Nanoparticles Zero Valent Iron (NZVI) Synthesis and application of H2O2/Fe0 and H2O2 in the Treatment of Dye Solution Containing Acid Red 18 from aqueous environments

Abstract

Background: Organic dyes, with a complex structure, often toxic, carcinogenic, mutagenic, non-biodegradation and stable in the environment are and if without treatment enter the environment can endanger the environment and human health. The aim of this study was to nanoparticles zero valent iron synthesis and evaluate the performance of H2O2 and H2O2/Fe0 for the removal of dye Acid Red 18 from aqueous environments. Materials and Methods: This study was conducted at the laboratory scale. Nanoparticles were synthesized by reduction of ferric chloride using sodium borohydride and then removal efficiency of Acid Red 18 from a synthetic solution by H2O2 and H2O2/Fe0 was investigated. As well as effect of solution pH, dye concentration, concentration of nano zero valent iron, H2O2 and time contact in decolorization efficiency was investigated. Results: Results show that in the pH=3, contact time of 80 minutes, dye concentration of 75 mg/L and Concentration of nano zero valent iron, 2 g/L and H2O2, 200Mmol, about 90% day removal was observed. Conclusions: According to the results of experiments, the use to be of H2O2/Fe0 the efficiency in dye removal of Acid Red 18