Hydrothermal Synthesis of Moss-like Iron Phosphate for Photocatalytic Degradation of Reactive Black, Red and Yellow Dyes

IJEP 43(11): 963-971 : Vol. 43 Issue. 11 (November 2023)

G.K. Sendil1, M. Roselin Ranjitha2, E. Soundarrajan1, R.A. Kalaivani1* and S. Raghu3*

1. Vels Institute of Science, Technology and Advanced Studies (VISTAS), Department of Chemistry, Chennai – 600 117, Tamil Nadu, India
2. Stella Maris College (Autonomous), Department of Chemistry, Chennai – 600 086, Tamil Nadu, India
3. Vels Institute of Science, Technology and Advanced Studies (VISTAS), Centre for Advanced Research and Development (CARD), Chennai – 600 117, Tamil Nadu, India


Deterioration of water resources and increased levels of water pollution have become two major factors that threaten the fundamental balance of ecosystems. Owed to their destructive impact, the concern to regulate and remediate them has amplified in the recent past. Herein we presently propose a simple hydrothermal strategy for synthesizing iron phosphate, FePO4 (FP) nanoparticles. Their ability as a photocatalyst material for photocatalytically degrading Reactive Black 5, Red 198 and Yellow 145 dyes was examined and found to be 95.74, 90.32 and 87.65%, respectively. The dependency of photocatalysis process on dye concentration and pH was explored to enlighten the possible variations that might occur during practical applications. Furthermore, the kinetic pathway in which the photocatalysis takes place was also verified to fall under pseudo-first order kinetics. Recyclability/reusability parameter was also studied to elaborate on its optimum efficiency when the photocatalyst is used repeatedly. In conclusion, the synthesized FP photocatalyst is demonstrated to act as a promising material for superior photocatalytic degradation of dyes in wastewater effluents.


Iron phosphate, Hydrothermal synthesis, Photocatalysis, Reactive Black 5, Reactive Red 198, Reactive Yellow 145


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