One-step synthesis of water-dispersible cysteine functionalized magnetic Fe3O4 nanoparticles for mercury(II) removal from aqueous solutions

Preparation and characterization of magnetic iron oxide nanoparticles functionalized by l-cysteine: Adsorption and desorption behavior for rare earth metal ions

“…Lcysteine (Cys), a non-essential, water soluble, with three functional groups (-SH, -NH2, -COOH), has a binding affinity to coordinate with Fe3O4 NPs surface. In Cys molecules, the divalent sulfur (-SH) add an extra functional group and act as antioxidant, while the amine (-NH2) and carboxylic (-COOH) in Cys molecules facilitate the functionalization of Fe3O4 NPs surface in order to have high dispersibility and solubility in aqueous solutions [22,23].…”

Solvothermal synthesis and characterization of magnetic Fe3O4nanoparticle by different sodium salt sources

“…Using an external magnetic field can lead to easy and rapid separation of the Fe 3 O 4 particles from their matrix or solution [2,3]. Other advantages of the magnetic Fe 3 O 4 nanoparticles, including scalable and non-toxic synthesis and economical and efficient properties, are the other reason to consider Fe 3 O 4 nanoparticles for potential applications and fundamental research [1,4,5]. Magnetic Fe 3 O 4 nanoparticles are supposed to be the main potential adsorbent for toxic and radioactive heavy metals such as Cu, Cr, Cd, Ni, As, Pb, and U, because of their good chemical and mechanical stability, high surface area and the unique advantage of easy separation [1,4,[6][7][8][9].…”

Magnetic solid‐phase extraction for determination of sulpiride in human urine and blood using high‐performance liquid chromatography

“…Magnetic nanoparticles (MNPs) such as magnetite (Fe 3 O 4 ) (Shen et al, 2014) and maghemite (γ-Fe 2 O 3 ) (Lin et al, 2012) possess high surface areas, which can improve the adsorption capacity of the analyte and superparamagnetism properties, allowing convenient separation of adsorbent from the solution by applying a strong magnetic field in a batch system. These properties make the MNPs an excellent candidate as solid-phase extractor for extraction and separation of various analytes.…”