University of Oulu

P. Varma, A. E Sudheer , A. Aravindh, D. Murali and D. Amaranatha Reddy, Dalton Trans., 2022, DOI:10.1039/D2DT03285F.

Regulating charge carrier’s transportation rate via bridging ternary heterojunctions enabling CdS nanorods solar driven hydrogen evolution rate

Saved in:
Author: Varma, Pooja1; E Sudheer, Anjana1; Aravindh Sasikala Devi, Assa2;
Organizations: 1Department of Sciences, Indian Institute of Information Technology Design and Manufacturing, Kurnool-518007, Andhra Pradesh, India
2Nano and Molecular Systems Research Unit, University of Oulu, Pentti Kaiteran katu 1, 90570 Oulu, Finland
Format: article
Version: accepted version
Access: embargoed
Persistent link:
Language: English
Published: Royal Society of Chemistry, 2022
Publish Date: 2023-11-15


Solar-driven hydrogen generation using single-semiconductor photocatalysts for hydrogen evolution seems to be challenging due to their poor solar to fuel conversion efficiency because of their fast charge carrier recombination. The ternary heterostructure constitutes an advanced approach to suppress the recombination of photogenerated charge carriers and has contributed a new platform for designing highly efficient photocatalytic system. Herein, we fabricated a ternary hetero-junction with ultrathin WS₂-SnS₂ nanosheets and CdS nanorods and the photocatalytic activity is studied. The optimized CdS/SnS₂-WS₂ (6 wt. %) nanostructures are found to be highly stable and exhibited highest hydrogen evolution rate of 232.45 mmol. g− 1.h− 1, which is almost 93 folds higher than that of the pristine CdS nanorods. Also, Density Functional Theory (DFT) calculations confirm that the favorable band alignment for charge transport and superior catalytic activity of newly fabricated ternary nanostructures makes it a potential candidate for solar driven hydrogen production.

see all

Series: Dalton transactions
ISSN: 1477-9226
ISSN-E: 1477-9234
ISSN-L: 1477-9226
Volume: In press
DOI: 10.1039/d2dt03285f
Type of Publication: A1 Journal article – refereed
Field of Science: 114 Physical sciences
Funding: The authors are grateful to the Defence Research and Development Organization (DRDO), ER&IPR, India (ERIP/ER/202110001/M01/1788) for providing the financial support.
Copyright information: © Royal Society of Chemistry.