Direct Z‐Scheme Xylan‐Based Carbon Dots@TiO 2‐x Nanocomposites for Visible Light Driven Photocatalytic of Dye Degradation and Antibacterial

Abstract TiO 2 photocatalysis has gained attention as a cost‐effective way of degrading contaminants. However, it relies on UV excitation and experiences rapid carrier recombination. To address these drawbacks, novel xylan‐based carbon dots@hydrogenated TiO 2 (CDs@TiO 2‐x ) composited by direct Z‐scheme heterojunction is fabricated as a visible light‐driven photocatalytic material, which broadens the range of light absorption to visible light and suppresses the recombination of photogenerated carriers. The spindle‐shaped CDs@TiO 2‐x has C/N/O/S groups, positive charges, and oxygen vacancies on its surface, and can degrade 89% of methylene blue and 87% of methyl orange within 90 min, and 99% of rhodamine B…

• NN
  National Natural Science Foundation of China

  Award: 22208114
• CP
  China Postdoctoral Science Foundation

  Award: 2022M721195