Sustainable Textile Dyes Pollution Control with Metal Doped IronOxide Nanoparticles

Abstract

The discharge of dyes in aquatic system presents significant environmental and public health problems. This study examines the potential of gadolinium doped iron oxide nanoparticles (Gd-Fe₃O₄) as a sustainable adsorbent for dye removal from contaminated water. Gd-Fe₃O₄ nanoparticles were synthesized using a cost-effective co-precipitation method. The doping of gadolinium improved the surface properties of Fe₃O₄, making it more suitable for the adsorption removal of dyes from wastewater. The characterization of synthesized Nano particles was done using XRD, TEM techniques. The adsorption and removal efficiency of dyes on Gd-Fe₃O₄ were optimized by examining various parameters, including dye and adsorbent dosage, temperature, and pH using batch adsorption experiments. The results showed that increasing the dosage of Gd-Fe₃O₄ enhanced removal efficiency, with optimal performance observed at low pH levels. Langmuir and Freundlich adsorption isotherms were utilized to understand adsorption mechanism and removal capacity of Gd-Fe₃O₄ for the two textile dyes alizarin yellow (AY) and acid orange 10 (AO10). The findings demonstrate that Gd-Fe₃O₄ is highly effective in adsorbing dyes, making it a promising and sustainable option for mitigating dye pollution in aquatic environments.