Supermagnetic Fe3O4 nanoparticles from Hibiscus Rosa Sinensis leaf extract and their application
Fe3O4 nanoparticles from Hibiscus rosa sinensis leaf extract address inefficiencies in dye removal by providing high adsorption capacity and superparamagnetic properties, achieving over 99.50% removal efficiency for Reactive Blue-4 dye.
Patent Information
- Application Number
- DE202024106436
- Authority / Receiving Office
- DE · DE
- Patent Type
- Utility models
- Current Assignee / Owner
- Priority Date
- 2024-05-27
- Filing Date
- 2024-11-09
- Publication Date
- 2024-12-24
- Estimated Expiration
- 2034-11-30
AI Technical Summary
Existing methods for dye removal are inefficient and lack the ability to effectively utilize natural materials for high adsorption capacity and superparamagnetic properties.
Fe3O4 nanoparticles synthesized from Hibiscus rosa sinensis leaf extract, with specific size distribution and functional groups, are used for efficient dye removal through a co-precipitation reaction.
The nanoparticles achieve a remarkable removal efficiency of over 99.50% for Reactive Blue-4 dye with a high adsorption capacity of 819.67 mg/g, leveraging superparamagnetic properties and functional groups.
Abstract
Description
[0001] The Fe3O4 nanoparticles synthesized from Hibiscus rosa-sinensis leaf extract (HS-Fe-NPs) exhibit unique features, such as a size distribution in the range of 20–40 nm, superparamagnetic behavior with a saturation magnetization of 80.58 emu / g, and a high adsorption capacity for the dye Reactive Blue-4. These properties are achieved through a specific synthesis process that utilizes the reduction of iron ions in a co-precipitation reaction, utilizing natural phytochemicals from the leaf extract.
[0002] The HS-Fe NPs exhibit a remarkable removal efficiency of over 99.50% for the dye Reactive Blue-4 at an initial concentration of 100 mg / L and a pH of 6.0. This high efficiency is due to the favorable surface morphology, superparamagnetic properties, and the presence of various functional groups from the plant extract that contribute to the adsorption process.
[0003] Characterization studies, including scanning electron microscopy (SEM), X-ray powder diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), and vibrating probe magnetometry (VSM), confirm the unique properties and efficacy of the synthesized nanoparticles. The Freundlich isotherm model describes the adsorption behavior and shows a favorable adsorption process with a maximum capacity of 819.67 mg / g for the dye Reactive Blue-4.
Claims
[1] A superparamagnetic Fe304 nanoparticle composition derived from the leaf extract of Hibiscus rosa-sinensis, characterized by their superparamagnetic properties and consisting of Fe3O4 nanoparticles, with the leaf extract of Hibiscus rosa-sinensis being used as a reducing and stabilizing agent during nanoparticle synthesis, enabling an environmentally friendly synthesis process. [2] The composition of claim 1, wherein the nanoparticles have a size distribution in the range of 1 nm to 100 nm, with a preferred size range of 10 nm to 50 nm, which ensures optimal surface properties and reactivity for adsorption applications in the environmental and biomedical fields. [3] The composition of claim 1, wherein the nanoparticle composition has a saturation magnetization of 50 to 100 emu / g, thereby enabling efficient magnetic separation and recovery from aqueous solutions for cyclic applications. [4] The composition of claim 1, wherein the nanoparticles have an approximately spherical shape and a uniform distribution, which improves the surface properties and the interaction potential with impurities in adsorption processes. [5] The composition of claim 1, wherein the nanoparticle composition contains additional stabilizing compounds from the leaf extract of Hibiscus rosa-sinensis, which provide improved stability and biocompatibility, making the composition suitable for environmental, biomedical and industrial applications. [6] The composition of claim 1, wherein the nanoparticles are coated with organic compounds from Hibiscus rosa-sinensis, which facilitates compatibility with various applications such as water treatment, drug delivery and targeted therapeutic applications.