Synthesis and Characterization of CuO-Ag2S Composite: A Novel Photocatalyst Efficient Degradation of Eosin B and Methylene Blue Dyes
DOI:
https://doi.org/10.70749/ijbr.v3i10.2591Keywords:
Photo catalytic degradation, Eosin B dye, Methylene Blue, CuO-Ag2S, hydrothermal, photocatalystAbstract
Presently, the contamination of water by synthetic dyes such as Eosin B and Methylene Blue (MB) is a matter of concern. Being toxic and non-biodegradable, these dyes cause harm to nature, human health and aquatic life. Amongst the numerous remediation methods, photo catalytic degradation has emerged as an effective approach for the degradation of these toxic pollutants into harmless byproducts like H2O and CO2. The present study investigates the use of CuO-Ag2S as a photocatalyst for the breakdown of Eosin B and MB in the presence of light. CuO-Ag2S composite was synthesized by hydrothermal method and characterized for its crystal structure, surface morphology, elemental analysis, functional groups and optical features using XRD, SEM, EDX, FTIR and UV-Vis spectroscopy respectively. The degradation of Eosin B and MB was carried out under different conditions in order to figure out its efficacy. This study was conducted on 60ppm Eosin B solution having dosage of 0.015g, where a maximum degradation of 97% was attained after 60min of irradiation time at pH 5. On the other hand, the optimized conditions for MB were 20ppm, 0.015g dose, and pH 11 at which the highest degradation was attain i.e. 68%. The degradation kinetics were analyzed, revealing a pseudo second order kinetics for both processes. The study highlights the effective degradation of Eosin B and MB dyes using CuO-Ag2S, providing valuable insights into the impact of various operational parameters and reaction kinetics. The findings contribute to the development of efficient and sustainable dye removal techniques, paving the way for future advancements in waste water treatment.
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