Synthesis, Characterization and Sustainability by Utilisation of Psidium Guajava-Iron Nano particles (PG-FeNPs) for the removal of Methylene blue Dye

Abstract

Water is the only liquid that sustains all life and acts as catalyst to initiate their metabolisms. It is more essential to life than all other nutrients put together. Life becomes impossible without water. In the past few years, one of the most important environmental crisis has been the contamination of water resources. Using Psidium guajava leaves ass adsorbents, the current work aims to extract methylene blue from an aqueous solution. The variables that were examined includes temperature, average particle size of adsorbents, initial dye concentration, contact time, solution pH, adsorbent dosage. The adsorption of methylene blue onto Psidium guajava leaves adsorbentswas studied using a variety of isotherm models, inclusing Langmuir, Freundlich, tempkin, and Redlich-Peterson (R-P) as well as kinetic studies of Pseudo(first & second) order[23]. Thermodynamic parameters were also estimated for the extraction of Methylene blue onto both the adsorbents. The analysis of adsorbents was depicted by using Field Emission Scanning Electron Microscopy(FE-SEM) and Fourier Transform Infrared Spectroscopy (FTIR) for their surface morphology and surface functional groups, respectively[20].