Preparation of multifunctional silver-ferrite nanocomposite coated with Costus igneus leaf extract for effective removal of modern textile dye, antibiotic resistant in bacteria and theranostic system for breast cancer treatment applications

International Journal of Environmental & Analytical Chemistry, Journal Year: 2025, Volume and Issue: unknown, P. 1 - 26

Published: Jan. 2, 2025

In the present study, novel Costus Igneus (CI) leaf extract-coated silver-ferrite nanocomposite (CI@)AgFeO2 NC) was fabricated and assessed for its potential in photocatalytic, antimicrobial, antioxidant anticancer activities. At first, synthesis of AgFeO2 nanoparticles achieved via an auto-combustion method utilised to coat with extract. The prepared extract analysed through gas chromatography coupled mass spectrometry (GC-MS). Further, NPs CI coated CI@)AgFeO2NC were by various analytical techniques such as UV-Vis DRS(Ultraviolet-Visible Diffuse Reflectance Spectroscopy), TEM-SAED (Transmission Electron Microscopy), XRD (X-ray Diffraction), ZP (Zeta Potential), BET (Brunauer-Emmett-Teller). photocatalytic dye degradation study presence visible light. A narrow band gap emission observed due incorporation onto AgFeO2. CI@AgFeO2 NC showed excellent properties under irradiation light at optimised parameters time (180 min), pH reaction medium (pH 3), sample dosage (100 mg). Furthermore, produced evaluated using 2,2-azinobis (3-ethylbenzothiazoline-6-sulphonate(ABTS), nitric acid (NO) radical assays, 2,2-diphenyl-1–1-picrylhydrazyl(DPPH) activity, respectively. Additionally, investigated antibacterial antifungal against S. Aureus, E. Coli, A. Niger, C. albicans B. Subtils. Moreover, vitro cytotoxicity also human breast cancer MCF-7 cell lines. viability assay reactive oxygen species (ROS) generation studied treating lines different concentrations, experimental results suggest that shows a significant reduction appreciable increase ROS generation. Overall, could be multifunctional applying applications.

Language: Английский

Efficient photocatalytic methylene blue dye degradation from green-synthesized silver-doped iron oxide (Ag@Fe2O3) nanostructures

Discover Nano, Journal Year: 2025, Volume and Issue: 20(1)

Published: April 4, 2025

This study presents an environmentally friendly method for synthesizing Ag@Fe2O3 nanostructures through a hydrothermal technique that utilizes Saussurea obvallata leaf extract as reducing and capping agent. The material was characterized using UV-Vis, FTIR, XRD, SEM-EDX, TEM-SAED-line profile analysis. UV-Vis shows maximum absorbance peak at 380 nm, showing band gap of 3.26 eV. FTIR analysis revealed several functional groups (vibrational modes), including 944 514 cm-1 (Fe-O) 445 (Ag-O). XRD spectra confirmed the crystalline nature and, Scherrer equation, showed average crystallite size 49.57 nm. EDX presence only Ag, Fe, O elements. SEM TEM-SAED analyses echinus-like morphology with interplanar spacing 126 pm nanostructures. photocatalytic activity investigated degradation methylene blue (MB) dye in UV-visible light irradiation. It observed 97.10% MB occurred within 60 min, rate constant half-life being 0.03025 min-1 22.90 respectively. deduced synergistic interaction Ag Fe2O3 promoted separation charge, significantly diminishing electron-hole recombination. research plant readily available, cost-effective, way to produce highly efficient photocatalysts degrading wastewater compounds.

Language: Английский