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Biosynthesis of cobalt oxide nanoparticles (Co3O4-NPs) using Caccinia Macranthera extract and evaluation of their cytotoxicity and photocatalytic activity

2023; Elsevier BV; Volume: 297; Linguagem: Inglês

10.1016/j.mseb.2023.116782

1873-4944

Ali Mohandes, Mahmoud Reza Aghamaali, Zahra Sabouri, Majid Darroudi,

Advanced Nanomaterials in Catalysis

A novel green synthesis of cobalt oxide nanoparticles (Co3O4-NPs) has been conducted using Caccinia macranthera seed extract as a renewable and non-toxic reducing agent. The biosynthesized nanoparticles have been characterized through different analyses such as TGA/DTA, XRD, FESEM, EDAX, FT-IR, and UV–Vis. Based on the XRD results, the crystallite size of Co3O4-NPs was in the range of 30–45 nm. The FESEM images displayed that Co3O4-NPs have a granular shape. The MTT assay's results showed an acceptable anticancer feature of the Co3O4-NPs owing to their suitable IC50 value (375 µg/mL). In addition, the photocatalytic activity of Co3O4-NPs against methylene blue (MB) dye degradation was assessed, and the results pointed to the fact that Co3O4-NPs showed more than 89% degradation effect on MB dye after 105 min.