the separation of photogenerated electron-hole pairs and accelerates interfacial charge transfer between the metallic Bi nanodots and semiconductor Bi<sub>2</sub>Fe<sub>4</sub>O<sub>9</sub> nanosheets. The synergistic effects arising from this unique architecture ultimately lead to superior photocatalytic performance.</p>

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High-efficiency Photocatalytic Performance of Bi/Bi2Fe4O9 Nanocomposites Synthesized by Hydrothermal Method for Degradation of Bisphenol A

  • 期刊论文

  • 发表日期：

    2026年4月11日

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  • Junjie Wang,
  • Yijie Li,
  • Xinyi Li,
  • Dongyun Guo

摘要

Bi/Bi2Fe4O9 nanocomposites consisting of Bi2Fe4O9 nanosheets decorated with Bi nanodots were synthesized by a hydrothermal method. The formation of Bi nanodots on the Bi2Fe4O9 nanosheet surfaces was attributed to the reducibility of 2-methoxyethanol in the precursor solution. Comparative photocatalytic evaluation reveals that the Bi/Bi2Fe4O9 nanocomposites significantly enhance the degradation efficiency (99.0%) of bisphenol A compared with Bi2Fe4O9 nanosheets (64.2%) under 120 min simulated solar irradiation. This remarkable enhancement can be attributed to the established Bi/Bi2Fe4O9 heterojunction structure, which effectively facilitates the separation of photogenerated electron-hole pairs and accelerates interfacial charge transfer between the metallic Bi nanodots and semiconductor Bi2Fe4O9 nanosheets. The synergistic effects arising from this unique architecture ultimately lead to superior photocatalytic performance.