Abstract
In this study, zinc nanoparticles (Zn NPs) were synthesized from the leaves of the plant Hypericum calycinum L by the biogenic method. Ultra-violet visible spectrum (UV-Vis), Fourier transmission electron spectroscopy (FTIR), transmission electron microscopy (TEM), and X-Ray were used to examine the absorbance, vibration bands, morphological structure, particle size, and crystalline size of the synthesized Zn NPs, respectively. Diffraction characterization (XRD) was performed. According to the results obtained, it was calculated that NPs gave peaks in the absorbance ranges of 274 and 370 nm, had a size of 29.066 ± 10.561 nm, and their crystalline size was 16 nm. Then, photocatalytic processes were started for the removal of methylene blue (MB) dye by combining the catalysis of NPs under the photocatalysis of sunlight. The degradation process provided by photocatalytic processes was carried out every half hour for 150 minutes. As a result of 150 minutes, the photodegradation efficiency was calculated to be 70%. This study supports future photodegradation studies for the removal of waste dyestuffs.