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Factors affecting photocatalytic degradation of methyl red by MoS$_2$ nanostructures prepared by hydrothermal technique
ANJALI RANI KULVINDER SINGH ARUN SINGH PATEL PRIANKA SHARMA
Volume 46 Published: 4 May 2023 Article ID 0094
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Keywords
Photocatalysis ;hydrothermal method ;pH ;concentration of photocatalyst ;pollutant concentration. -
Abstract
In this study, we have synthesized MoS$_2$ nanostructures (NSs) through a simple and facile hydrothermal method and studied various factors affecting the degradation of organic azo dye methyl red (MR) under the illumination of visible light. The as-synthesized photo-catalyst has been characterized by powder X-ray diffraction, Raman spectroscopy and transmission electron microscopy to confirm its structure and surface morphology. The results reveal that the prepared MoS$_2$ NSs have 2H crystal phase. The peak frequency difference of ${\sim}$25 cm$^{-1}$ exhibits preparation of 5–6 layers of MoS$_2$ NSs. Ultraviolet–visible spectroscopy has been utilized to study the change in percentage degradation of the dye with variation in dosages of photocatalyst, dye concentration and variation in pH of the dye. MoS$_2$ NSs show the best adsorption of 80.35% at low pH of 4.24 with 14 mg of catalyst dosage and 50 ppm of dye concentration in 6 h of irradiation time.
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Author Affiliations
ANJALI RANI1 KULVINDER SINGH2 ARUN SINGH PATEL3 PRIANKA SHARMA1
- Department of Physics, School of Basic and Applied Sciences, Maharaja Agrasen University, Solan 174103, India
- Department of Chemistry, DAV College, Chandigarh 160011, India
- Department of Physics, Hindu College, New Delhi 110007, India
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Dates
- Published
- 4 May 2023
- Manuscript received
- 31 July 2022
- Accepted
- 28 December 2022
- Final version published online
- 4 May 2023
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Bulletin of Materials Science
Volume 46, 2023
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