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<p>Enantioselective catalytic oxidation of <span>d</span>-glucose has been extensively applied in food, pharmaceutical, and chemical industries. In this work, a nitrogen-rich graphitic carbon nitride (<i>g-</i>C<sub>3</sub>N<sub>5</sub>) was synthesized through the pyrolysis of 3-amino-1,2,4-triazole. This material exhibited a reduced band gap, enhanced electrical conductivity, and superior photocatalytic performance compared to graphitic C<sub>3</sub>N<sub>4</sub> (<i>g-</i>C<sub>3</sub>N<sub>4</sub>), facilitating more efficient photocatalytic oxidation of glucose with higher yield. The surface of <i>g-</i>C<sub>3</sub>N<sub>5</sub> was subsequently capped with a molecularly imprinted polymer (MIP) layer by employing <span>d</span>-glucose as the template molecule, and 4-vinylphenylboronic acid as the functional monomer. The resulting <i>g-</i>C<sub>3</sub>N<sub>5</sub>-MIPs demonstrated the ability to selectively photocatalyze the oxidation of <span>d</span>-glucose, producing <span>d</span>-glu acid and H<sub>2</sub>O<sub>2</sub>. Notably, the relative selectivity coefficient for <span>d</span>-glucose over <span>l</span>-glucose increased by a factor of 8.79 compared to the non-imprinted <i>g-</i>C<sub>3</sub>N<sub>5</sub>. This work presents an effective approach for synthesizing advanced g-C<sub>3</sub>N<sub>5</sub>-MIP-based photocatalysts, and highlights their potential for highly enantioselective aerobic oxidation of <span>d</span>-glucose.</p> Graphical Abstract <p></p>

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Molecularly Imprinted-g-C3N5 for Photocatalytic Oxidation of d-glucose

  • 期刊论文

  • 发表日期：

    2026年3月7日

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  • Zhanqiu Tang,
  • Yuqing Fu,
  • Xinyi Feng,
  • Zhenglong Wu,
  • Weidong Qin

摘要

Enantioselective catalytic oxidation of d-glucose has been extensively applied in food, pharmaceutical, and chemical industries. In this work, a nitrogen-rich graphitic carbon nitride (g-C3N5) was synthesized through the pyrolysis of 3-amino-1,2,4-triazole. This material exhibited a reduced band gap, enhanced electrical conductivity, and superior photocatalytic performance compared to graphitic C3N4 (g-C3N4), facilitating more efficient photocatalytic oxidation of glucose with higher yield. The surface of g-C3N5 was subsequently capped with a molecularly imprinted polymer (MIP) layer by employing d-glucose as the template molecule, and 4-vinylphenylboronic acid as the functional monomer. The resulting g-C3N5-MIPs demonstrated the ability to selectively photocatalyze the oxidation of d-glucose, producing d-glu acid and H2O2. Notably, the relative selectivity coefficient for d-glucose over l-glucose increased by a factor of 8.79 compared to the non-imprinted g-C3N5. This work presents an effective approach for synthesizing advanced g-C3N5-MIP-based photocatalysts, and highlights their potential for highly enantioselective aerobic oxidation of d-glucose.

Graphical Abstract