Document Type : Research Paper
Department of Biology, Faculty of Science, Science and Research Branch, Islamic Azad University, Tehran, Iran
Department of Biology, Faculty of Sciences, Mashhad Branch, Islamic Azad University, Mashhad, Iran
Nuclear Medicine Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
Department of Medical Biotechnology and Nanotechnology, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
In this work, carbon quantum dots (CQDs) were synthesized through a simple and efficient hydrothermal method with the usage of Trigonella foenum-graecum L. seeds as a raw material. The synthesis of CQDs was confirmed by the usage of FTIR, FESEM, EDX, TEM, UV-Vis, and PL analyses. The photocatalytic activity of CQDs was investigated for the degradation of Rhodamine B (RhB) dye as a target pollutant, resulting in the photodegradation percentage of 92% during 80 min, which indicates the effective role of CQDs in RhB decolorization under UVA-light irradiation. Also, the biocompatibility of CQDs was evaluated on normal (rat fibroblast) cell and cancer CT26 cell lines through the MTT assay, and the concentration-dependent cytotoxicity of CQDs was confirmed along with the IC50 value equal to 876 ppm against cancer CT26 cell lines.