Efficient Photocatalytic Degradation of Textile Dyeing Cellulosic materials using CeO2 Nanoparticles by Acrylamide Sol gel Route

The cerium oxide nanoparticles were made using the sol-gel acrylamide process, which eliminated the requirement for any organometallic precursors. The manufacture of cerium oxide nanoparticles used ammonium persulfate as a gelling agent and acrylamide and N-methylene-bis-acrylamide monolayers as cross-linking polymers.. The XRD structural analysis of the cerium oxide nanoparticles' reveals that the crystalline size varied from 7 nm to 17 nm, and all of the peaks match a cubic structure. As the calcination temperature rose, the microstrain dropped from 9.13 x 10 ^− 3 to 7.20 x 10 ^− 3 , and the dislocation density was also measured. A high-resolution transmission electron microscope (HTEM) was used to analyze the morphology of the particles, which have a size range of 8 to 19 nm at different temperatures such as 300, 400, and 500 ⁰ C. The elemental analysis that EDXA performs gives details on the elements that are present in our samples. The UV-diffuse reflectance measures how much light a sample absorbs, reflects, or transmits. The energy band gap between 3.3 and 3.5 eV was discovered by Tauc’s plot. We currently employ a variety of methods to remediate it. Among the methods for dye degradation is semiconductor-assisted photocatalysis. In this work, we use CeO ₂ as the catalyst to examine the materials' photocatalytic performances in a batch reactor under UV light irradiation in order to degrade Reactive Green 19 (RG19), Reactive Orange 84 (RO84), and Reactive Violet 1 (RV1). The enhanced catalytic activity was noticed for 300°C calcined samples in the case of Reactive Violet 1 dye, with a higher degradation rate constant compared with other dyes. The samples calcined at 300 ^o C exhibited highest degradation efficiency 99.9% (time − 180min, pH = 9, and at 0.4 g/L loading. Further, detailed investigations were made to understand the degradation of the organic dyes under the influence of various photocatalytic reaction parameters, like effect of pH of dye, concentration of the dye and photocatalyst dosage.