The current investigation focuses on the photocatalytic degradation and biological applications of M. sericea leaf extract‐mediated Ag 3 PO 4 /SnO 2 nanocomposites (NCs). The synthesized nanomaterials were characterized through various characterization techniques to determine their structural and optical properties. The SnO 2 , Ag 3 PO 4 , and Ag 3 PO 4 /SnO 2 nanomaterials exhibited the crystallite sizes of 8.33, 35.39, and 18.99 nm through X‐ray diffraction (XRD). The atomic force microscopy (AFM) analysis revealed the roughness of the synthesized nanomaterials. High‐resolution transmission electron microscope (HRTEM) displayed polyhedral and roughly spherical morphology of Ag 3 PO 4 and SnO 2 NPs. The X‐ray photoelectron spectroscopy (XPS) determined oxidation states of elements in the NCs. Photocatalytic activity displayed degradation of rhodamine B (RhB) dye using Ag 3 PO 4 /SnO 2 NCs with 88.13% in distilled water and 77.68% in a river water sample. The recyclability showed that the catalyst remained stable and effective after five consecutive reuse cycles. Studies on phytotoxicity using seeds of Vigna radiata showed the nontoxicity of photocatalytically degraded dye solutions. The biosynthesized Ag 3 PO 4 /SnO 2 NCs exhibited significant antioxidant properties through radical scavenging, metal chelation, and reducing power studies. Furthermore, NCs revealed effective anticancer properties with 61.33 and 42.76 μg/mL IC 50 values in HeLa and MCF‐7 cells, respectively. Thus, the biosynthesized Ag 3 PO 4 /SnO 2 nanomaterial represents a potential candidate for degrading toxic dyes and finding other applications as pharmaceutical agents.
Hadkar et al. (Wed,) studied this question.
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