Silver nanoparticles loaded on activated carbon as a novels adsorbent for the competitive removal of Malachite green and Methylene blue

Abstract

In this study silver nanoparticles by hydroxyl group (AgOH-NP) were synthesized and loaded on activated carbon prepared from Rosa canina tree (AgOH-NP-AC-RC). This new adsorbent was used for the removal of Malachite green and Methylene blue from aqueous medium.The morphological properties of the novel adsorbent were investigated by using X-ray diffraction (XRD), scanning electron microscopy (SEM) and FT-IR analysis. The removal both dyes in batch mode was investigated at various operating parameters like; contact time, initial pH, initial dye concentration and amount of adsorbents. The experimental equilibrium data were analyzed by using various models and it was seen that Freundlich isotherm model fitted well with adsorbtion capacity of 105 mg.g-1for Malachite green and 81.43 mg.g-1 for Methylene blue. The adsorption kinetic data followed pseudo second-order kinetics for removal both dyes.DOI: http://dx.doi.org/10.3126/ijls.v9i2.12053 International Journal of Life Sciences 9 (2) : 2015; 75-92