Enhanced photocatalytic activity of sulfur-doped graphene quantum dots decorated with TiO 2 nanocomposites
Source abstract
Abstract
Abstract Sulfur-doped graphene quantum dots (S-GQDs) decorated with high-quantum-yield titanium dioxide (TiO 2 ) nanocomposite are synthesized by a simple hydrothermal method. Photoluminescence characterization shows that S-GQDs exhibit stronger absorption peaks at ultraviolet (UV) region than GQDs. Photocatalytic activity of the obtained S-GQD/TiO 2 nanocomposite reaches 70% in 8 min; this activity is significantly enhanced compared with those of GQDs/TiO 2 and pure TiO 2 . Improved UV light absorption and effective transfer of photogenerated electrons can be attributed to integration of S-GQDs with TiO 2 in a cladding manner. The present work provides a new approach for development of attractive GQD-based nanocomposites with controllable structures and photocatalytic performance.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Carbon and Quantum Dots Applications · Nanocluster Synthesis and Applications · Advanced Photocatalysis Techniques
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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