Sumit Ringwal*, Aayasha Negi, Deepak Patel and Satish C Sati
Among various physical and biological methods for the synthesis of the nanocomposite, the green synthesis method is one of the most sustainable approaches for the synthesis of the NCs. Nanomaterials are widely synthesized by using plant extract, which is considered a low cost and highly efficient reactant for the fabrication of nanomaterials. In this research article, Citrus medica peels extract acts as a capping and reducing agent for the synthesis of Ag-MgO NCs. Various characterization techniques were employed for the characterization of fabricated nanomaterial. Like UV-Visible spectroscopy, SEM, EDX, TEM, and TGA. Two different peaks were obtained at different wavelengths in the UV-Visible spectrum for fabricated nanocomposite. The first peak occurred at 346 nm, which corresponds to Ag-NPs, and the second peak was detected at 293 nm, which corresponds to MgO-NPs. X-ray diffraction pattern suggest that the synthesized nanomaterials are cubic in nature. It can be concluded from the TGA plot that the synthesized Ag-MgO nanocomposite is thermally stable up to 600°C. Nanomaterials are uniform and crystalline according to SEM analysis. Fabricated nanomaterial was used as adsorbent for the removal of MB dye which shows significant results about 100% of MB dye was removed when a 4g/L dose of Ag-MgO NCs was used further effect of dose, time and on adsorption was studied. The reduction of MB dye was used to evaluate the catalytic efficiency of the generated nano-catalyst. In this reaction, NaBH4 was used as a reducing agent and nanomaterial as a catalyst. Synthesized NCs exhibit excellent catalytic activity as they degrade toxic dyes up to 90%, 8 min for MB. The rate of reaction was evaluated using a spectrophotometer, and it was reported that the reaction is pseudo-first order and rate constant; we found 8.69 × 10-3s-1. Synthesized NCs can be used as an excellent photo catalyst to degrade various hazardous dyes to improve water quality.
Published Date: 2023-09-27; Received Date: 2023-03-27
