Back to Search
Start Over
Engineering S-scheme W18O49/ZnIn2S4 heterojunction by CoxP nanoclusters for enhanced charge transfer capability and solar hydrogen evolution.
- Source :
- Nano Research; Sep2024, Vol. 17 Issue 9, p8095-8103, 9p
- Publication Year :
- 2024
-
Abstract
- Enhancement of the light-absorption response and utilization of the photogenerated carriers represent a robust strategy for the design of high-performance photocatalyst. In this work, grafting Co<subscript>x</subscript>P nanoclusters onto S-scheme heterojunction of W<subscript>18</subscript>O<subscript>49</subscript>/ZnIn<subscript>2</subscript>S<subscript>4</subscript> (WO/ZIS-Co<subscript>x</subscript>P) with strong response to the ultraviolet–visible–near infrared ray (UV–vis–NIR) region has been achieved, which possesses efficient electron-transfer-channel, and boosts charge-separation and transport kinetics. The as-prepared WO/ZIS-Co<subscript>x</subscript>P yields an impressive solar-driven hydrogen production rate of 45 mmol·g<superscript>−1</superscript>·h<superscript>−1</superscript>. The increased photocatalytic performance is attributed to the synergistic effect of the composite catalyst: (1) The local surface plasmon resonance-induced "hot electron" injection of W<subscript>18</subscript>O<subscript>49</subscript> significantly increases the electron density; (2) the engineered S-scheme directional electron transfer promotes charge separation and enhances the reducing capability of photoexcited electrons; and (3) Co<subscript>x</subscript>P as electron-trap site for accelerating surface proton reduction reaction. This work provides a platform to impart nonprecious co-catalyst for engineering S-scheme heterojunction, serving a class of efficient solar-driven photocatalyst towards hydrogen production. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 19980124
- Volume :
- 17
- Issue :
- 9
- Database :
- Complementary Index
- Journal :
- Nano Research
- Publication Type :
- Academic Journal
- Accession number :
- 179142690
- Full Text :
- https://doi.org/10.1007/s12274-024-6773-4