|
چکیده
|
The design and synthesis of high-performance catalytic compounds for the decomposition and removal of wastewater containing hazardous contaminants are substantial for water remediation. Here, we report the efficient preparation of A2Ce2O7 (A = Bi, Dy, and Pr) nanostructures and cerium dioxide nanoparticles utilizing barberry extract as an environmentally friendly reactant and their application as natural-based nanocatalysts to decompose and eliminate hazardous contaminants in an aqueous medium. The features of the produced oxide nanostructures were checked utilizing various techniques. The activity of the fabricated photocatalytic nanostructures was evaluated in the decomposition of Acid Red 14 contaminants under visible light. The outcomes revealed that the kind of trivalent element introduced meaningfully affects the dimension, architecture, optical properties, porosity, and catalytic performance of the ceria sample. Compared to other nanocatalysts, porous Pr2Ce2O7 nanostructures exhibited enhanced photodegradation yield for decomposing Acid Red 14 (99.2%). The porous Pr2Ce2O7 sample also demonstrated stable performance after ten cycles. Photo-generated holes and hydroxyls are the leading species accounting for Acid Red 14 decomposition. Furthermore, the decomposition kinetics of Acid Red 14 followed the pseudo-first-order kinetics.
|