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<p>Enhancing photocatalytic selectivity is essential for the effective and efficient utilization of catalysts. In this study, a molecularly imprinted polymer, MIP-PANI/GO/BiOCl/Bi<sub>2</sub>S<sub>3</sub>, was successfully synthesized through in-situ synthesis using pyridine as a template molecule. The MIP-PANI/GO/BiOCl/Bi<sub>2</sub>S<sub>3</sub> demonstrated enhanced charge transfer and efficient separation of photogenerated carriers. The denitrification rate of pyridine can reach 90% after 150&#xa0;min, which is 1.5 times or 1.55 times greater than that of NMIP-PANI/GO/BiOCl/Bi<sub>2</sub>S<sub>3</sub> or GO/BiOCl/Bi<sub>2</sub>S<sub>3</sub>, respectively. In various mixed systems, the selectivity coefficients for pyridine using MIP-PANI/GO/BiOCl/Bi<sub>2</sub>S<sub>3</sub> consistently exceeded 1.6, suggesting its good molecular recognition. The excellent molecular recognition endowed MIP-PANI/GO/BiOCl/Bi<sub>2</sub>S<sub>3</sub> with preferential degradation performance, leading to effective mineralization of pyridine. Most importantly, the preferential fuel denitrification mechanism based on molecular recognition was proposed. This study presents a promising strategy for designing Bi-based molecular imprinting photocatalysts aimed at efficiently removing low-concentration and highly toxic target pollutants from mixed samples.</p>

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Fabrication of Surface Molecularly Imprinted Photocatalyst PANI/GO/BiOCl/Bi2S3 Based on Facile In-Situ Synthesis for the Selective Fuel Denitrification

  • 期刊论文

  • 发表日期：

    2025年5月9日

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  • Zuchao Meng,
  • Mengfan Cui,
  • Jiahua Qi,
  • Yu Hao,
  • Jinlin Qian,
  • Min Yang

摘要

Enhancing photocatalytic selectivity is essential for the effective and efficient utilization of catalysts. In this study, a molecularly imprinted polymer, MIP-PANI/GO/BiOCl/Bi2S3, was successfully synthesized through in-situ synthesis using pyridine as a template molecule. The MIP-PANI/GO/BiOCl/Bi2S3 demonstrated enhanced charge transfer and efficient separation of photogenerated carriers. The denitrification rate of pyridine can reach 90% after 150 min, which is 1.5 times or 1.55 times greater than that of NMIP-PANI/GO/BiOCl/Bi2S3 or GO/BiOCl/Bi2S3, respectively. In various mixed systems, the selectivity coefficients for pyridine using MIP-PANI/GO/BiOCl/Bi2S3 consistently exceeded 1.6, suggesting its good molecular recognition. The excellent molecular recognition endowed MIP-PANI/GO/BiOCl/Bi2S3 with preferential degradation performance, leading to effective mineralization of pyridine. Most importantly, the preferential fuel denitrification mechanism based on molecular recognition was proposed. This study presents a promising strategy for designing Bi-based molecular imprinting photocatalysts aimed at efficiently removing low-concentration and highly toxic target pollutants from mixed samples.