Evaluation of NiO nanoparticles infused Lup@CS nanocomposites for the degradation of Acridine orange and rose Bengal dyes

One of the most critical issues facing the globe today is the lack of readily available potable water, and scientists have made significant progress toward a solution. Compared to traditional treatment methods, nanotechnology-treated water is preferable because it eliminates dangerous microorganisms and organic pigments. In this study, we have fabricated Nickel Oxide - Lupeol loaded chitosan Nanoparticle (Lup@CS-NiO) nanocomposite via ionic gelation method and this nanocomposite was subjected to various characterization, that includes FTIR, FESEM, EDX, XRD, XPS, and UV–Vis to gain more information about the synthesized nanocomposite. We used visible light irradiation to examine the photodegradation of two organic dyes, Acridine Orange (AO) and Rose Bengal (RB), to determine how well the NiO/Lup@CS nanocomposites worked. The NiO/Lup@CS nanocomposites showed remarkable photocatalytic activity, long-term stability, and the rapid degradation of the dye solution to 85.98% (AO) and 86.46% (RB) in only 60 min. When compared to pure NiO nanoparticles, the degrading efficiency of the NiO/Lup@CS nanocomposites was much higher. In visible light irradiation studies using trapping, the reactive oxidative species involved in the photocatalytic process include superoxide radical anion (O2 radical) and OH radical. The photocatalyst was able to attain a 100% recovery rate by a simple hand-picking method, and it remained stable even after three uses. The study introduces a new Lup@CS nanocomposite that is loaded with NiO nanoparticles. It shows great effectiveness in breaking down the Acridine Orange and Rose Bengal dyes. The innovation's potential environmental effect is underscored by the fact that it provides a viable alternative for wastewater treatment. [Display omitted]