Afsaneh Mollazadh - Department of Chemistry, Faculty of Science, University of Kurdistan, Sanandaj, Iran
Mahdieh Ghobadifard - Department of Chemistry, Faculty of Science, University of Kurdistan, Sanandaj, Iran
Sajjad Mohebbi - Department of Chemistry, Faculty of Science, University of Kurdistan, Sanandaj, Iran

Catalases, in biological systems, serve as protectors against oxidative damages resulting fromhydrogen peroxide [۱]. This enzyme transforms millions of hydrogen peroxide molecules intowater and oxygen every second [۲]. It exhibits the highest concentration in the liver, kidneys,pancreas, and red blood cells [۳]. The active site of this enzyme comprises an iron porphyrin.Inthis study, we utilized the hydrothermal method to synthesize Ce/SiQDs. We investigated thecatalytic activity of these Ce/SiQDs in decomposing hydrogen peroxide into water and oxygen.The activity of the Ce/SiQDs was evaluated using UV-visible spectroscopy. Additionally, weemployed FE-SEM, DRS, EDS, FT-IR, PL, TGA, CHN, and UV-vis spectroscopy for theidentification of the prepared catalase. The results demonstrated that Ce/SiQDs possess thepotential to act as synthetic catalase enzymes capable of inhibiting the action of hydrogen peroxidein body cells

Quantum Dots, Catalase Pseudo-Enzyme, Hydrogen Peroxide, Silicon quantum dot