Synthesis of ternary nanocomposite of carbon nanotubes/silver ferrite/polyaniline for oxidative elimination of azo dyes

Abstract

Multicomponent nanocomposites are synthesized to produce novel nanocomposites with distinctive features. Here, a ternary nanocomposite comprising carbon nanotubes (CNTs), silver ferrite nanoparticles (AgFeO2 NPs), and polyaniline (PANI) was synthesized through two main processes. Hydrothermal synthesis of AgFeO2 NPs on CNTs that have undergone oxidation to produce a binary CNTs/AgFeO2 nanocomposite followed by aniline polymerization on the surface of the binary nanocomposite. The composition of CNTs/AgFeO2/PANI nanocomposite was confirmed by several technologies, including XRD, SEM, FTIR, TEM, and EDX. VSM also revealed its magnetic behavior. The triple nanocomposite displayed notable degradation rates of numerous azo dyes with H2O2, including orange G (OG), trypan blue (TB), and acid blue 92 (AB92). The influence of multiple variables (nanocomposite dosage, H2O2 and AB92 concentrations, pH, and temperature) on the oxidative degradation of AB92 was studied. The catalyst after magnetic separation remained stable and reusable even after five cycles. Furthermore, the CNTs/AgFeO2/PANI catalyst has demonstrated superior degradation ability of all three azo dyes when combined into a single solution, making it an effective catalyst for the disposal of hazardous dyes from contaminated water.