Journal Article

Plant-mediated synthesis of Ag and Se dual-doped ZnO-CaO-CuO nanocomposite using Nymphaea alba L. extract: assessment of their photocatalytic and biological properties

Samarghandian, Saeed, Sabouri, Mohammad, Darroudi, Majid, Moghaddas, Samaneh Sadat Tabrizi Hafez, Sabouri, Zahra, Mostafapour, Asma

2024

Overview

The environmentally friendly procedure was developed for the fabrication of Ag and Se dual-doped ZnO-CaO-CuO nanocomposite (Ag and Se dual-doped ZnO-CaO-CuO-NCP) using Nymphaea alba L. leaves extract as a reducing and stabilizer agent. Different techniques have been used to characterize the physicochemical properties of the nanocomposite, including FTIR, XRD, FESEM, EDX, PSA, and UV-vis. According to FTIR spectra, functional groups or phytochemicals were seen in the structure of the synthesized nanocomposite. The crystalline nature of the nanocomposite was approved by the XRD pattern. FESEM/PSA images of nanocomposite confirmed the spherical morphology and the average size of 20–35 nm. A green manner was used for the synthesis of Ag and Se dual-doped ZnO-CaO-CuO-NCP to make an efficient photocatalyst for the removal of methylene blue (MB) dye from aqueous solutions. As shown by the photodegradation experiments, 95% of the MB dye was degraded after 120 min at a constant rate of 0.0154 min −1 . In addition, the ability of the nanocomposite was studied to investigate their cytotoxicity effects for the killing of cancer Huh-7 and normal L929 cells with the MTT assay. The IC 50 amounts for cancer Huh-7 cells at times 24, 48, and 72 h were determined as 500, 241.5, and 102.8 μg/mL, respectively, and normal L929 cells have no significant cytotoxicity. As a result of our investigations, the prepared nanocomposite will likely be effective in treating organic pollutants and biomedical wastes generated by industrial processes. Graphical abstract

• Publisher: Springer Berlin Heidelberg
• Subject: Biotechnology / Energy / Original Article / Renewable and Green Energy