Email this article Synthesis and Characterization of CdS Photocatalyst with Different Morphologies: Visible Light Activated Dyes Degradation Study
- Authors: Hussain W.1, Malik H.1, Bahadur A.1, Hussain R.A.1, Shoaib M.1, Iqbal S.2, Hussain H.3, Green I.R.4, Badshah A.1, Li H.5
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Affiliations:
- Department of Chemistry, Quaid-i-Azam University
- International Research Center for Renewable Energy, State Key Laboratory of Multiphase Flow in Power Engineering, Xi’an Jiaotong University
- University of Nizwa Chair of Oman’s Medicinal Plants and Marine Natural Products
- Department of Chemistry and Polymer Sciences, University of Stellenbosch Private Bag X1
- Key Laboratory of Cluster Sciences of Ministry of Education Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, School of Chemistry and Chemical Engineering, Beijing Institute of Technology
- Issue: Vol 59, No 6 (2018)
- Pages: 710-719
- Section: Article
- URL: https://journal-vniispk.ru/0023-1584/article/view/164116
- DOI: https://doi.org/10.1134/S0023158418060058
- ID: 164116
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Abstract
CdS nanoparticles (CdS NPs) and CdS nanoslabs (CdS NSs) were synthesized from the single source (SS) and multi-source (MS) precursors, respectively. Our target was to observe any change in morphology by altering the synthetic route. CdS NPs with spherical morphology (0.2–0.5 µm in diameter) were obtained by using the SS precursor route via the formation of a Cd-complex. CdS NSs (100–200 nm in length, 50–100 nm wide and 25–50 nm in thickness) were obtained by using the MS precursors, by direct addition of the ligand to metal salt. Both NPs and NSs were used for the degradation of four different cationic organic dyes viz., malachite green (MG), methylene blue (MB), rhodamine B (RhB) and methyl violet (MV) under visible light. CdS NPs synthesized from SS precursor exhibited higher photocatalytic activity than CdS NSs fabricated via MS precursor due to spherical morphologies (small size of particles increases the surface area) and higher band gap. On the other hand, CdS NSs show sheet or cube like morphologies. The kinetic study proved that the rate constants for the MG, MB, MV, and RhB degradation by CdS NPs (1.65 × 10–2, 1.25 × 10–2, 1.2 × 10–2, and 1.24 × 10–2 min–1, respectively) are higher than those for CdS NSs (1.45 × 10–2, 1.13 × 10–2, 1.05 × 10–2, 1.14 × 10–2 min–1, respectively). The precursors were characterized by 1H and 13C nuclear magnetic resonance. Phase pattern and composition of CdS were confirmed by X-ray diffraction and energy dispersive X-ray spectroscopy. Morphology and size were confirmed by transmission electron microscopy and scanning electron microscopy.
About the authors
W. Hussain
Department of Chemistry, Quaid-i-Azam University
Author for correspondence.
Email: wajidhussain5741@gmail.com
Pakistan, Islamabad, 45320
H. Malik
Department of Chemistry, Quaid-i-Azam University
Email: aminbadshah@qau.edu.com
Pakistan, Islamabad, 45320
A. Bahadur
Department of Chemistry, Quaid-i-Azam University
Email: aminbadshah@qau.edu.com
Pakistan, Islamabad, 45320
R. A. Hussain
Department of Chemistry, Quaid-i-Azam University
Email: aminbadshah@qau.edu.com
Pakistan, Islamabad, 45320
M. Shoaib
Department of Chemistry, Quaid-i-Azam University
Email: aminbadshah@qau.edu.com
Pakistan, Islamabad, 45320
Sh. Iqbal
International Research Center for Renewable Energy, State Key Laboratory of Multiphase Flow in Power Engineering,Xi’an Jiaotong University
Email: aminbadshah@qau.edu.com
China, Shaanxi, 710049
H. Hussain
University of Nizwa Chair of Oman’s Medicinal Plants and Marine Natural Products
Email: aminbadshah@qau.edu.com
Oman, Birkat Al Mauz, P/O Box 33
I. R. Green
Department of Chemistry and Polymer Sciences, University of Stellenbosch Private Bag X1
Email: aminbadshah@qau.edu.com
South Africa, MatielandStellenbosch, 7600
A. Badshah
Department of Chemistry, Quaid-i-Azam University
Author for correspondence.
Email: aminbadshah@qau.edu.com
Pakistan, Islamabad, 45320
H. Li
Key Laboratory of Cluster Sciences of Ministry of Education Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, School of Chemistry and Chemical Engineering, Beijing Institute of Technology
Email: aminbadshah@qau.edu.com
China, Beijing, 102488
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