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May 14, 2026Carbon ReportsOpen Access

Photocatalytic antimicrobial performance of nitrogen-containing carbonaceous materials with small optical band gaps under visible and infrared light

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Authors

MKMasayuki KawaguchiASAkiko SaitoSMShigeaki Morita

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Overview

Randomized trial evaluates antimicrobial activity of nitrogen-containing carbonaceous materials, indicating potential for sunlight-responsive applications.

Key Points

  • The research aimed to assess the antimicrobial performance of nitrogen-containing carbonaceous materials under visible and infrared light.
  • Nitrogen-containing carbonaceous materials (C2N) were synthesized via thermal decomposition of organic precursors.
  • Antimicrobial activity was tested by counting colony-forming units (CFU) on C2N-coated plates after light irradiation.
  • Comparative studies were conducted with titanium oxide and graphitic carbon nitride to establish photocatalytic contributions.
  • C2N materials demonstrated significant antimicrobial activity under visible and infrared light irradiation.
  • FTIR analysis indicated small optical band gaps of 0.55 eV and 0.47 eV, enabling low-energy light activation.
  • The antimicrobial effect is primarily attributed to photocatalytic processes induced by light exposure.

Cite This Study

Kawaguchi et al. (2026) studied this question.

synapsesocial.com/papers/6a05659da550a87e60a1dfe7https://doi.org/10.7209/carbon.050301
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