Journal of Nanoscience and Nanotechnology, vol.17, no.7, pp.4799-4804, 2017 (SCI-Expanded)
Adresses herein, monodisperse Pt nanoadsorbents have been reproducibly prepared by microwave assisted method and consist of activated carbon and platinum called as Mw-Pt NPs@AC nanocomposites. Mw-Pt NPs@AC nanocomposites were found to be extraordinary adsorption capacity for methylene blue (MB) removal from aqueous solutions. Their characterization was performed by the help of X-ray diffraction (XRD), transmission electron microscopy (TEM), high resolution transmission electron microscopy (HR-TEM) and X-ray photoelectron spectroscopy (XPS). The results revealed that the Mw-Pt NPs@AC nanocomposites are highly efficient adsorbents for MB removal from aqueous solutions and provide remarkable adsorption capacity (195.69 mg/g). The MB adsorption equilibrium was attained in ∼75 min. In addition, reusability tests represented that Mw-Pt NPs@AC nanocomposites are quite promising for MB removal keeping 91.9% of its initial efficiency after 5 cycles of adsorption-desorption.