The DOI matches its Crossref record; 48 of the 48 references it cites were found in a registry or an index.
Ultrathin 2D/2D WO3/g-C3N4 step-scheme H2-production photocatalyst
Abstract
Abstract The appropriate interfacial contact of heterojunction photocatalysts plays a critical role in transfer/separation of interfacial charge carriers. Design of two-dimensional (2D)/2D surface-to-surface heterojunction is an effective method for improving photocatalytic activity since greater contact area can enhance interfacial charge transfer rate. Herein, ultrathin 2D/2D WO3/g-C3N4 step-like composite heterojunction photocatalysts were fabricated by electrostatic self-assembly of ultrathin tungsten trioxide (WO3) and graphitic carbon nitride (g-C3N4) nanosheets. The ultrathin WO3 and g-C3N4 nanosheets were obtained by electrostatic-assisted ultrasonic exfoliation of bulk WO3 and a two-step thermal-etching of bulk g-C3N4, respectively. The thickness of ultrathin WO3 and g-C3N4 nanosheets are 2.5–3.5 nm, which is equivalent to 5–8 atomic or molecular layer thickness. This ultrathin layered heterojunction structure can enhance surface photocatalytic rate because photogenerated electrons and holes at heterogeneous interface more easily transfer to surface of photocatalysts. Therefore, the obtained ultrathin 2D/2D WO3/g-C3N4 step-scheme (S-scheme) heterojunction photocatalysts exhibited better H2-production activity than pure g-C3N4 and WO3 with the same loading amount of Pt as cocatalyst. The mechanism and driving force of charge transfer and separation in S-scheme heterojunction photocatalysts are investigated and discussed. This investigation will provide new insight about designing and constructing novel S-scheme heterojunction photocatalysts.
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Unique S-scheme heterojunctions in self-assembled TiO2/CsPbBr3 hybrids for CO2 photoreduction
Xu, F., Meng, K., Cheng, B., Wang, S., Xu, J., & Yu, J. (2020) · Nature Communications · doi:10.1038/s41467-020-18350-7 · Cited by 1,456
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Metadata
- Authors
- Fu, J., Xu, Q., Low, J., Jiang, C., & Yu, J.
- Venue
- Applied Catalysis B: Environmental
- Publisher
- Elsevier BV
- Published
- 2019-04
- Volume
- 243
- Pages
- 556-565
- ISSN
- 0926-3373 (ISSN-L)
- OpenAlex
- W2900199409
- Cited by
- 2,767
- References
- 48
- FWCI
- 53.05
- Type
- journal article
- Language
- en
- Open access
- closed
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- Fu, J., Xu, Q., Low, J., Jiang, C., & Yu, J. (2019). Ultrathin 2D/2D WO3/g-C3N4 step-scheme H2-production photocatalyst. Applied Catalysis B: Environmental. https://doi.org/10.1016/j.apcatb.2018.11.011
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