IJEP 44(14): 1254-1259 : Vol. 44 Issue. 14 (Conference 2024)
Noman Ahmed Siddiqui and Priya Saxena*
Parul University, Department of Civil Engineering, Parul Institute of Technology, Vadodara – 391 760, Gujarat, India
Abstract
This study presents the green synthesis and application of nanoscale zero-valent iron (nZVI) supported on activated carbon (AC) for the removal of reactive dyes from aqueous solutions. The synthesis process involved the preparation of nZVI through the extraction of Rosa indica petals followed by loading onto activated carbon. Fourier transform infrared spectroscopy (FTIR) analysis revealed the presence of functional groups indicative of the synthesized nZVI sample. The efficiency of the synthesized AC-nZVI composite in decolourizing Methylene Blue (MB) dye was evaluated across various concentrations ranging from 5-50 ppm. The results demonstrated a significant enhancement in decolourization efficiency with AC-nZVI compared to nZVI alone. At concentrations of 5 ppm, AC-nZVI achieved a degradation efficiency of 97.87% compared to 79.46% for nZVI alone. This trend persisted across all concentrations tested, with AC-nZVI consistently outperforming nZVI. The superior performance of AC-nZVI can be attributed to the synergistic effects between the activated carbon support and the nano zero-valent iron particles, offering promising prospects for efficient and sustainable water remediation technologies.
Keywords
Activated carbon, Nanoscale zero-valent iron (nZVI), Methylene Blue, Fourier transform infrared spectroscopy (FTIR), Scanning electron microscopy (SEM)
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