Publications by authors named "Franciscarlos G da Silva"
Nanotechnologies based on magnetic materials have been successfully used as efficient and reusable strategies to remove pharmaceutical residuals from water. This paper focuses on the fabrication, characterization, and application of ferrite-based magnetic nanoparticles functionalized with L-lysine as potential nanoadsorbents to remove acetylsalicylic acid (ASA) from water. The proposed nanomaterials are composed of highly magnetic and chemically stable core-shell nanoparticles covered with an adsorptive layer of L-lysine (CoFeO-γ-FeO-Lys).
View Article and Find Full Text PDFA numerical study on the interplay between the intra-particle and interparticle characteristics in bimagnetic soft/soft and hard/soft ultrasmall nanoparticle assemblies.
Nanoscale Adv
September 2022
Article Synopsis
- Scientists studied tiny magnetic particles (about 3 nanometers wide) to see how they behave when cooled using special methods.
- They found that the way these particles interact with each other affects how strong their magnetism is, especially in different types of samples.
- The research shows that by changing the design of these tiny particles, it's possible to control their magnetic properties, which could help in making better tech in the future.
Novel nanoadsorbents based on core-shell bimagnetic nanoparticles (CoFeO@ɣ-FeO) with two different mean sizes were elaborated, characterized and applied as potential sorbents for Cr(VI) removal from aqueous solutions through magnetically assisted chemical separation. The nanoadsorbents were characterized by XRD, TEM, FTIR, XPS, potentiometric-conductometric titrations, BET and vibrating sample magnetometry. The influence of contact time, shaking rate, pH, pollutant concentration, temperature and competing ions on Cr(VI) adsorption were evaluated.
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