Sustainable Scalable Mechanochemical Synthesis of CdS/Bi2S3 Nanocomposites for Efficient Hydrogen Evolution

Shalabayev, Zhandos; Abilkhan, Abylay; Khan, Natalya; Tugelbay, Saparbek; Seisembekova, Anar; Tatykayev, Batukhan; Balaz, Matej

doi:10.3390/nano14221785

Open AccessArticle

Sustainable Scalable Mechanochemical Synthesis of CdS/Bi₂S₃ Nanocomposites for Efficient Hydrogen Evolution

by

Zhandos Shalabayev

^1,2

,

Abylay Abilkhan

^1,2

,

Natalya Khan

^1,2

,

Saparbek Tugelbay

^1,2

,

Anar Seisembekova

¹

,

Batukhan Tatykayev

²

and

Matej Balaz

^3,*

¹

Department of General and Inorganic Chemistry, Al-Farabi Kazakh National University, Almaty 050040, Kazakhstan

²

National Laboratory Astana, Nazarbayev University, Astana 010000, Kazakhstan

³

Institute of Geotechnics, Slovak Academy of Sciences, 04001 Kosice, Slovakia

^*

Author to whom correspondence should be addressed.

Nanomaterials 2024, 14(22), 1785; https://doi.org/10.3390/nano14221785

Submission received: 3 September 2024 / Revised: 16 October 2024 / Accepted: 17 October 2024 / Published: 6 November 2024

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Abstract

In the present study, a green, scalable, and environmentally friendly approach was developed for the fabrication of Bi₂S₃-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 Bi₂S₃ nanorods in the CdS/Bi₂S₃ nanocomposite was confirmed and proved by XRD, Raman spectroscopy, SEM-EDS, and TEM. The synthesized CdS/Bi₂S₃ nanocomposites were evaluated for their photocatalytic hydrogen evolution capabilities. The CdS/Bi₂S₃ photocatalyst exhibited 25% higher photocatalytic activity compared to CdS, reaching a hydrogen evolution rate of 996.68 μmol h⁻¹g⁻¹ (AQE 0.87%) after 3.5 h under solar-light irradiation.

Keywords: mechanochemistry; ball milling; semiconductor; cadmium sulfide; bismuth sulfide; hydrogen evolution

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MDPI and ACS Style

Shalabayev, Z.; Abilkhan, A.; Khan, N.; Tugelbay, S.; Seisembekova, A.; Tatykayev, B.; Balaz, M. Sustainable Scalable Mechanochemical Synthesis of CdS/Bi₂S₃ Nanocomposites for Efficient Hydrogen Evolution. Nanomaterials 2024, 14, 1785. https://doi.org/10.3390/nano14221785

AMA Style

Shalabayev Z, Abilkhan A, Khan N, Tugelbay S, Seisembekova A, Tatykayev B, Balaz M. Sustainable Scalable Mechanochemical Synthesis of CdS/Bi₂S₃ Nanocomposites for Efficient Hydrogen Evolution. Nanomaterials. 2024; 14(22):1785. https://doi.org/10.3390/nano14221785

Chicago/Turabian Style

Shalabayev, Zhandos, Abylay Abilkhan, Natalya Khan, Saparbek Tugelbay, Anar Seisembekova, Batukhan Tatykayev, and Matej Balaz. 2024. "Sustainable Scalable Mechanochemical Synthesis of CdS/Bi₂S₃ Nanocomposites for Efficient Hydrogen Evolution" Nanomaterials 14, no. 22: 1785. https://doi.org/10.3390/nano14221785

APA Style

Shalabayev, Z., Abilkhan, A., Khan, N., Tugelbay, S., Seisembekova, A., Tatykayev, B., & Balaz, M. (2024). Sustainable Scalable Mechanochemical Synthesis of CdS/Bi₂S₃ Nanocomposites for Efficient Hydrogen Evolution. Nanomaterials, 14(22), 1785. https://doi.org/10.3390/nano14221785

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Sustainable Scalable Mechanochemical Synthesis of CdS/Bi₂S₃ Nanocomposites for Efficient Hydrogen Evolution

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