Facile Synthesis and Characterization of SrCO3/MgO/CaO/CaCO3 Novel Nanocomposite for Efficient Removal of Crystal Violet Dye from Aqueous Media

Inorganics, Journal Year: 2025, Volume and Issue: 13(4), P. 112 - 112

Published: April 3, 2025

Crystal violet dye poses significant environmental and human health risks due to its toxicity, persistence, bioaccumulative nature. It contributes potential carcinogenicity, cytotoxicity, systemic toxicity upon exposure. To address this issue, a novel SrCO3/MgO/CaO/CaCO3 nanocomposite was synthesized using the Pechini sol-gel method, producing AE500 AE700 at 500 700 °C, respectively, for efficient removal of crystal from aqueous media. X-ray diffraction (XRD) analysis confirmed formation crystalline phases, with average crystallite sizes 64.53 nm 75.34 AE700. Energy-dispersive spectroscopy (EDX) revealed elemental compositions variations in carbon, oxygen, magnesium, calcium, strontium percentages influenced by synthesis temperature. Field-emission scanning electron microscopy (FE-SEM) showed morphological differences, where had irregular polyhedral structures, while exhibited more compact spherical formations, grain 99.98 132.23 nm, respectively. High-resolution transmission (HR-TEM) structural integrity nano-scale morphology, showing aggregated irregularly shaped particles AE500, displayed well-defined nearly nanoparticles. The calculated particle diameters were 21.67 41.19 AE700, demonstrating an increase size Adsorption studies demonstrated maximum capacities 230.41 mg/g 189.39 adsorption process exothermic, spontaneous, physical, following pseudo-first-order kinetic model Langmuir isotherm, indicating monolayer onto homogenous surface.

Language: Английский

In situ embedding of Fe3O4 into large-lateral graphene oxide with chitosan for enhanced sulfonic dyes removal

Diamond and Related Materials, Journal Year: 2025, Volume and Issue: unknown, P. 112335 - 112335

Published: April 1, 2025

Language: Английский