Nanomagnetic biochar dots coated silver NPs (BCDs-Ag/MNPs): A highly efficient catalyst for reduction of organic dyes

In this study, synthesis of BCDs-Ag/MNPs has been investigated by a green and economical technique for water treatment. Leaf extract of the Pistacia atlantica plant has Afterward as a capping and reducing agent for the formation of Ag nanoparticles on the surface of magnetic biochar dots. Characterization of the synthesized nanocatalyst was confirmed by X‐ray diffraction (XRD), Fourier-transform infrared (FT-IR), scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The BCDs-Ag/MNPs has been successfully developed for effective reduction of methyl orange (MO), methyl red (MR) and methyl blue (MB) in the presence of NaBH4. The calculated kinetic data for the reduction of these dyes were appropriate to the first-order rate equation in the presence of BCDs-Ag/MNPs and NaBH4. In addition, this catalyst showed excellent magnetic separately and reusability without negligible deactivation after at least eight cycles of the reduction reaction.Graphical abstract
Source: Materials Chemistry and Physics - Category: Materials Science Source Type: research