Enhanced CeO2 oxygen defects decorated with AgInS2 quantum dots form an S-scheme heterojunction for efficient photocatalytic selective oxidation of xylose
Article
Li, Aohua, Ma, Jiliang, Hong, Min and Sun, Runcang. 2024. "Enhanced CeO2 oxygen defects decorated with AgInS2 quantum dots form an S-scheme heterojunction for efficient photocatalytic selective oxidation of xylose." Applied Catalysis B: Environment and Energy. 348. https://doi.org/10.1016/j.apcatb.2024.123834
Article Title | Enhanced CeO2 oxygen defects decorated with AgInS2 quantum dots form an S-scheme heterojunction for efficient photocatalytic selective oxidation of xylose |
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ERA Journal ID | 1406 |
Article Category | Article |
Authors | Li, Aohua, Ma, Jiliang, Hong, Min and Sun, Runcang |
Journal Title | Applied Catalysis B: Environment and Energy |
Journal Citation | 348 |
Article Number | 123834 |
Number of Pages | 10 |
Year | 2024 |
Publisher | Elsevier |
Place of Publication | Netherlands |
ISSN | 0926-3373 |
1873-3883 | |
Digital Object Identifier (DOI) | https://doi.org/10.1016/j.apcatb.2024.123834 |
Web Address (URL) | https://www.sciencedirect.com/science/article/abs/pii/S0926337324001462 |
Abstract | S-scheme heterojunctions have become an emerging type of effective photocatalysts to convert biomass. However, there are few reports on the synergistic S-type heterojunction and oxygen vacancy enhanced photocatalytic biomass conversion. Here, an AgInS2@CeO2-x S-scheme heterojunction photocatalyst with abundant oxygen vacancies was developed through a simple thermal and mild annealing process, allowing for the simultaneous production of xylonic acid and CO. Under visible light, the xylonic acid yield and CO evolution rate reached 60.0% and 3689.9 μmol g−1 h−1, respectively, through the decomposition of xylose. It was found that the S-scheme staggered band structure could improve sunlight utilization, increase the reduction power of photogenerated electrons, and enhance the separation and transfer of photogenerated charge carriers. Furthermore, oxygen vacancies on the surface of CeO2 for AgInS2@CeO2-x heterojunction can suppress the recombination of generated electrons and holes. This study offers a promising approach for designing artificial photosynthetic systems to promote photocatalytic biomass conversion. |
Keywords | CO; S-scheme heterojunction ; Oxygen vacancies ; Xylonic acid ; Photocatalytic biorefinery |
Contains Sensitive Content | Does not contain sensitive content |
ANZSRC Field of Research 2020 | 401605. Functional materials |
Public Notes | The accessible file is the accepted version of the paper. Please refer to the URL for the published version. |
Byline Affiliations | Dalian Polytechnic University, China |
Centre for Future Materials |
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