Review on the Use of Magnetic Nanoparticles in the Detection of Environmental Pollutants

Abstract

Magnetic nanomaterials (MNPs) have been widely used in the detection of pollutants in the environment because of their excellent nano effect and magnetic properties. These intrinsic properties of MNPs have diversified their application in environmental contaminant detection. In this paper, the research status quo of the use of MNPs in detecting organic and inorganic contaminants from wastewater and soil is reviewed. The preparation method and modification technology of magnetic nanoparticles are also described in detail. The application prospect of magnetic nanoparticle composites in the detection of contaminants in water and soil is discussed. Compared with traditional detection methods, MNPs are more accurate and efficient in pollutant enrichment. Moreover, the biological synthesis of MNPs was proven to be eco-friendly and aided in sustainable development. The study shows that MNPs have good application prospects in soil pollution detection, but the mechanism still needs to be investigated to realize their popularization and application.

Tuning the Superspin Dynamics in Inverse Spinel Ferrite Nanoparticle Ensembles via Indirect Cation Substitution

“…Magnetic nanoparticle ensembles have recently attracted considerable attention due to their existing and potential applications in a broad range of fields, from biomedicine [1][2][3][4][5][6][7] to high-density magnetic recording [8,9], imaging [10][11][12][13][14], and water and soil remediation [15][16][17]. Besides their large surface area, which is a characteristic of all nano-systems, important for the behavior of magnetic nanoparticles is the fact that they are made of a single magnetic domain whose giant magnetic moment is called the superspin.…”

Highly Efficient Separation of Ethanol Amines and Cyanides via Ionic Magnetic Mesoporous Nanomaterials

“…In recent years, magnetic mesoporous materials with expansive specific surface area and excellent magnetic separation capabilities have been widely applied to the adsorption process [ 41 , 42 , 43 , 44 , 45 ]. The use of Fe 3 O 4 as the magnetic core can effectively obviate time-consuming steps such as centrifugation or filtration [ 46 ].…”

One-Pot Strategy for Conjugation of Amine-Covered Iron Oxide Nanoparticles with Carbohydrates: A Sustainable Alternative

“…4−8 Another field with increasing interest in IONPs is the detection and remediation of environmental pollutants. 9 Particularly, IONPs are widely used for the design and application of magnetic GlyNPs due to their biocompatibility, affordable synthesis, long shelf life, and potential for recovery through the use of an external magnetic field. 10 Several carbohydrate derivatives, such as glycans, carbohydrates linked to surfactants, polymers, or amino acids, with different mono-or polysaccharides, such as mannose, galactose, and glucose, have been used as IONPs coatings.…”

“…Glyconanoparticles (GlyNPs) are sugar-coated nanoparticles that combine the multivalent presentation of carbohydrates with the unique physicochemical properties of a nanosized core. There is a great diversity of materials that can constitute the core of GlyNPs, providing them with a wide variety of physical, optical, and electronic qualities. , Particularly, iron oxide nanoparticles (IONPs) are widely used for biomedical applications, such as drug delivery, magnetic resonance imaging (MRI), magnetic hyperthermia, and targeted gene therapy, and for purification or detection of biomolecules and microorganisms. − Another field with increasing interest in IONPs is the detection and remediation of environmental pollutants . Particularly, IONPs are widely used for the design and application of magnetic GlyNPs due to their biocompatibility, affordable synthesis, long shelf life, and potential for recovery through the use of an external magnetic field .…”