Sustainable Scalable Mechanochemical Synthesis of CdS/Bi2S3 Nanocomposites for Efficient Hydrogen Evolution
In the present study, a green, scalable, and environmentally friendly approach was developed for the fabrication of Bi<sub>2</sub>S<sub>3</sub>-decorated CdS nanoparticles with an efficient hydrogen generation ability from the water. As a sulfur source, thiourea was used. The process was completed in two stages: mechanical activation and thermal annealing. The presence of spherical CdS nanoparticles and Bi<sub>2</sub>S<sub>3</sub> nanorods in the CdS/Bi<sub>2</sub>S<sub>3</sub> nanocomposite was confirmed and proved by XRD, Raman spectroscopy, SEM-EDS, and TEM. The synthesized CdS/Bi<sub>2</sub>S<sub>3</sub> nanocomposites were evaluated for their photocatalytic hydrogen evolution capabilities. The CdS/Bi<sub>2</sub>S<sub>3</sub> photocatalyst exhibited 25% higher photocatalytic activity compared to CdS, reaching a hydrogen evolution rate of 996.68 μmol h<sup>-1</sup>g<sup>-1</sup> (AQE 0.87%) after 3.5 h under solar-light irradiation.
Authors
- Natalya Khan (ORCID: https://orcid.org/0000-0003-1794-0018)
- Batukhan Tatykayev (ORCID: https://orcid.org/0000-0001-5071-1968)
- Anar Seisembekova (ORCID: https://orcid.org/0000-0002-7791-3145)
- Matěj Baláž (ORCID: https://orcid.org/0000-0001-6563-7588)
- Zhandos Shalabayev (ORCID: https://orcid.org/0000-0003-3465-8241)
- Saparbek Tugelbay (ORCID: https://orcid.org/0000-0002-8781-9320)
- Abylay Abilkhan (ORCID: https://orcid.org/0000-0003-1227-5004)
Institutions
- Al-Farabi Kazakh National University (KZ)
- Slovak Academy of Sciences (SK)
- Institute of Geotechnics of the Slovak Academy of Sciences (SK)
- Nazarbayev University (KZ)
Publication Details
- Journal
- Nanomaterials
- Published
- 2024-11-06
- DOI
- https://doi.org/10.3390/nano14221785
- Citations
- 7
- Primary Topic
- Advanced Photocatalysis Techniques
- Type
- article
- Field-Weighted Citation Impact
- 0.72
Funders
- Ministry of Education and Science of the Republic of Kazakhstan
- Vedecká Grantová Agentúra MŠVVaŠ SR a SAV