Biogenic engineered zinc oxide nanoparticle for sulfur black dye removal from contaminated wastewater: comparative optimization, simulation modeling, and isotherms
Sangita Yadav, Subhash Chander, Asha Gupta, Navish Kataria, Kuan Shiong Khoo
Abstract
values of 0.998 for ZnO and 0.993 for ZnO-ME. Notably, ZnO-ME exhibited a greater dye removal efficiency 80% than ZnO i.e., 71%, it may be due to the presence of amorphous carbon on the surface of ZnO-ME. Among the various isothermal models, the Freundlich model displayed the strongest correlation with the dye removal data, confirming the multilayer adsorption of dye on both nanoparticles and supporting physisorption. Therefore, ZnO and ZnO-ME nanoparticles have been proven as potential tools for mitigating environmental impacts associated with dye-containing wastewater.
Topics & Concepts
ZincNanoparticleAdsorptionMesoporous materialMaterials scienceChemical engineeringPlackett–Burman designCentral composite designResponse surface methodologyFreundlich equationLangmuirNuclear chemistryNanotechnologyChemistryChromatographyOrganic chemistryMetallurgyCatalysisEngineeringAdsorption and biosorption for pollutant removalNanoparticles: synthesis and applicationsAdvanced Photocatalysis Techniques